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553-700-65 : Catalyst Calibration Manual

1. i E VHFD Calibration Verification Connections vhfcw_cv This process validates the instrument s calibration to Level IV requirements When performed regularly at the prescribed time interval NIST traceability of the instrument is maintained All guaranteed ESSD amplitude accuracy and step attenuation specifications are tested Runtime for the test process is approximately 20 minutes excluding test setup Program Name beta_vhfcwcv Catalyst Calibration Manual 83 qa i 84 exa gt zm Equipment Required Table 12 ay Model PN Description EE HP 8902A Measuring Receiver Measuring Receiver 733 108 00 10 dB Attenuator N 804 785 00 Catalyst Multipurpose CV DIB Checker Test Setup The following setup for the test process is also presented at runtime via the test station window when the program is run 1 2 3 4 5 6 Install the CV DIB pn 804 785 00 onto the test head Connect the HP 11722A power sensor to the HP 8902 RF Power connector for calibration After calibration the sensor is connected to the DIB s N type adapter Connect an SMA to 2 pin cable pn 807 322 00 to the SMA side of the N connector The 2 pin receptacle end of the cable should then be connected to channel A Refer to the so
2. Catalyst Calibration Manual DIB PN 804 785 00 VHFECW Calibration Verification Connections 85 nm ME cD CED uw6000_cv Calibration Procedure Instrument performance is specified at the test head on the Device Interface Board DIB All measurements for the calibration will be made at the DIB Refer to the figure Layout of the 866 532 00 CV DIBfor DIB connections used with the uw6000_cv program Estimated Time Matrix The different times needed to run the uw6000_cv checker are shown in table Level 4 ETM Level4ETM Table 13 Program Estimated Time uw6000_cv 5 minutes Source 42 minutes quad port VNA 84 minutes octo port VNA Overview The uw6000_cv checker is a level 4 test Instrument performance is specified at the test head on the Device Interface Board DIB All measurements for the calibration will be made at the DIB Refer to figure Layout of the 866 532 00 CV DIB for DIB connections used with the uw6000_cv program Required Equipment Required Equipment ee S a For systems with a Signal Delivery Frame SDF 86 Catalyst Calibration Manual cx CED Note All external instruments throughout the calibration process must have the GPIB option installed and be connected to the system through the IEEE interface Do not connect more than 15 devices to any one bus Connect one device for every 6 ft 2 m of cable used Do not use more than 65 ft 20 m of cable to connect devices to th
3. 803 808 00 Kit PLF LFAC CV PLF LFAC PMM instrument performance is time dependent Customer performance requirements dictate the appropriate calibration intervals Regardless of the selected interval the specified equipment and fixturing is only required if the PMM is calibrated in the test system See Alternate DC Calibration for an alternate calibration method 14 Catalyst Calibration Manual mm D cD CED Non Teradyne Equipment Information Non Teradyne equipment required for the traceability processes may be obtained from the following manufacturers e Hewlett Packard Company US Telephone 1 800 333 1917 Outside US 208 344 4809 e Fluke Corporation P O Box 9090 Everett WA 98206 US Telephone 1 800 443 5853 Outside US 206 356 5500 e Todd Systems Inc 50 Ash St Yonkers NY 10701 US Telephone 914 963 3400 e Datron Instruments Inc 3401 SW 42nd St Stuart FL 33494 US Telephone 305 283 0935 Catalyst Calibration Manual 15 qi ij caD CED External Internal Calibration and Traceability Procedures Overview This chapter provides detailed instructions for calibration of the Catalyst test system The chapter is divided into three sections e Internal Automatic Calibration Occurs automatically at test program load time e Internal and External System Checkers Invoked from the Checkers menu e External Calibration Procedures for Internal References Performed at system output jacks by Maintenance Engi
4. HP 3458 Digital Multimeter GPIB Address 10 PN 358 692 00 00 BNC F Banana O Oo OO PN 358 216 04 BNC M BNC M PN 800 487 00 PN 800 487 00 Slot Header z J12 i J10 lo Inputs BNC1 DIB 804 723 00 Pin 10 Pin 1 on cables and DIB connectors is marked Catalyst LFACCV Calibration Verification Connections Not to Scale cat_plf_cv This procedure describes the field traceability process cat_plf_cv for the Catalyst precision low frequency PLF instruments PLF source PLFSrc and PLF digitizer PLFDig The cat_plf_cv process is menu driven The user is prompted for all fixture connections instrument connections and test selection choices Specifications traced are e DC offset e Linearity e DC offset drift e AC amplitude accuracy Catalyst Calibration Manual 63 D iji caD CED Equipment Required Table 5 803 808 00 Catalyst PLF LFAC Tool Kit External Equipment Required HP 3458A Multimeter with GPIB option Address 10 Run Time Summary Total run time for the PLFSrc and PLFDig pair is approximately 26 minutes Table 6 Test Name Run Time AC Amplitude Accuracy DC Offset Drif DC Offset 1 minute Checker Execution Use this procedure to execute the Catalyst PLF traceabilit
5. e Select option 2 Options Menu for a list of program options The Options menu provides the capability to select either Absolute Amplitude or Step Attenuation individually Repeat steps 3 and 4 for each VHFAWG400 DIFF in the system 75 qi ij caD CED HP 8902 Measuring Receiver GPIB Address 14 DIB Strain Relief Bracket Insert PN 733 108 00 10 dB Attenuator here as instructed HP 11722 Sensor PN 807 322 00 PN 807 322 00 PN 359 083 01 ME m 50 Ohm ME a Attenuator Slot Header Inputs DIB PN 804 785 00 VHFAWG400 DIFF Calibration Verification Connections hsd_edge_cv Equipment Required Table 10 76 Catalyst Calibration Manual qi CE caD CED Checker Execution 1 2 3 HP 54750 Scope GPIB Address 7 To Scope Load hsd_edge_cv load into Station 1 or Station 2 if testing test head 2 Lock down the DIB onto the test head under test Make connections according to the Connection diagram see figure Catalyst HSD Calibration Verification Connection Do not make connections to DIB surface until instructed later after HSD Calibration Important Do
6. Overview Note Catalyst Calibration Manual Introduction The Catalyst test system contains a variety of advanced instrumentation integrated into a versatile test system configured to customer device testing needs These instruments include e DC sources and meters e AC sources meters and digitizers e Time measurement instruments e High speed digital channels Some of these instruments include OEM products as components OEM products are an integral part of the instrumentation their calibration requirements are integrated into the calibration strategy defined in this manual The calibration requirements for an OEM product integrated into a Catalyst test system may vary from the requirements defined in the OEM manuals In all cases the Teradyne calibration procedure supersedes the OEM procedure In the cases where an OEM procedure can be alternatively used such as the PMM the alternative calibration procedure is described in the External Internal Calibration and Traceability Procedures section of this manual qi ij caD CED How to Use This Manual To gain an understanding of the Catalyst calibration process the first time reader should do the following e Read section Introduction to understand calibration and traceability processes of Catalyst systems e Review the definitions in Appendix B Terms in this manual may differ from those used in your company Please review the definitions to avoid confusion e
7. e Slot x channel A to DECB A e Slot x channel B to DECB B e Slot x channel C to DECB C e Slot x channel D to DECB D where x denotes the PMM channel card slot number 4 Connect the four BNCs on the PMM external calibration cable assembly pn 804 208 00 to the coaxial connectors on the DECB as shown below e PMMA HItoA e PMMALOtoB e PMMB HI to C e PMM BLO to D 5 Load the pmm_xcal_mi checker Catalyst Calibration Manual qa CE caD CED 6 Set the termination mode under the RUN button to Continue on error 7 Run the checker by typing run and pressing lt return gt The program displays the following message shown in the figure Checker Display e The program begins by asking the operator for information to be included in the calibration record file it creates It asks for the operator s name model name serial number last calibration date of the 10V DC reference model name serial number and last calibration date of the 10K resistance reference See figure Entry Information Menu Display PMM External Calibration Program This program is used to externally calibrate the PMM in the Mixed Signal and Advanced Mixed Signal Test oyo Cemo IMPORTANT Before running this program the system internal environment must have been stable for FOUR hours This means test system power on and ALL covers in place DO NOT CONTINUE IF THESE CONDITIONS ARE NOT MET Do you wish to continue Checker Display
8. Additional functions are as follows tl dc cal _set_interval Sets the autocalibration interval el deccal Staruse inst Returns the calibration status of each DC subsystem instrument 20 Catalyst Calibration Manual cia CE caD CED tl_dccal_time Reads the time since the last calibration and the calibration status Analog Pin Units APU Calibrate analog pin units APUs using the command calibrate apu This command calibrates all APUs in the test system As the calibration routine executes the following messages are displayed Starting calibration of the APU Analog Pan Unit Calibration Starting Voltage Force Calibration Starting Voltage Measurement Calibration Starting Current Force and Measurement Calibration Starting APU Native Voltage Measurement Calibration Starting APU Native Current Measurement Calibration APU Calibration Complete You can also calibrate APUs from a test program by using the statement start apu cal The following function returns the number of minutes since the last APU calibration int tl_apucal_time Precision Multimeter PMM To make sure that the precision multimeter PMM meets its rated accuracy specifications it must be calibrated Calibrate the PMM using Calibrate station 7 pmm dcv acv ohms where station Perform calibration in the specified station window pmm Perform calibration of all the PMM modes This calibration takes 12 minutes dcv Perform calib
9. Equipment Required 44 Procedure 45 Setup 44 High Current Unit Level 1 Calibration 26 High Speed Digital Channels Level 1 Calibration 26 cal_set statement 26 cal_set Syntax 27 High Speed Sampler Internal Automatic Calibration Lev el 1 16 Advanced Time Measurement Subsystem 22 Analog Pin Units 21 Autocal 18 DC Subsystem 19 Calibration Functions 20 Calibration in the Debug Display 20 Calibration Messages 20 High Current Unit 26 High Speed Digital Channels 26 High Speed Sampler 26 Instruments Calibrated During Autocal 16 Precision Low Frequency Digitizer 23 Precision Low Frequency Source 24 Precision Multimeter 21 Validity 18 VHF Arbitrary Waveform Generator 24 VHF Continuous Wave Source 25 Internal System Calibration Path 2 Internal System References 2 Internal Transfer Standards 3 Test System Instrumentation 3 Internal System References External Calibration of 6 Internal External System Checkers Level 2 28 catalyst_continuity_mi Procedure 30 System Check 28 System Check Procedure 29 L LA703 00 XTAL Oscillator Overview 37 SIGIVALS RA AANAAA 100MHz Clock Distribution 39 1O00MHz External Internal Jumper 39 1OMHz External Input 38 1O0MHz Reference Oscillator 38 Reference Distribution Circuitry 38 Sine LVPECL Conversion 39 X10 Phase Lock Loop 39 Level 1 Calibration Autocal 18 Autocalibration Products 7 Description 6 Instruments Calibrated During A
10. Repeat steps three for each instrument in the system HP441 Measuring Receiver GPIB Address 13 Stiffener Feed through Adapters alt_lo alt_hi dir_lo dir_hi alt_lo alt_hi dir_lo dir_hi alt_lo alt_hi dir_lo dir_hi alt_lo alt_hi dir_lo dir_hi Slot 7 Slot 10 Slot 14 Slot 19 B17 B16 B13 B12 B7 B6 B3 B2 Move probe to each of the AWG inputs y as directed by the program r HPSensor ai PN 359 147 00 N F SMA F T PEEN 7 50 SMA M SMA M soo VHFAWG2500 Calibration Verification Connections vhfawg 1200 cv 72 This process validates the instrument s calibration to Level IV requirements When performed regularly at the prescribed time interval NIST traceability of the instrument is maintained All guaranteed ESSD absolute amplitude and step attenuation specifications are tested Catalyst Calibration Manual To dix Program Name cD zm Runtime for the test process is approximately 15 minutes excluding test setup vhfawg1200_catalyst_cv load Equipment Required Table 8 803 804 00 Kit Multipurpose DIB 803 806 00 Kit Catalyst Level IV Base Checker Test Setup The following setup
11. The LA703 module is located in the upper left corner service side of the Catalyst mainframe For convenience the 10 MHz and 100 MHz frequency references are brought out to the connection points on the service side EMO panel See figure Catalyst Mainframe Service Side for information relative to the location of the LA703 and its interfaces Automatic Counter Control and Data Collection Method The LA703 calibration procedure can be done manually or via IEEE interface If the IEEE interface method is chosen load and run the freq_ref_mi load program In IMAGE Version 6 3 and later the file can be found in the CKRBIN directory For instances where IMAGE versions earlier than 6 3 are in use the freq_ref_mi load program is provided with Level IV program release tape Follow the instructions provided by the program The program must pass BIN 1 if adjustment of the reference oscillator is required the program instructs the operator to adjust the counter To accomplish this follow the LA703 adjustment procedure in section LA703 Adjustment Procedure The counter is placed in continuous measurement mode by the test program during the adjustment period to facilitate the proper adjustment 40 Catalyst Calibration Manual cx CED Manual Calibration Method 10 MHz REF CAL Connect a BNC cable from the EMO panel 10 MHz output to channel 1 on the counter Perform the following key sequence 1 Frequency and Ratio 2 Gate and Ext Arm twic
12. The voltage forcing functions are calibrated by measuring the differences between the forced values and the voltage references using the DC subsystem meter 111 qi ij caD CED The voltage measurement functions for the sources are calibrated simultaneously with the forcing function The difference of the read value is compared with the known forced value The current forcing functions are calibrated by forcing current through a reference resistor and comparing the voltage generated to a voltage reference using the DC subsystem meter The current measurement functions are calibrated using the same method as the current forcing function Verification of Autocalibration and Instrument Functionality The hcust checker program provides verification of the performance of the hardware functionality and performance after calibration through measurements against the internal system references Verification of Path Performance Path performance is tested by two checkers matrix_st and catalyst_continuity_mi These checkers verify the independence of the force and sense connections and the integrity of the connections to the user area Note The HCU calibration is part of the DC calibration If an HCU is present calibrate dc performs both source and HCU calibration High Speed Digital Specification Support Summary schedule Daily e DC level and timing edge calibration e If autocalibration is enabled the system monitors the system
13. VHFCW channel card and DC subsystem via the measure bus VHFCW Traceability Catalyst Calibration Manual The final level of specification support can be used to periodically record full system performance to maintain specification traceability If desired an annual check can be performed by running the vhfcw_cv process This process uses external instrumentation that when supported with the vendor s recommended calibration procedures via traceable measurements provides a traceability path for the following e Absolute level accuracy e Step attenuation relative accuracy The vhfcw_cv process uses an HP 8902 measurement receiver to record the absolute sine wave accuracy performance at the level calibration point 10 dBm and the relative accuracy of the channel card step attenuators to record all error sources of sine wave amplitude accuracy The program guides the operator through the process with instructions that appear on the test system s user computer workstation A datalog of the VHFCW performance can be generated while running this process to record the results 129 To i cD E Very High Frequency Digitizer Specification Support Summary 130 Schedule Every 4 hours e Run autocalibration calibrate hfdig or job plan equivalent Weekly e Run vhfst in brief mode e Run catalyst_continuity_mi Monthly e Run vhfst in full mode Annually e Run the vhfd_cv process only required for traceability Equi
14. e Output current e Programmable DC baseline e Waveform resolution Frequency Range Dependent Specifications The remaining frequency range dependent specifications are supported by three levels of support procedures The highest level is the autocalibration processes of leveling and fine attenuation calibration These processes are invoked automatically by the system when required as with all system autocalibration functions The process of leveling is the calibration of the frequency response errors of the VHFAWG400 DIFF and VHFAWG1200 signal paths Here the user s operating point is leveled using a frequency response standard resident in the VHFAWG400 DIFF and VHFAWG1200 channel cards The absolute accuracy of this curve is also calibrated periodically by comparing an operating point against a temperature independent absolute level reference oscillator also resident on the VHFAWG400 DIFF and VHEFAWG1200 channel cards The fine attenuation calibration consists of a linearization of the fine attenuation circuitry in the VHFAWG400 DIFF and VHEFAWG1200 mainframes by comparing their attenuation curves against the precision step attenuators on the VHFAWG400 DIFF and VHFAWG1200 channel cards The other two levels of specification support procedures for the frequency range dependent specifications are used to record performance Again on the above recommended periodic basis the vhfst checker should be run This program checks all of the AC f
15. highlighted 6 Move the mouse slowly towards the right until a menu selection appears and then slowly downward until catalyst_continuity_mi is highlighted Release the mouse button The checker then loads into the station window 7 Move the mouse arrow to the top section of the station window Place the arrow on top of the RUN selection and press the left mouse button Checkers now runs Monitor the console window for error messages External Calibration for Internal References Level 3 Reference Calibration Overview AD412 Board The AD412 calibration reference board is the internal system calibration card for Catalyst It contains precise voltage and resistance standards for use in calibrating the DC subsystem and other hardware in the test system Overall DC subsystem accuracy and traceability are derived from this reference The AD412 reference achieves absolute accuracy by using a 2K x 8 bit nonvolatile EEPROM to store any measurable offsets of the various voltage and resistance references as measured with an external traceable standard IMAGE linear regression algorithms calculate the appropriate gain and offset terms from actual measurements on the hardware Reference error data stored in the EEPROM is also used The correction terms are digitally applied to DACs on the individual AD204 source control boards to adjust the output of the source for the greatest accuracy on a given range The voltmeter corrections are applied to th
16. or to perform the traceability process yourself To do the process yourself you need the following items to generate traceable performance data at the device interface These are not provided with the system Catalyst Calibration Manual Software Purchased separately External Fixtures Purchased separately External Equipment Provided by customer Execution Procedures Included in section Traceability of Test System Instruments Level IV Calibration of this manual D ij caD CED Calibration Services GFS Maintenance Support Level 2 This Teradyne service enables GFS maintenance engineers to execute preventive maintenance and or system failure analysis and repair support GFS Internal Reference Calibration Support Level 3 This Teradyne service enables GFS service engineers to perform the internal system reference calibration processes GFS Traceability Process Support Level 4 Specifications Traceability 8 Under this service the customer contracts with Teradyne to perform the field traceability processes Teradyne provides the software special fixtures all external equipment using rentals and the labor to execute the field traceability processes To verify any test systems accuracy specifications in this document read the Catalyst System Specifications manual pn 553 403 56 This is a controlled document and contains all test system accuracy specifications The figure Traceability Flow Block Diagram deta
17. Menu 3 If you chose the source side option from the menu above go to section Source Side Process If you chose the receive side option from the menu go to section Receive Side Process Source Side Process The program displays a menu listing all valid source channels for the UW6000 VNA selected as shown in figure Source Side Process Menu If a modulated source is present UWMS is appended to channels 1 and or 3 as appropriate 1 After performing the source side process on all channels enter x and return to step 2 of section UW6000 VNA Verification 2 Enter the desired option at the prompt SOURCE SIDE PROCESS No Description 1 Channel 1 2 Channel 2 3 Channel 3 UWMS 4 Channel 4 Enter a choice or X to Exit 1 2 1 Source Side Process Menu Note The menu shown would apply for a quad port VNA with a modulated source behind the second source 90 Catalyst Calibration Manual cx CED 3 Perform the connection instructions on the screen and press lt RETURN gt See figure Source Side Verification Setup 4 Ifthe test passed press lt RETURN gt and return to step 2 of section Source Side Process If the test does not pass recheck the connections press lt RETURN gt return to step 2 of section Source Side Process and repeat the test on this channel Note If a channel fails more than once you may need to exit and restart the program to rezero and recalibrate the power meter If the channel contin
18. Please Enter the following information Operator name Smith Model name of the DC Voltage Standard Datron 4910 Serial number of the DC Voltage Standard a53167 Last Calibration date of the DC Voltage Standard 1 May 2002 Model name of the 10K Resistor Standard Fluke 742A 10K Serial number of the 10K Resistor Standard 926331 Last Calibration date of the 10K Resistor Standard 17 May 2002 Entry Information Menu Display Making Connections The program instructs the operator to connect the PMM cables to the DIB Catalyst Calibration Manual 49 qi ij caD CED 50 Checking Jumper Wire Connections This portion of the program checks to see if the jumper wires are properly connected on the DIB 1 When the program displays Checking Connections the program first checks the A and B connections If those are properly connected the program then checks the C and D jumper wire connections If the connections are incorrect at either point the user has the opportunity to reconnect the jumper wires 2 If all the connections are correct the program displays The jumper wires are properly connected and the user is prompted to enter c to continue to the next step Measuring Offset in PMM Path Short all signals at the cable end not the DIB end to the shields by connecting all of the banana jacks together 1 This setup measures offset in the PMM path When the program displays Measuring OFFSET in PMM path make t
19. Run vhfst in brief mode e Run catalyst_continuity_mi Monthly Catalyst Calibration Manual cx CED e Run vhfst in full mode Annually e Run the vhfawg_cv process required only for traceability Equipment Required for Optional Traceability Process Refer to vhfawg 1200 cv and vhfawg400 diff cv Very High Frequency Arbitrary Waveform Generator Specification Support Description This section describes the specification support for the very high frequency arbitrary waveform generator VHFAWG400 DIFF and VHFAWG1200 Instrument Family The procedures to support these instruments are contained in vhfawg 1200 cv and vhfawg400 diff cv The VHFAWG400 DIFF and VHFAWG1200 specifications are described in the appropriate section of the Catalyst System Specification Manual pn 553 403 56 The specification support is broken up into two sections The first section includes support for the general specifications for the VHFAWG400 DIFF and VHFAWG1200 The second section supports the frequency range dependent specifications of sine wave level accuracy All specifications for the VHFAWG400 DIFF and VHFAWG1200 require that no hardware or firmware adjustments be made to ensure performance The frequency accuracies of the VHFAWG400 DIFF and VHFAWG1200 are derived directly from the RF synthesizer which serves as the time master clock for the system and thus the working frequency reference for the AC instrumentation Traceability of this reference is
20. The current measurement functions are calibrated by forcing voltage to the reference resistor The difference of the read value is compared with the current calculated from output voltage and reference resistor The apust checker program provides verification of the performance of the hardware functionality and performance after calibration through measurements against the internal system references In most cases the verification uses a set of values Verification of Path Performance Path performance is tested by two checkers matrix_st and catalyst_continuity_mi These checkers verify the independence of the force and sense connections and the integrity of the connections to the user area Advanced Time Measurement Subsystem ATMS Specification Support Summary Schedule Every 4 hours e Run autocalibration calibrate tms Weekly e Run tmsalst in brief mode Monthly e Run tmsalst in full mode Annually e Run atms_cat_cv optional to establish traceability Equipment Required for Optional Traceability Process Refer to atms cat cv Advanced Time Measurement Subsystem ATMS Specification Support Description Prior Conditions In addition to the specified system warm up and environmental conditions the following conditions must be met before running ATMS autocalibration e DC subsystem reference calibration must be valid for ATMS autocalibration to be meaningful Refer to DC procedure dcrefcal Procedure e Ti
21. a signed certificate of calibration that certifies the system has been fully calibrated by Teradyne prior to shipment 6 Catalyst Calibration Manual mm D cD CED Autocalibration Level 1 This is provided with every system purchased It automatically calibrates the test system instrumentation Software Provided with system External Fixtures None required External Equipment None required Execution Procedures See section External Internal Calibration and Traceability Procedures system Checkers Level 2 These are provided with every system purchased They verify proper operation of the functions of the instrumentation Software Provided with system External Fixtures Purchased separately required for mi checkers only External Equipment None required Execution Procedures See section External Internal Calibration and Traceability Procedures System Reference Calibration Processes Level 3 These are provided with every system purchased These give the customer the capability to calibrate including adjustment all internal system references Software Provided with system External Fixtures Purchased separately External Equipment Provided by customer Execution Procedures See section External Internal Calibration and Traceability Procedures Optional Traceability Processes Level 4 You can choose to purchase GFS Traceability Process Support Level 4 see section Calibration Services
22. and matrixst in syscheck full mode Quarterly e Run dcrefcal e Run dest in full mode e Run matrixst in full mode e Run catalyst_continuity_mi Equipment Required Table 6 HP 3458A Digital Multimeter 803 800 000 Level IIl Calibration Tool Kit DC Calibration Specification Support The DC specifications of the Catalyst advanced mixed signal test systems as described in the Catalyst Advanced Mixed Signal Test System Specifications pn 553 403 56 are maintained through the following programs 104 Catalyst Calibration Manual r CE cx CED Calibration Table 4 1 calibrate dc Autocalibration of DC subsystem DC reference calibration 90 days Performance Test Program Purpose Usage Interval dcst Instrument performance test 1 week brief mode 1 month full mode catalyst_continuity_mi Connection performance test 1 month 90 days Connection performance test 1 week 90 days Brief Summary of Each Program calibrate dc Autocalibration 1s a process wholly internal to the system that compares the actual values of the DC source or voltmeter against standards located on the AD412 reference cards The transfer function of the source forcing and metering functions are evaluated for e Gain and offset Voltage and current e Linearity Voltage only The transfer functions of the meter inputs vm1 vm2 and vmdif are evaluated for e Gain and offset Corrections to the transfer functions are calculated and stored in
23. by using CAL 58 CAL 59 or CAL 60 The CAL query obtains the temperature at calibration of the offset DCV and resistance references respectively See the HP 3458A Calibration Manual for more details Example Implications of Different Calibration and Operation Temperatures 52 Catalyst Calibration Manual qa CE caD CED Suppose that the temperature of the HP 3458 at calibration is 35 5 C and its temperature while operating inside the system is 43 5 C The difference between the two temperatures is 8 C clearly in excess of the 5 C limit What is the effect on the DCv accuracy of the PMM The net effect of the temperature difference can be determined by the following formula New_Spec Old_Spec Txcal Toper 5 Temp_Coeff where New_Spec New specification due to the difference in temperatures Old_Spec Original specification for operation within 5 C of calibration Txcal Internal temperature of the meter during external calibration Toper Internal temperature of the meter while inside the system Temp_Coeff Temperature coefficient as given in the Specifications Manual for operation outside the 5 C limit In the case of DCV accuracy the 1 year specification on the 1V range is DCV Accuracy 8 ppm of reading 9 ppm of range Consultation of the Advanced Mixed Signal Test System Specifications Manual pn 553 403 56 indicates that the temperature coefficients are 0 15 PMM of reading and 0 1 ppm of range
24. environment and will recalibrate as needed e If autocalibration is disabled recalibration should be manually invoked whenever the ambient temperature varies by more than 3 C Weekly e Run system check in brief mode e Run the catalyst_continuity_mi checker as a stand alone program using default test coverage Monthly e Run system check in full mode e Run the catalyst_continuity_mi checker as a stand alone program using default test coverage 112 Catalyst Calibration Manual qi CE caD CED Quarterly e Run the monthly programs e Run the catalyst_continuity_mi checker as a stand alone program enabling all tests Annually e Run the quarterly programs e Run the HSD calibration edge traceability hsd_edge_cv Equipment Required for Optional Traceability and External Calibration Process Refer to hsd_ edge cv The system warm up and environmental conditions outlined in the system portion of the Catalyst System Specification Manual pn 553 403 56 must be followed The DC subsystem and master frequency reference for the system must be in calibration HSD Calibration Explanation Time base accuracy is calibrated through the LA703 10 MHz reference calibration See LA703 10 MHz Master Reference Module Calibration Setup for more information DC AC Edge calibration is performed by running the hsd_st self test checker in full mode This verifies the channel specifications through internal connection
25. for this temperature difference From the preceding formula the new specification for DCV accuracy 1s DCV Accuracy 8 43 5 35 5 5 0 15 ppm of reading 9 143 5 35 5 5 0 10 ppm of range 8 8 5 0 15 ppm of reading 9 8 5 0 10 ppm of range 8 45 ppm of reading 9 3 ppm of range This is just an example of the DCV accuracy specification Each operation mode DC volts resistance and DC current has a unique set of temperature coefficients Refer to the Catalyst System Manual pn 553 700 63 for more information AC Calibration Catalyst Calibration Manual The pmm_xcal_mi program does not perform an external AC calibration of the PMM To do an AC calibration of the PMM the HP 3458 must be removed from the system and calibrated in a qualified calibration lab according to the HP 3458 calibration manual Since the AC calibration is relatively insensitive to temperature calibrating the ac portion of the HP 3458 outside of the system will not affect the PMM performance It is recommended that AC calibration be performed once every 2 years 53 To i aD zm Traceability of Test System Instruments Level IV Calibration Overview 54 This chapter describes how to execute the processes that produce data for traceability of Catalyst instruments Before executing the Level 4 process it is necessary to install the calibration verification software onto the test system Level 4 Cali
26. maintained by performing the recommended annual calibration of the system LA703 10 MHz frequency reference as described in section LA703 10 MHz Master Reference Module Calibration Setup General Specifications Catalyst Calibration Manual Traceability of the guaranteed specifications is provided via support programs for the VHFAWG400 DIFF and VHFAWG1200 The general specifications that are guaranteed excludes typical and nominal include the DC specifications of the instrumentation These specifications are completely checked to full specification using the DC subsystem in the vhfst checker program Traceability of these specifications is maintained by following the support procedure for the DC subsystem as described in DC Specification Support Summary The traceable DC subsystem is then used to record the DC performance of the VHFAWG400 DIFF and VHFAWG1200 To periodically record the results of this check and to aid in the record keeping for calibration the vhfst program can be run with the system datalogging function enabled to record the test results 125 qi ij caD CED 126 It is recommended that vhfst be run weekly in brief mode and monthly in full mode to ensure full functionality of the VHFAWG400 DIFF and VHFAWG1200 The vhfst program through the use of the DC subsystem is used to record the performance for the following VHFAWG400 DIFF and VHFAWG1200 specifications e Peak output voltage e Waveform range and resolution
27. matrix_st Test head device area catalyst_continuity_m1 External Standard to Internal Standard The DC reference module AD412 board provides 14 voltage reference levels and five resistor references These values are measured through external system connections using the dcrefcal program and the HP 3458A meter Deviations from nominal value are stored for use by the autocalibration routines and checker programs Current specifications for the 20 mA range are traceable via this reference The HCU source analog board and reference TJ151 00 contains precision 10002 109 and 1Q resistors that are used in autocalibration of the 200 mA and 2A ranges of the HCU The program hcurefcal is used to establish the traceability of these references Internal Standard to Instrument Performance Catalyst Calibration Manual Autocalibration compares the forcing and measurement functions of the instruments to the reference values Corrections to the transfer functions are stored in the executive software and used to modify the transfer functions at job run time Bounds checking is performed on the transfer function corrections but the overall calibration is performed open loop Verification of performance of the error correction is performed in hcust as explained in the following section Verification of Autocalibration and Instrument Functionality All voltage and current calibration uses a three point fit to a line using averaging for best accuracy
28. number 19 qi ij caD CED e Date of last calibration e Result of calibration passed failed or aborted Calibration Messages Messages are shown in the current station window or in the station window specified using the station option An example of calibration output is calibrate dc Starting calibration of the DC sources Data Retention Verified Reference serial number 851721 Last reference calibration on Sept 12 1989 Calibrating Voltmeter Calibrating Source 1 Calibrating Source 2 Calibrating Source 3 Calibrating Source 4 Calibrating Source 5 Calibrating Dut Source Calibrating Dut Source Calibrating Dut Source Calibrating Dut Source Calibration complete DC source calibration complete Aa w N e The file option sends a detailed summary of the calibration to a date and time stamped log file in the following directory image tester lt hostname of tester computer gt dccal_log_ lt DATE HR MN gt The verbose option sends this detailed summary to the station window Calibration in the Debug Display The calibration status including the date and time of the last calibration is shown in the DC debug display If a source failed the last calibration a double asterisk appears after the information line for that source Calibration Functions IMAGE includes several functions related to DC subsystem calibration One of these t1_dccal_subr 0 allows you to initiate calibration from a test program
29. s RF_HI RF_LO HI and LO cables to the appropriate DIB connectors according to the test head slot of the instrument under test Follow the on screen instructions for detailed cable connection Statements Connect the RF Power output of the HP 8657 to DIB input ISA using the N BNC adapter pn 359 164 00 and 4 ft cable pn 807 326 04 The program prompts the user to connect the HP 11722A power sensor to the HP 8902 RF Power connector for calibration After calibration the power sensor 1s connected to the DIB s N type connector Connect the system 10 MHz reference to the TIME BASE INPUT connector of the HP 8657 using the 15 ft cable pn 358 216 15 The 10 MHz reference is generated by the LA703 but can be accessed at the reference output of any PTS in the system as long as the reference signal daisy chain is not broken For more information about the location of the LA703 refer to the section LA703 Adjustment Procedure The GPIB Addresses for the external equipment must be set as follows HP 8902A 14 He OOSA O07 Checker Test Execution 1 2 3 4 Load and run the VHFD CV program The load file name is vhfd_cv load Follow the program instructions for instrument traceability and connecting the test setup as described in the section Checker Test Setup The Main menu has two options e Select option 1 Run All Tests to perform one full CV test set on one VHF Digitizer Runtime for this automated test proce
30. shorts of all signals provided to the test head The signals include matrix and DUT sources force sense and guard stored databits analog and digitial instrument connections and other miscellaneous signals For a detailed description review the Support Program Document SPD section of the catalyst_continuity_m1 tl source code located in the directory image ckr_bin 6 3 or the latest version The SPD is at the beginning of the file The matrixst checker program matrixst tests the performance of the DC connections through the basic DC matrix This includes testing for independence of all lines and pins force and sense connections and digital readback Catalyst Calibration Manual cx CED Traceability The accuracy of the HCU is based on a series of comparisons of instruments to references internal to the system These references can be compared to external standards establishing a path to nationally accepted standards This section describes the basic mechanisms that perform the comparison and verification of reference and instrument performance The path of comparison and verification is as follows e External standard to internal standards hcurefcal e Internal standard to instrument performance autocalibration calibrate dc e Verification of autocalibration and instrument functionality dest e Verification of autocalibration and instrument functionality hcust e Verification of path performance Internal matrix
31. than specified limits checked only for some instruments such as the HSD Power source drift checked only for some instruments such as the HSD System power cycle checked only for some instruments such as the DC subsystem Execution of the initialize command 17 To i Validity cD Giz If an instrument calibration is invalid the instrument cannot be used to make measurements If an instrument with invalid calibration is used the IMAGE software issues a run time error Run time errors can be ignored using set error ignore however measurements made are not valid Using autocal is the recommended method to keep a system calibrated during production testing This method is described in the following topic Autocalibration Note Autocalibration can be turned on only by using the autocal switch on the load command line or in a load file statement Autocalibration is not on by default nor can it be forced to invoke by default This is due to the number of test programs written before autocalibration was introduced Potential incompatibility with the functionality of autocalibration can result Autocalibration is turned off by using the calibrate noautocal command When autocalibration is turned on the state of every instrument used in the test program is checked before each test program is executed If an instrument s calibration has expired the instrument is calibrated before the test program runs When m
32. the calibration process must have the GPIB option installed and will be connected to the system via the IEEE interface Do not connect more than 15 devices to any one bus Connect one device for every 6 ft 2 meters of cable used Do not use more than 65 ft 20 m of cable to connect devices to a bus At least two thirds of the devices on the network must be turned on while the network is operating Connect the devices on the network in a star configuration Do not use loop or parallel configurations atms_Cat_cv Equipment Required Table 2 From the pn 803 804 00 Field CAL Tool Kit 804 785 00 Catalyst Multipurpose PV CV DIB From the pn 803 332 00 HSD and ATMS Traceability Tool Kit 800 473 00 ATMS Path Length Verification Cable Setup e Mount the LA785 DIB to the test head interface e Connect cable pn 807 326 01 from User Clock on the LA785 DIB to ISB on the strain relief bracket e Connect cable pn 807 322 00 to ISA on the strain relief bracket Checker Execution 1 Load atms_cat__cv load 2 Run the program following directions Catalyst Calibration Manual 55 qa ij caD CED Description This procedure measures the path length error of each tester channel with time measurement specifications Relative path lengths are measured by connecting an internal user clock signal to the TMS directly and also to the calibration cable The calibration cable provides connections to each tester channel via program dir
33. to the meter 2 Press auto cal button then the up arrow button This calibrates ALL modes 3 Press the Enter button to begin This takes approximately 11 minutes DO NOT make any connections to the meter until the process is complete Connect the test cable pn 804 096 00 from the HP meter to the REF1 and REF2 jacks These are located near the DC standards connectors on the standards verification panel e Sense High and Input High Shield to REF1 e Sense Lo and Input Lo Shield to REF2 e Meter guard to system ground Refer to section dcrefcal Procedure step 11 If running over IEEE connect the meter to the IEEE interface Set the meter address to 10 Instructions on how to set the meter address can be found in the HP 3458A meter manual If running manually set the meter as follows 1 Turn OFFSET COMP ON Press OFFSET COMP up arrow then Enter Catalyst Calibration Manual 2 3 cD Giz Set NPLC to 30 Press NPLC 30 then Enter Set the switch to OHMF blue button for resistance verification hcurefcal Procedure Catalyst Calibration Manual 1 2 3 4 5 6 7 8 9 10 11 12 13 Log in to a station window as checkers You may need a password Load the hcurefcal checker by one of two methods e Right click the checkers menu to load the checker listed under the Individual Maintenance and Installation menu e Type load CKRBIN hcurefcal load at the station window prom
34. value gt dut open closed pin 1 to xxx vih 2 5v vil 0 5 VOR 240 VOL 025 ioh 10 Ma iol 25ma vep 2 5v ppemu_v_force 0 5 pemu_v_meter 0 5 ppemu_i_force_2ma 2ma pemu_i_force_200ua 200ua ppmu_i_force_20ua 20ua pemu_i_meter_2ma 2ma pemu_i_meter_200ua 200ua ppmu_i_meter_2ua 2ua pemu i meter 200na 200na Where rangespec is one of the voltage ranges high middle low The default is high value is the systemwide voltage at which the PPMU is to be calibrated The voltage can be from 4 0V to 7 0V depending on voltage range If no ppmu_vsys lt value gt is specified the default values depend on the range as shown below 27 qa iis Note exa gt zm Table 1 vrange ppmu_vsys 5 0v middle 4 0V low 3 0V dut is the DUT relay on the HSD channel card The choices are open and closed The default is open When the DUT relay is open the channels are calibrated up to the DUT relay The calibration signals and voltages are not applied to the DUT pin to prevent DIB circuitry or device loading from causing calibration to fail When the DUT relay is closed the channels are deskewed up to the DUT pin connection The DUT relay can be programmed open if circuitry on the DIB interferes with the TDR path length measurements or if the DUT is in the socket when calibration is performed Autocalibration via the cal_set statement automatically opens the DUT relay when recalibration is exec
35. 16 Type 0 to exit the program The program must pass a BIN 1 36 Catalyst Calibration Manual Error To Standards Panel ohms Clear Back Space Recall Enter Terminals Sense 4 Wire z Front To Standards Panel Volts 1A 250V To System Ground DCREFCAL DVM Connections LA703 00 10 100 MHz Crystal Oscillator Overview Catalyst Calibration Manual The LA703 00 10 100 MHz reference and distribution module uses an oven controlled crystal oscillator OCXO 10 MHz standard to generate 10 MHz and 100 MHz reference signals These signals are distributed throughout the tester for use as references to the PTS synthesizer PACS II card cages digital card cages the time measurement system TMS and the trigger bus 37 qi ij caD CED The 10 100 MHz reference signals provide a 10 MHz and a 100 MHz reference for time and frequency synchronization The 10 MHz reference is used for calibrating all synchronous systems resources such as the synthesizer generators the TMS the trigger switchyard TSY and the UHF instrumentation options The 100 MHz reference is used for the Catalyst digital subsystem and PACS subsystem The LA703 00 100 MHz master clock reference is coherent with the 10 MHz reference source and has low phase noise minimum time jitter low skew and high s
36. 4 69 358 216 15 81 82 138 358 692 00 34 359 Part Numbers 359 083 00 75 359 083 01 138 359 147 00 138 359 149 00 75 359 164 00 81 82 138 359 256 00 138 465 Part Numbers 465 527 00 138 465 528 00 138 733 Part Numbers 733 108 00 84 138 800 Part Numbers 800 473 00 55 800 487 00 59 65 800 537 02 48 803 Part Numbers 803 332 00 55 803 369 000 75 803 800 00 44 76 104 108 803 804 00 55 73 76 803 806 00 73 76 803 808 00 57 64 804 Part Numbers 804 208 00 48 50 52 804 322 00 69 804 785 0 55 804 785 00 48 69 75 76 81 82 84 804 878 00 76 138 806 Part Numbers 806 166 00 96 108 807 Part Numbers 807 322 0 135 807 322 00 55 69 75 76 84 135 136 138 807 326 01 55 76 78 807 326 04 76 81 82 138 807 Part Numbers807 326 01 138 808 Part Numbers 808 723 00 64 901 Part Numbers 901 088 00 76 901 258 00 34 918 Part Numbers 918 242 000 76 138 A AD412 Board Reference Overview 31 Checker Execution 33 External Connections 33 Resistor References 33 Voltage References 31 Calibration Advanced Time Measurement Subsystem Level 1 Calibration 22 Analog Pin Units Level 1 Calibration 21 SIGIVALS RA AANAAA C cal_set statement 26 cal_set Syntax 27 Calibration 139 Calibration Levels 5 Level 1 Internal Autocalibration 6 Level 2 Internal External System Checkers 6 Level 3 External Calibration of Internal System References 6 Level 4 Optional Test System
37. 910 Type the value exactly as the program shows Wait for the program to display the next instruction screen 10V DC Cable Connections PMMAHI I1 Datron 4910 10V Average PMM A PMMALO 3 Datron 4910 Daton 4910 LO Average Daton 4910 LO Average PMM A meer Datron 4910 Daton 4910 Guardicase Datron 4910 DC Voltage Reference Standard WAVETEK Battery o Battery N Supply Line e O Temp Supply O Average Ow Ou Average Cell 1 d Make PMM connections at these points for step 1 of section 10V DC Calibration 10V DC Calibration Connections on the Voltage Reference Standard 10K Calibration Catalyst Calibration Manual 51 qi ij caD CED 1 When the program displays 10K Calibration make the connections as shown in table 10K Calibration Cable Connections between the PMM external calibration cable assembly pn 804 208 00 provided in the PMM CV Tool Kit and the Fluke 742A 10 K standard Make the connections using the banana plug end of the cables 2 Type c to continue the program Do not disturb the setup while the program is running After 5 minutes the program queries the operator for the value of the 10K resistor standard Type in the value that is displayed on the top of the Fluke 10K resistor standard Type the value exactly as the program shows 3 The program displays Starting PMM 10K Calibration Time to Completion is 12 Minutes 4 Follow the remaining instructions given in
38. C calibration is performed inside the system For an explanation refer to an overview of DC calibration An alternate DC calibration method can be performed outside of the system in a qualified calibration lab with certain considerations Refer to section Alternate DC Calibration AC calibration can be performed only outside of the system in a qualified calibration lab To achieve the highest level of DC performance Teradyne recommends performing DC calibration every 90 days It is also recommended that AC calibration be performed every two years The following sections describe how to run the pmm_xcal_mi program Before running pmm_xcal_mi the system s internal environment must be stable for 4 hours This means that test system power must be on and all covers in place for 4 hours before running this program Catalyst Calibration Manual cxi CED Catalyst Calibration Manual The pmm_xcal_mi program is loaded from the checker menu The entire program takes about 30 minutes to complete It does not produce a datalog output file It does produce a pmm_xcal_record file which contains information about the calibration process This file is stored in the current working directory 1f the current working directory already contains a pmm_xcal_record file the results of the new file are appended to the existing file The pmm_xcal_record file contains e The operator s name e The model name serial number and calibration date of the 10V
39. ELECTION MENU Testing LFAC DCC TH SLOT 3 Run Test Test Name SRC DIG N Amplitude Accuracy Y Y N DC Linearity Y Y N DC Offset Y Y Select All Tests Select No Tests Run SELECTED Tests or EXIT Enter a number to toggle between on and off on a given test Run Test N or Y Enter a letter to toggle between all on or off for all tests All run test N or Y Selection lt C gt runs selected tests Run Test Y or exits All Test N Enter a number or letter and press lt return gt 61 qm ME cD CED After selecting lt A gt and pressing lt return gt the Test Selection menu appears as follows TEST SELECTION MENU Testing LFAC DCC TH SLOT 3 R n lest Test Name SRC DIG lt 1 gt Y Amplitude Accuracy Y y lt 2 gt Y DC Linearity Y y lt 3 gt Y DC Offset y y lt A gt Select All Tests lt B gt Select No Tests lt C gt Run SELECTED Tests or EXIT Enter a number to toggle between on and off on a given test Run Test N or Y Enter a letter to toggle between all on or off for all tests All run test N or Y Selection lt C gt runs selected tests Run Test Y or exits All Test N Enter a number or letter and press lt return gt 12 After lt C gt is selected to run tests a message is displayed as the first test begins For example Running AC Amplitude Accuracy 13 All selected tests are run and results are put into the BIN at the end of program execution 62 Catalyst Calibration Manual qa CE caD CED
40. F T F A kad k di ha rF a sy 4 A t fi FE E i SA g ey i i Nie 1 lt I h 1 y ia o v F gas q f d TAN j S nd bo S _ E 5 yA A amp a L A 4 a ij h an m Po r mY i h y Ll d Ra 5 Pii k i q 7 o e F i 4 i i 1 1 d a 1 l d Y p r f d j l d ii 4 i i J f d r 1 d j pi j x i 3 L i r j y F Ted p of iE FW T T E Precision Multimeter Catalyst Field Calibration Level 1 Calibration 21 Process Summary 11 Estimated Time Matrix Level 1 13 R Estimated Time Matrix Level 2 13 Replacement of System Reference Estimated Time Matrix Level 3 9 13 14 Detail Matrix 12 PMM Offset Cable Connections S 50 System Check Programs 29 Specifications 8 Teradyne Tool Kits 14 System Reference Traceability 8 Calibration Products 7 User s Responsibility 8 Replacement of 9 System References Internal 2 y Tables 10 DC Cable Connections 51 10 V DC Cable Connections 50 Calibration Levels 5
41. Instrument Traceability Processes 6 Calibration Process Overview 2 Calibration Levels 5 External Calibration of Internal System References 6 Internal Auto Calibration 6 Internal External System Checkers 6 Optional Test System Instrumentation Traceability Processes 6 External System Calibration Path 4 Calibration for Traceability of Test System Instrumentation 4 Calibration of Internal References 4 system Calibration Path 2 Internal System References 2 Internal Transfer Standards 3 Internal Test System Instrumentation 3 Calibration Products and Services 6 Calibration Products 6 Autocalibration 7 Optional Traceability Processes 7 System Calibration Certificate 6 System Checkers 7 System Reference Calibration Processes 7 Calibration Services 8 GFS Internal Reference Calibration Support 8 GFS Maintenance Support 8 GFS Traceability Process Support 8 catalyst_continuity_mi Procedure 30 Equipment Required 30 Loading and Running 30 Checkers 140 AD412 Checker Execution 33 Calibration Products 7 Internal External System 6 LA703 Checker Execution 40 System Check Procedure 29 SIGIVALS RA AANAAA cc CE D DC Subsystem Level 1 Calibration Calibration Functions 20 Calibration in the Debug Display 20 Calibration Messages 20 dcrefcal Equipment and Setup 33 Equipment Required 34 HP3458A Meter 34 Meter Calibration 34 Standards Verification Connection 34 Procedure 35 Def
42. LF digitizer mainframe As with the PLF source these constants are stored locally on the PLF digitizer mainframe board and are applied automatically during normal use of the PLF digitizer The above specifications are all that is required to periodically correct for any known error sources of the PLF source and PLF digitizer that are time or temperature dependent The other two levels of specification support are to record the performance of the PLF source and PLF digitizer frequency range dependent specifications The first is the plfalst checker which should be run on the recommended basis This program checks all of the AC frequency range dependent specifications by connecting each precision low frequency source to each precision low frequency digitizer via the test head THADS bus In general the plfalst program checks specification performance to test limits that equal the summation of the PLF source and PLF digitizer specifications Since in most cases the PLF source and PLF digitizer have very similar performance the test limits for these tests in plfalst is approximately twice the instrumentation specification Catalyst Calibration Manual cia CE caD CED PLF Traceability The final level of specification support can be used to periodically record system performance to maintain specification traceability If desired an annual check can be performed by running the cat_plf_cv process This process uses an external HP 3458A multimete
43. LOT 4 Run Test Test Name SRC DIG Y Amplitude Accuracy Y Y Y DC Linearity Y Y Y DC Offset Drift Y Y Y DC Offset Y Y Select All Tests Select No Tests Run SELECTED Tests or EXIT 67 qi ij caD CED Enter a number to toggle between on and off on a given test Run Test N or Y Enter a letter to toggle between all on or off for all tests All run test N or Y Selection lt C gt runs selected tests Run Test Y or exits All Test N Enter a number or letter and press lt return gt 13 After lt C gt is selected to run tests a message will be displayed as the first test begins For example Running AC Amplitude Accuracy 14 All selected tests are run and results are placed in the BIN at the end of program execution HP 3458 Digital Multimeter PN 358 692 00 GPIB Address 10 BNC F Banana O Q O OQO O O PN 358 216 04 Cable BNC M BNC M PN 800 487 00 PN 800 487 00 PLF SRC PLF DIG Slot Slot J12 J10 UUU LL L U o DIB PN804 723 00 Pin 1 on cables and DIB connectors is marked PLFCV Catalyst Calibration Verification Connections 68 Catalyst Calibration Manual qa CE caD CED tjd_cv Equipment Required Table 7 Programmable Signal Generator From the pn 803 800 00 HSD Catalyst
44. Level III CV Kit 358 216 04 4ft 50 ohm Coaxial Cable From the pn 803 804 00 Multipurpose CV DIB Kit 804 785 00 Multipurpose CV DIB 804 322 00 Twisted Pair Cable Description This procedure measures both the period and edge jitter of the time jitter digitizer It also ensures that the device is functionally capable of all ranges of operation The two time stamping devices are checked for their reliability over a range of frequencies and under different input front ends Setup and Execution Catalyst Calibration Manual Load the test program by entering the following command load thd cv load Install the LA785 DIB onto the test head Run the program Select option 1 Run all tests Connect cable pn 358 216 04 to DIB IB as instructed by the test program Connect cable pn 807 322 00 to DIB IIA as instructed by the test program During testing the program instructs the user to connect the other end of cable pn 807 322 00 first to Channel H and then to Channel D For a detailed description of connecting to the DIB two pin headers see Appendix A Device Interface Board DIB Interfacing Details All tests must pass Bin 1 69 nm dij cD CED PTS 500 Signal Generator GPIB Address 6 E o PN 358 216 04 BNC M BNC M DIB Strain Relief Bracket ma 11A f I1B me aie PN 807 322 00 Slot Header Inputs ma
45. Programmable DC baseline e Overcurrent alarm detection threshold 119 o i 120 PLF Digitizer cD Giz e Input voltage ranges e DC baseline removal e Differential input CMRR e Waveform resolution e Input impedance e DC offset Frequency Range Dependent Specifications The remaining frequency range dependent specifications are supported by three levels of support procedures The highest level is the plfsre and plfdig autocalibration software that is resident with the system Like other system autocalibration procedures these are automatically invoked by the system when required The plfsre autocalibration is used to periodically adjust the linearity of the 20 bit sigma delta D A converter in the mainframe This is done by making a mainframe connection between the PLF source and the PLF digitizer Calibration circuitry exists on the PLF source mainframe board such that only the uncalibrated performance of the PLF digitizer is required for the PLF source autocalibration to execute successfully The linearity correction constants generated from this procedure are stored in a local memory on the PLF source mainframe board and are applied automatically during normal use of the PLF source PLF digitizer autocalibration uses a similar strategy The PLF source and PLF digitizer are connected locally in the mainframe Correction constants are generated for the linearity and internal loop gain of the sigma delta A D converter on the P
46. Read the specification support summary section for relevant instruments This provides the following information for each instrument e Calibration schedule e Calibration equipment e Description of the instrument calibration path for key instrument specifications e Description of the instrument traceability path for key instrument specifications Calibration Process Overview Internal System Calibration Path To fully understand multilevel calibration it is important to first understand the test system architecture There are three categories of instrumentation as shown in figure Internal Calibration Path e Internal system references e Internal transfer standards e Test system instrumentation Internal System References These internal references are not directly accessible to the user as system instrumentation Rather they serve as the lowest level of internal reference They may be used to generate a master signal during system usage LA703 10 MHz reference or for self test and autocalibration purposes AD412 DC reference These references have defined drift resulting in the need for periodic adjustment Some of these references are base system references used by multiple instruments while others are references dedicated to a specific instrument type Dedicated tests are present only when the corresponding instrument is present in the system 2 Catalyst Calibration Manual cx CED Internal Transfer Standards These ins
47. Use this mapping to find the correct connection for the standalone source CV Source slot 19 appears in the same position as VNA slot 18 channel 2 Source slot 20 appears in the same position as VNA slot 18 channel 3 1 If the test passed press lt RETURN gt and go back to step 2 of section UW6000 VNA Verification If the test did not pass recheck the connections press lt RETURN gt and go back to step 2 of the section UW6000 VNA Verification and repeat the test on this source 866 533 000 Microwave CV DIB GPIB Bus Sot 18 T HP Meter Address 13 Cd HP E Series W Power Meter E ower Meter ifs 0X0 LOO Ld LI Sensor Cable 866 532 00 Catalyst Microwave CV DIB Slot 15 Slot 18 HP E Series Power Sensor Adapter N f to SMA m Note Use 866 533 00 prior to SDF upgrade Source Side Verification Setup 92 Catalyst Calibration Manual dois GIE cul CED 866 533 00 Microwave CV DIB Slot 15 Slot 18 System 10 MHz Master Clock HP 83623 Sweeper 10 MHZ I T m j ac Lp gt I 866 532 00 Catalyst Microwave CV DIB Slot 15 Slot 1g GH OQO 4 ft Coaxial Cable SMA f to SMA m with reinforced ends Note Use 866 533 00 prior to SDF upgrade Receive Side Verification Setup Catalyst Calibration Manual 93 eis CIE cI CEB 866 532 00 Catalyst Microwave CV DIB Slot 15 AC on ee 3X3 OAUTH Oo Note Use 866 533 00 prior to SDF
48. _interval time If you do not enable autocalibration calibrate the VHFAWG by using one of the following three methods e Type the following command in the station window to immediately calibrate all VHFAWG in the test system regardless of the last calibration calibrate vhfawg Catalyst Calibration Manual qi CE caD CED e To calibrate all VHFAWG in the test system Start vatawg cal e To calibrate a specified VHFAWG in the test system pin ID isthe pin connected to the VHFA WG that you want to calibrate The default VHEFAWG for a pin is the VHFAWG assigned to the pin as a channel in the pinmap start pin lt pin ID gt vhfawg cal Very High Frequency Continuous Wave VHFCW Source Calibrate all very high frequency continuous wave VHFCW sources in the test system using the command calibrate station vhfcw where station specifies the test station for VHFCW calibration and vhfcw is the switch for VHFCW calibration If you load a test program in IMAGE V4 0 or higher using the autocal option to the load command all VHFCW calibration is performed automatically To calibrate the VHFCW from within your test program use Start pin lt pin ID gt vhfcw cal The above statement starts calibration for the default VHFCW source assigned to each pin in the lt pin ID gt The default VHFCW source for a pin is the VHFCW source assigned to the pin as a channel in the pinmap The following statement starts cali
49. absolute amplitude point is the known reference point from which all the source side specifications of the UW6000 Microwave Option are derived The HP 83623 Synthesized Sweeper is used to record the receive side measuring specifications that are referenced at 0 dBm A datalog of the uw6000_cv results can be generated while running this process 134 Catalyst Calibration Manual cx CED Appendix A Device Interface Board DIB Interfacing Details LA785 DIB Interface Description The LA785 Multipurpose CV DIB provides high performance connection access to all analog and digital test system instrumentation All signals are connected from the test head cardlets to the Device Interface using a common 2 pin header interface Connection to the 2 pin headers are made using a high performance coaxial SMA to 2 pin header cable pn 807 322 00 Ground Signals The LA785 DIB design is such that all ground signals are common The base DIB printed circuit board design sections grounds into analog digital and test head ground plane signals Jumper connections are then installed on the board that ties all ground planes together Analog Instruments Analog instrument interfacing is accomplished on a slot basis with each slot offering eight channels The channels are identified as A to H Each channel has an accompanying ground signal For more information on ground signals see section Ground Signals The figure LA785 Analog Channel Interface Pin
50. ame gt where lt file name gt is the name of your test program Once autocalibration is activated IMAGE automatically calibrates the PLFD every 4 hours Use the tl_iplfd_cal_interval function to change the calibration interval from 4 hours to some other time interval For example the following function call changes the calibration time interval for all PLFDs to 8 hours tl_plfd_cal_interval 60 60 8 interval units are seconds To calibrate a PLFD from within your test program execute the following ITL statement Start plidig cal To calibrate a specific PLFD channel card use Start pin lt pin_spec gt plfdig cal To calibrate all PLFDs in the tester enter the following command in a station window calibrate station plfdig Catalyst Calibration Manual 23 qi ij caD CED 24 Precision Low Frequency Source PLFS Precision low frequency sources PLFSs must be calibrated Use one of the following statements or autocalibration An attempt to start sourcing an uncalibrated PLFS results in a run time error Calibrate the PLFS using the command calibrate station plfsrc where station specifies the test station for PLFS calibration and plfsrc is the switch for PLFS calibration You can also calibrate the PLFS from within a test program Start calibration using the statements start lt pin ID gt plfsrc cal and start plfsrc cal where lt pin ID gt is a constant a pin number a pin name a pin li
51. as set pmm cal mode all Cal Once Calibrate the meter when absolute accuracy is necessary Calibrate all PMM modes once every 24 hours Use the function t 1_pmm_dump_cal_times to determine the time of the last calibration for dc ac and ohms Advanced Time Measurement Subsystem ATMS Calibrate the advanced time measurement subsystem ATMS by using the command calibrate station tms This command calibrates the e Interpolators e Local clock e Threshold D A converters e Input channel path lengths Catalyst Calibration Manual qi CE caD CED To perform full calibration on the ATMS from within a test program run DC calibration using the following statement start tms cal full Use the following statement to calibrate only the interpolators and local clock start tms cal If calibration fails you must recalibrate or initialize your test system To initialize your test system select Initialize from the IMAGE gray area pop up menu or type initialize in a station window This command returns all ATMS calibration values to their defaults Precision Low Frequency Digitizer PLFD The most efficient method of precision low frequency digitizer PLFD autocalibration is to let IMAGE do it automatically at regular time intervals This method is known as autocalibration To activate autocalibration simply include the autocal switch when loading your test program In the station window type load autocal lt file n
52. ath from the channel to the DIB is checked by the catalyst_continuity_mi_checker This verifies continuity of the signal and ground connections Edge specifications The performance of an individual channel 1s verified by the Level II checkers A series of measurements is made using the channel s driver and receiver These timing tests verify the edge performance against the system s frequency standard Timing Specification The performance is verified by the Level IV process The timing edge specifications are calibrated by the calibrate hsd process This uses the internal TDR subsystem and relay tree It aligns all the edges within the HSD subsystem to each other The performance of the edge calibration process is checked using external instrumentation This verifies that the process is aligning the edges in the system properly The process steps a digitizing oscilloscope from the output of a reference channel to all other channels measuring the relative skew of each channel to the reference channel The final result is a picture of the skew between all the channels in the system This result is then tested against the accuracy specification This process also verifies the dynamic performance of the channel path The accuracy of the DC specifications is based on a series of measurements of each channel s performance against the DC subsystem The accuracy of the DC subsystem is based on measurements of its performance against the DC sy
53. ator case Due to the location of the screw an access hole is provided in the top rear mainframe bar A special longhandled nonconductive screwdriver has been supplied The screwdriver is located below the 10 MHz and 100 MHz outputs on the service side EMO panel 1 Remove the plastic screw 41 qi ij caD CED 2 Adjust the screw clockwise 1f the frequency is too high Adjust the screw counterclockwise 1f the frequency is too low DO NOT turn the screw more than 1 4 turn without verifying the change at the counter 3 Replace the plastic screw Replacing the screw is important because the cover allows the oscillator to maintain proper temperature regulation Hand tighten the screw Do not overtighten 4 Verify the 10 MHz output a final time If you are running the automated process the program performs this task Note Once the HP 53131A counter is placed in external reference mode it is necessary to reset the counter to its internal reference Do this by cycling the ON OFF button on the front panel of the counter The manual reference calibration can then be repeated The automated IEEE version of this procedure does not require this action because of a slightly different test implementation 42 Catalyst Calibration Manual Cud GIE cul CED 10 MHz Frequency Adjustment a Crystal Oscillator D4 D1 Remove white cover to access adjustment screw 10 100 MHZ Ref Distribution Module System Frequency Refere
54. bration Verification Software Installation 1 2 3 4 5 Log 1n to a command tool or station window as checkers Install the calibration verification CD into the CD drive Change the working directory to the CD as shown below ca ecdrom cdromo Execute the install_cv script by entering the following command install cv This command puts the calibration verification software into a directory called checkers CV CAT X Y where X Y is the released version of current software such as 6 2 6 3 and so on The directory structure is created if one does not already exist under the checkers directory The Calibration Verification software installation is now complete Level 4 Software Program Loading Perform the steps below when executing any of the level 4 calibration processes 1 2 Log in to the station window under test as checkers Move to the directory containing the calibration verification software by entering the following command cd checkers CV CAT X Y Where X Y is the released version of current software such as 5 3 5 4 and so on Catalyst Calibration Manual cx CED 3 Load a checker program by highlighting the LOAD button Pull right to view a list of checkers available and load a checker program by highlighting it Alternatively programs can be loaded by entering Load checkername load where checkername is the name of the checker to load Note All external instruments throughout
55. bration and Traceability Procedures Internal External System Checkers Level 2 catalyst_continuity_mi Procedure 30 Level 1 16 Advanced Measurement System 22 Analog Pin Units 21 DC Subsystem 19 High Current Unit 26 High Speed Time Digital Channels 26 High Speed Sampler 26 Precision Low Frequency Digitizer 23 Precision Low Frequency Source 24 Precision Multimeter 21 VHF Arbitrary Waveform Generator 24 VHF Continuous Source 25 Level 2 28 catalyst_continuity_mi Procedure 30 System Check 28 System Check Procedure 29 Wave Level 3 31 dcrefcal Procedure 35 Equipment and Setup for dcrefcal 33 Equipment and Setup for hcurefcal 44 Adjustment Procedure 41 LA703 Calibration Setup 39 LA703 LA703 00 XTAL Oscillator Overview 37 Overview of pmm_xcal_mi 46 pmm_xcal_mi Procedure 48 Reference Calibration Overview 31 Overview 16 96 F Figures 10V DC Calibration Connections on the Voltage Reference Standard 51 Calibration Setup Message 36 Catalyst HSD Calibration Verification Connection 77 Catalyst Mainframe Service Side 43 Checker Display 49 Current Constants Menu Display 46 DCREFCAL DVM Connections SIGIVALS RA AANAAA 37 Level 1 Calibration 26 Entry Information Menu Display How to Use this Manual 2 49 Internal Calibration Path 3 Internal Calibration Path with First Level External Link 4 System Check Sub Menu 30 Traceability Flow Diagram 9 H hcurefcal 44
56. bration for the VHFCW source and channel specified start Slot lt int gt schan lt L 2 gt vwhtcw Cal The following statement starts calibration for all VHFCW sources in the test head start vhfcw cal Catalyst Calibration Manual 25 qi ij caD CED 26 High Speed Sampler HSS To calibrate the High Speed Sampler HSS use the following function call ctl Nitec ramp cal This function inspects the sampler timing and generates a table of calibration constants The sampler uses the calibration constants to improve the accuracy of the strobe_delay for step and fixed modes of operation In sweep mode the sampler uses the calibration constants to improve the accuracy of sample to sample timing You must calibrate the time measurement subsystem and the DC subsystem before calibrating the sampler High Current Unit HCU The high current unit HCU calibration is performed in the DC subsystem calibration Refer to Section DC Subsystem for information on the DC subsystem calibration High Speed Digital HSD Channels IMAGE automatically calibrates the test system using the autocal switch when the test program is loaded The autocal switch causes IMAGE to automatically calibrate the test system as needed after the first run if the test system passed the test IMAGE repeats the calibration when the temperature changes more than 3 C 37 4 F or 1f it recognizes a change in the high speed digital HSD subsyste
57. cable and the BNC to BANANA adapter Refer to the figures LFAC Cable Connections and Catalyst LFACCV Calibration Verification Connections Not to Scale Press lt Return gt when ready to go to the next screen The program then prompts for a serial number of the external meter Enter the serial number of the HP 3458A meter and press lt Return gt The program then prompts for the calibration due date of the HP 3458A meter Enter the calibration due date of the meter and press lt Return gt If the system has more than one set of LFAC instrumentation the user is prompted to choose one of each to be used during the CV process The test head slot location of the channel card for the instrument is listed in brackets after each choice For example Choose LFAC Source in TH Slot to test lt l gt 3 lt 2 gt 20 ENTER OPTION and lt return gt Choose LFAC Digitizer in TH Slot to test lt i gt 3 lt 2 20 ENTER OPTION and lt return gt If only one instrument is in the system a choice is not offered the program goes directly to the connection prompts Catalyst Calibration Manual cx CED Catalyst Calibration Manual 10 A prompt is displayed with specific test head slot connector labels for connection of the PLFCV DIB port slot jumper connections pn 800 487 00 For example if the LFAC channel card is in slot 3 of the test head the following prompt appears Connect the LFACSRC in test head slot 3 t
58. catalyst_continuity_mi Monthly e Run lfacst and lfac_ams_st in full mode Annually e Run cat_lfac_cv process required only for traceability Equipment Required for Optional Traceability Process Refer to cat lfac cv Catalyst Calibration Manual 115 qi ij caD CED 116 Low Frequency AC Specification Support Description This section describes the specification support for the Low Frequency AC LFAC source and digitizer instrumentation The procedure to support these instruments is contained in section External Calibration for Internal References Level 3 The LFAC source and digitizer specifications are described in the Catalyst System Specification Manual pn 553 403 56 The specification support is broken up into two sections The first section includes support for the general specifications for the LFAC source and digitizer listed in section 1 of the LFAC source and LFAC digitizer sections of the system specification manual The second section supports the frequency range dependent specifications of sine wave amplitude accuracy and the DC waveform linearity specifications of frequency range 1 General Specifications All specifications for the low frequency AC LFAC instrumentation require that no hardware or firmware adjustments be made to ensure performance The frequency accuracy of the low frequency instrumentation is derived directly from the system RF synthesizer which serves as the time master clock for the sy
59. ce can be generated while running this process to record the results Very High Frequency Continuous Wave Specification Support Summary Schedule Every 4 hours e Run autocalibration calibrate vhfcw or job plan equivalent Weekly e Run vhfst in brief mode e Run continuity checks Monthly e Run vhfcwst in full mode Annually e Run the vhfcw_cv process only required for traceability Equipment Required for Optional Traceability Process Catalyst Calibration Manual Refer to vhfcw cv 127 qi ij caD CED 128 Very High Frequency Continuous Wave Specification Support Description This section describes the specification support for the very high frequency continuous wave VHFCW The procedure to support this instrument is contained in vhfcw_cv The specifications are described in the appropriate section of the Catalyst System Specification Manual pn 553 403 56 The specification support is broken up into two sections The first section includes support for the general specifications for the VHFCW The second section supports the frequency range dependent specifications of sine wave level accuracy sine wave harmonics and sine wave spurious responses All specifications for the VHFCW require that no hardware or firmware adjustments be made to ensure performance The frequency accuracy of the VHFCW is derived directly from the RF synthesizer which serves as the time master clock for the system and thus is the
60. ction choices Specifications traced are e AC amplitude accuracy e Linearity e DC offset Equipment Required Table 3 803 808 00 Catalyst PLF LFAC Tool Kit External Equipment Required HP 3458A multimeter with GPIB option Address 10 Runtime Summary Total run time for one LFACSrc and LFACDig pair is approximately 21 minutes Table 4 AC Amplitude Accuracy DC Offset Checker Execution Use the procedure to execute the Catalyst LFAC traceability process 1 Load cat_lfac_cv into the station under test by entering the following command load cat_lfac_cv load 2 Run the program and follow all instructions and user prompts displayed This series of instructions and prompts appears in the station window The following message appears only for as long as the program takes to set up the array processor Catalyst Calibration Manual 57 T i Note 58 exa gt zm Starting LFAC Calibration Verification Process The program then prompts the user to load the DIB assembly and make all external instrument setup connections 3 4 5 6 7 8 9 Load the LA723 DIB assembly on the test head Connect the HP 3458A multimeter to ac power Connect the HP 3458A multimeter to the system GPIB port with a GPIB cable Make sure the HP 3458A GPIB address is set to 10 Connect the HP 3458A meter input 2 wire HI and LO to the LA723 BNC jack labeled BNC1 EXT MTR using the BNC to BNC
61. d may be test system instrumentation Internal Calibration Path with First Level External Link Catalyst Calibration Manual cx CED Calibration Levels To gain an understanding of the calibration process options it is important to identify the four levels of calibration The table Calibration Levels defines which levels are required to maintain system specification performance and how system specification traceability 1s established Calibration Levels Level Calibration Type Purpose Traceability Performance Level Internal autocalibration Adjust system instrumentation via internal via Level III Required standards Level Il Internal and external Verify system performance and functionality via Level III Required system checkers Provide full verification against specifications as permitted by internal paths Level Ill External calibration of Measure and adjust internal system references via external Required internal system using traceable external equipment instrumentation references Level IV Optional device Provide additional traceability via a direct path via external Optional interface performance from the system instrumentation device instrumentation traceability interface to an external reference standard The higher the level the more comprehensive the calibration provided that all lower levels are also maintained Teradyne recommends that levels 1 2 and 3 be implemented to maintain system s
62. e 3 Adjust gate time to one second Use the arrows to the right of the display 4 Press the ENTER button near the arrows to confirm the gate time 5 Frequency and Ratio e The counter displays 10 MHz with the appropriate accuracy e The counter must display 10 MHz 3 0 Hz for the LA703 to meet system specifications e The LA703 must be adjusted if the counter displays an output not within 10 MHz 0 5Hz This will guarantee that the LA703 will remain within specification for the next year e Ifthe LA703 requires adjustment follow the instructions in section Section LA703 Adjustment Procedure 100 MHz Reference Verification Note The 100 MHz reference output is created from the 10 MHz signal 1 Connect the 100 MHz output to the channel input on the counter 2 Connect the 10 MHz output on the EMO panel J8 to the external reference input of the HP 53131A located on the rear panel 3 The counter display MUST indicate 100 MHz 0 1Hz The 100 MHz output is a direct product of the 10 MHz output multiplied by 10 This relationship is verified by using the LA703 10 MHz output as the timebase reference input to the HP 53131A and measuring the 100 MHz output LA703 Adjustment Procedure Catalyst Calibration Manual The adjustment of the LA703 oscillator reference 1s accomplished via an adjustment screw located on the right side of the LA703 module The screw is accessed by removing the plastic exterior screw on the oscill
63. e bus At least two thirds of the devices on the network must be turned on while the network is operating Connect the devices on the network in a star configuration Do not use loop or parallel connections GPIB Addresses must be set as follows HP 83623 19 HP E4418 13 Runtime Summery Process Run Time Source Level Accuracy 10 mintues UWSRC CC 12 minutes UWPORT CC quad port 24 minutes UWPORT CC octo port Receive Level Accuracy 30 minutes UWPORT CC quad port 60 minutes UWPORT CC octo port Test Execution Type load uw6000_cv load and press lt RETURN gt to load the uw6000_cv load program 1 Type run and press lt RETURN gt Note A menu is displayed listing the UW6000 options in the system The UW6000 Modulated Source Option is indicated by UWMS appended to the option name The Modulated Source Amplitude Accuracy tests are automatically run during this process This process should be performed on all options UW6000 CV Option Selection Menu UW6000 CV Select an Option to Verify No Description 1 UW6000 VNA UWPORT Module Slot 15 SN 0211c50 2 UW6000 Source UWSRC Module Slot 19 SN 024db30 UWMS 3 UW6000 Source UWSRC Module Slot 20 SN 01d8a8d Enter a choice or X to Exit 1 3 1 Catalyst Calibration Manual 87 D ij caD CED Note This menu shows a system with one UW6000 VNA option two UW6000 stand alone source options and one UW6000 modulated source behind sou
64. e raw A D value read after a measurement The data is stored in the EEPROM using Teradyne s supplied procedures and an external DVM The AD412 is accessed internally through matrix pins 1 2 and 3 or externally via J3 or J4 20 pin connectors on the flipper edge of the board The AD412 has other circuitry to allow connection of nonmatrix V I sources to matrix pins 1 and 3 These DC sources can now be calibrated since they can be connected to the matrix much like the other matrix sources An ID PROM 1s provided to store the standard information about the board Board number serial number and revision date are encoded and can be read back by the software as a serial number for the board This is one of many requirements of traceability to national standards Voltage References Catalyst Calibration Manual 31 qm ME cD CED The voltage references are derived from a 6 95V heated zener reference Amplification and inversion provide 10V that is used as the main board reference A number of various gains are applied to the main reference to provide the proper output voltages The voltage references are available under software control to the test system on matrix pin 1 32 Catalyst Calibration Manual cx CED Resistor References The resistor references are made up of high precision resistors They are switched in and out with relays and are arranged in a four wire kelvin configuration The low side of the resistors is connected to g
65. e synthesized sweeper information if the UW6000 VNA Option was selected from the menu 11 Enter the serial number of the HP 83623 synthesized sweeper 12 Enter the calibration due date of the HP 83623 synthesized sweeper 13 If the HP 83623 synthesized sweeper has been flattened enter Y Otherwise enter N and follow the instructions on the screen See figure Setup for Flattening the Synthesized Sweeper for setup connections System 10 MHz Master Clock GPIB Bus erie HP 83623 Address 19 C a ees 50 og oo fog L _ _ _ __ _ gt J HP E Series Power Meter Address 13 20000 00000020000 2222 N B ar E 1 20m O 4 ft Coaxial Cable SMA f to SMA m with reinforced ends HP E Series Power Sensor Adapter N f to SMA m Setup for Flattening the Synthesized Sweeper 14 If a UW6000 VNA Option was selected go to section UW6000 VNA Verification 15 If a UW6000 Source Option was selected go to section UW6000 Stand alone Source Verification Catalyst Calibration Manual 89 nm ME cD CED UW6000 VNA Verification The program will display the UW6000 VNA CV menu as shown in figure UW6000 VNA CV Menu 1 After performing both options enter x and return to step 3 of section UW6000 CV Option Selection Menu 2 Enter the desired option at the prompt UW6000 VNA CV Process No Description 1 Source Side 2 Receive Side Enter a choice or X to Exit 1 2 1 UW6000 VNA CV
66. ection to the operator Time measurements are then made between the internal and external connections The relative path lengths are compared with each other to determine the path length errors of each channel LA785 DIB Information The program guides the operator through the probing of tester channels with time measurement specifications Analog Channel Designation The program specifies the channel s location in the following format Na where e Nis the number 2 23 that specifies the channel s test head slot e is an alphabetic character a b c d that specifies the channel Example e See figure 17b is the designation for the header pin in the 17th slot channel b See the figure table ATMS Calibration Verification Connection Diagram for a connection diagram For a detailed description of connecting cables to the two pin headers see Appendix A Device Interface Board DIB Interfacing Details DIB Strain Relief Bracket PN 807 322 00 15A PN 807 326 01 Miili I Slot Header Inputs DIB PN 804 785 00 ATMS Calibration Verification Connection Diagram 56 Catalyst Calibration Manual iam CE caD CED cat Ifac_cv This procedure describes the field traceability process cat_lfac_cv for the low frequency AC instruments LFAC LFAC Source LFACSrc and LFAC Digitizer LFACDig The cat_lfac_cv process is menu driven The user is prompted for all fixture connections instrument connections and test sele
67. el and troubleshoot the problem Check the meter selection and setup before replacing the TJ151 00 If y was the response the current table was stored in the errorlog file named hcu_refcal log which resides in the image tester lt host name gt cal directory The stored table is used in the HCU calibrator and checker The hcu_refcal log file holds measured reference error data but this data should be used only for the referenced HCU board So if that board is changed the logged data becomes useless In that case enter menu selection 3 to erase data After the selection the confirmation message 1s displayed If you really want to erase the logged data enter y and press lt return gt Otherwise enter n and press lt return gt or just press lt TOLU Type 0 to exit the program The program must pass a BIN 1 45 46 ed ep yl eel ep beck J stp eji ouer ty salji lalt eji winy edo et Foard Fepe Wowk vrr kord peri Cela aul eb Werat be Itr inte Hele cede ela Ll Ie I Ar I Carel e aal Le cut Pint eyer vere I Jahier gt E PUT Tt il i iy i ES 5s TE 2 pE At ar OP AS Ma las HE L Bplla to C32EI Ware alis egre rr gt F ipi ot apr pedir L Ubea ulian iee JULES FE gt S tmp te haope Line oe h kd fe Current Constants Menu Display Overview of pmm_xcal_mi The PMM calibration process consists of two parts DC calibration and AC calibration The D
68. es These values are measured through external system connections using the dcrefcal program and the HP 3458A meter Deviations from nominal value are stored for use by the autocalibration routines and checker programs Internal Standard to Intstrument Performance APU calibration compares the forcing and measurement functions of the instruments to the reference values Corrections to the transfer functions are stored in the executive software and used to modify the transfer functions at job run time Bounds checking is performed on the transfer function corrections but the overall calibration is performed open loop Verification of performance of the error correction circuitry 1s performed in apust as explained in the following apust section All voltage and current calibrations are two point fit to a line using averaging for best accuracy The voltage forcing functions are calibrated by measuring the differences between the forced values and the voltage references using the DC subsystem meter The voltage measurement functions are calibrated in the current forcing function The difference of the read value is compared with the voltage reference The current forcing functions are calibrated by forcing current through a reference resistor and comparing the voltage generated to a voltage reference using the DC subsystem meter Verification of Autocalibration and Instrument Functionality Catalyst Calibration Manual 99 rm dij caD CED
69. f the calibration path as shown in figure Internal Calibration Path shows that the internal calibration flow can be different for different instruments Different specifications within the same instrument can follow a different calibration path External System Calibration Path The calibration path extends outside the system via two types of external calibration each using instrumentation defined by Teradyne These calibration paths are shown in figure Internal Calibration Path with First Level External Link Calibration of Internal References External instruments are used to calibrate measure and adjust the internal system references Calibration for Traceability of Test System Instrumentation External instruments are used to calibrate traceable measurement comparison only test system instrumentation specifications at the user interface Some instruments have inherent accuracy not maintained by periodic comparison to internal system references for example AC instrument amplitude accuracy To maintain traceability of these quantities a direct comparison with external standards is required This is the basis for requiring the second type of calibration measurement comparison only for traceability Catalyst Test System External Standards Internal Test System A External Standards System References Instrumentation Internal Transfer Standar
70. fications Catalyst Calibration Manual The remaining frequency range dependent specifications are supported by three levels of support procedures The first and most frequent step in obtaining calibrated measurements requires executing the VHFD calibration program which 1s typically done at runtime prior to instrument use In most cases the calibration program is run automatically by IMAGE after user program load time system initialization or every 4 hours thereafter This step is referred to as error measurement A highly accurate and repeatable reference AC voltage is produced by the broadband calibration source BCS which resides on the channel card itself and is measured by the VHFD over a range of measurement modes Error is calculated based on expected versus measured signal levels The error correction takes place at the instrument s FIR filter where the signal is multiplied by the appropriate correction factor This is part of the process known as data correction The second level of support is achieved through regular iterations of the vhfst program The checker should be run weekly in brief mode and monthly in full mode 131 To c VHFD Traceability exa gt zm The final level of specification support can be used to periodically record full system performance to maintain specification traceability If desired an annual check can be performed by running the vhfd_cv process This process uses external instrumenta
71. for the test process 1s also presented at runtime via the test station window when the program is run 1 2 3 4 Install the CV DIB onto the test head Connect the HP 11722A power sensor to the HP 8902 s RF Power connector for calibration The GPIB addresses for the external equipment must be set as follows HP8902A 14 Follow the on screen instructions for test setup connections for each sequencer Checker Test Execution Catalyst Calibration Manual 1 2 3 4 5 Load and run the VHFAWG1200 CV program The load file name is vhfawg1200_catalyst_cv load Follow the program instructions for instrument traceability and connecting the test setup as described in section Checker Test Setup The main menu has two options e Select option 1 Run All Tests to perform one full CV test set on one instrument Runtime for this automated test process is approximately 15 minutes A datalog is automatically created e Select option 2 Options Menu for a list of program options The Options menu includes the following features e Run Specific CV Tests e Support and debug information for each sequencer Repeat steps 3 and 4 for each instrument in the system 73 nm i cxio CEB HP 8902 Measuring Receiver GPIB Address 14 Stiffener Feedthrough Adapters alt_lo alt_hi dir_lo dir_hi alt_lo alt_hi dir_lo dir_hi alt_lo alt_hi dir_lo dir_hi alt_lo alt_hi dir_lo dir_
72. form resolution Catalyst Calibration Manual cx CED Frequency Range Dependent Specifications The remaining frequency range dependent specifications are supported by three levels of support procedures The highest level is the autocalibration processes of leveling and fine attenuation calibration These processes are invoked automatically by the system when required as with all system autocalibration functions The process of leveling is the calibration of the frequency response errors of the VHFCW signal path Here the user s operating point is leveled using a frequency response standard resident in the VHFCW channel card The absolute accuracy of this curve is also calibrated periodically by comparing an operating point against a temperature independent absolute level reference oscillator also resident on the VHFCW channel card The fine attenuation calibration consists of a linearization of the fine attenuation circuitry in the PT S250 by comparing its attenuation curve against the precision step attenuators on the VHFCW channel card The other two levels of specification support procedures for the frequency range dependent specifications are used to record performance The vhfcwst checker should be run according to section Schedule This program checks all of the AC frequency dependent specifications by connecting each VHFCW to a TMS via the test head THADS bus Testing output level is done by using the leveling diode detector on the
73. formance of the UW6000 Microwave Options It is recommended that the uhfcwst uwst and modsrcst checkers be run weekly in BRIEF mode and monthly in FULL mode to ensure full functionality of the UW6000 Option Internal verification is accomplished through the uwmi and modsrc_mi checkers and should be run monthly To periodically record the results of these checks and to aid in the record keeping of this calibration level the uhfcwst uwst and the uwmi programs can be run with the system datalog function enabled These programs through the use of the DC subsystem VHF Digitizer and internal checker board are used to record the performance for the following UW6000 source specifications e Output Level 133 qi ij caD CED e Band SwitchingSpectral Purity e Frequency and Level Switching Time e Receive Level e Detector Output e IF Flatness e Noise Source Option Level 3 System Reference There are no system references that need to be calibrated for the UW6000 Microwave options Level 4 Traceability Traceability 1s the final level of specification support Here the traceable path is defined externally through customer or vendor owned bench top instrumentation that undergoes periodic calibration The uw6000_cv program will guide the operator through the UW6000 CV process with instructions that appear in the station window The HP E4418 Power Meter is used to record the 5 dB absolute amplitude of the source output There the 5dB
74. ftware screen output for further instructions For step attenuation the 10 dB attenuator pn 733 108 00 should be connected to the N connector and the HP 11722A should be connected to the pad Refer to the software screen output for further instructions Set the GPIB address for the external HP 8902 as follows HP 8902A 14 Checker Test Execution 1 2 3 4 5 Load and run the VHFCW CV program The load file name is beta_vhfcwcv load Follow the program instructions for instrument traceability and connecting the test setup as described in section Checker Test Setup The Main Menu has two options e Select option 1 Run All Tests to perform one full CV test set on one VHFAWG400 DIFF Run time for this automated test process 1s approximately 20 minutes A datalog is automatically created e Select option 2 Options Menu for a list of program options The Options Menu provides the capability to select either Absolute Amplitude or Step Attenuation individually Repeat Steps 2 through 4 for each VHFCW in the system Catalyst Calibration Manual exa gt Ee HP 8902 Measuring Receiver GPIB Address 14 HP 11722 Sensor Insert PN 733 108 00 10 dB attenuator here as instructed PN 807 322 00 Slot Header Inputs
75. g Offset in PMM Path 50 Reference Overview 31 Checker Execution 33 External Connections 33 Resistor References 33 Voltage References 31 System Reference Calibration Processes Calibration Products 7 Calibration Level 4 Calibration Description 6 GFS Traceability Process Support Services 8 Optional Traceability Processes Calibration Products 7 Traceability and Responsibility 8 User s N Non Teradyne Equipment Informa tion 15 O Other 140 Overview Calibration Equipment Matrix 10 Calibration Process 2 Calibration Levels 5 External System Calibration Path 4 Internal System Calibration Path 2 Calibration Process Schedule Matrix 10 Estimated Time Matrix 10 External Internal Calibration and Traceability Procedures 16 96 How to Use this Manual 2 Introduction 1 Process Matrices 10 Reference Calibration 31 Overview Calibration Process External Calibration of Internal System References 6 Internal External System Checkers 6 P Precision Low Frequency Digitizer Level 1 Calibration 23 Precision Low Frequency Source Level 1 Calibration 24 Automatic Calibration 24 5 N dalia i i rs ru F a rT i fi i Pi _ i i ae rs r l PPN AF a 2B oa g Er ipa ee B De o d r y a e i n oe ee F g f J 5 A bs P y J Med j f r ry j p Fa F Fa g i F 5 F F d d A SA d J Fm 5 r r f d F F F Ba Sa pull y LU A P ii Ta ad f L A ia a d E dari P Fo i Ba da ld it i r rF ah a Ei r ers S
76. g of path length error specifications is required The atms_cat_cv checker program checks time channel delay or path length of each Catalyst tester channel It uses the system user clock and TACH ATMS as a fixed reference and measures the relative path length of every other tester channel registered with time measurement specifications 101 o i 102 exa gt zm Specification Support Summary ATMS Features Modes Timer Counter Functions Time Base Error The ATMS tmsalst checker program checks functionality of all ATMS inputs ranges and modes listed in the ATMS section of the Catalyst System Specifications Manual pn 553 403 56 Time base error 1s autocalibrated to the LA703 10 MHz master reference The specification for the LA703 10 MHz reference can be found in the Catalyst System Specifications Manual pn 553 403 56 Time Measurement Accuracy and Time Channel Accuracy Relationships Path Length Error Jitter Analog Errors Traceability The accuracy relationships are presented in the ATMS specification for informational purposes They are intended to provide a guide for applying the ATMS specifications but are not specifications The ATMS tmsalst checker program measures the path length error of a path that is similar to the DUT connection To be assured of ATMS compliance with the specification an external calibration program atms_cat_cv will measure the residual path length error of each channel using an i
77. he test station window when the program is run 1 Install the Catalyst 1GHz VHFD CV DIB pn 804 785 00 on to the test head 2 Manually mate the DIB s RF_HI and RF_LO cables to the appropriate DIB connectors according to the test head slot of the instrument under test Follow the on screen instructions 3 Connect the RF Power output of the HP8657 to the DIB input ISA using the 4 BNC SMA cable pn 807 326 04 4 Connect HP11722A power sensor to the HP8902 s RF power connector for calibration After calibration the program will prompt the user to connect the sensor to the N connector on the DIB 5 Connect the system 10MHz reference to the TIME BASE INPUT connector of the HP8657 using the 15 cable pn 358 216 15 6 The 1OMHz reference is generated by the LA703 but can be accessed at the reference output of any PTS in the system as long as the reference signal daisy chain is not broken For more information about the location of the LA703 refer to the section on LA703 calibration 7 The GPIB Addresses for the external equipment must be set as follows e HP8902A 14 e HP8657A 07 CV Test Execution 1 Load and run the VHFD CV program The load file name is vhfd_cv load 2 Follow the program instructions for instrument traceability and connecting the test setup as described in the above section 3 The Main Menu has two options Select option 1 Run All Tests to perform one full CV test set on one 1GHz VHF Digitize
78. he command line The systems autocalibration process is preferred over individually calibrating each instrument because the autocalibration was designed to calibrate each instrument in the order of their dependencies on other instruments so as to ensure proper qualification The process of calibrating the power level and attenuation is done by measuring the output signal via internal diode detectors with the DC sub system The measurement is then compared to the reference value stored in the source and uwport channel cards The difference between the measurement and the reference value referred to as the error term is then used to re calibrate the source and bring the output signal back to specification This illustrates the importance of calibrating the DC subsystem first before calibrating the UW6000 Microwave Option This process 1s performed across the entire frequency band of the source using incremental frequency steps Functionality and verification of the guaranteed specifications 1s provided by the uhfcwst uwst uwmi modsrcst and modsrc_mi checkers The guaranteed specifications exclude any and all specifications labeled as typical or nominal as well as any specifications that are derived from the guaranteed specifications Traceability of the guaranteed specifications is accomplished internally through the DC subsystem VHF Digitizer and the systems internal 10 MHz clock The traceable DC of these instruments is used to record the per
79. he connections as shown in table PMM Offset Cable Connections using the PMM external calibration cable assembly pn 804 208 00 provided in the PMM CV Tool Kit 2 Type c to continue the program Do not disturb the setup while the program is running The pmm_xcal_mi verifies the connections waits 5 minutes for all junctions to reach thermal equilibrium then measures path resistance and voltage offset These values are used to correct the values of the external standards used later in the calibration 3 Disconnect all shorted banana jack connections PMM Offset Cable Connections PMMAHI l1 Banana Jack Cable End of PMM B Guard PMM ALO l2 Banana Jack Cable End of PMM A HI PMMBHI I3 Banana Jack Cable End of PMM A LO PMM BLO l4 Banana Jack Cable End of PMM B HI PMM A Guard O Banana Jack Cable End of PMM B LO PMM B Guard Banana Jack Cable End of PMM A Guard 10V DC Calibration 1 When the program displays 10V DC Calibration make the following connections between the PMM external calibration pn 804 208 00 cable assembly and the Datron 4910 Refer to table 1OV DC Cable Connections and for the connections Make the connections using the banana plug end of the cables Catalyst Calibration Manual cx CED 2 Type c to continue the program Do not disturb the setup while the program is running The program will query the operator for the value of the 10V DC standard Type in the value that is displayed on the top of the Datron 4
80. hi Slot 7 Slot 10 Slot 14 Slot 19 B17 B16 B13 B12 B7 B6 B3 B2 Move probe to each of the AWG inputs y as directed by the program O HP 11722 us e T aenn E a Sensor a D PN 359 147 00 N F SMA F PN 359 256 00 SMA M SMA M VHFAWG1200 Calibration Verification Connections vhfawg400 diff cv This process validates of the instrument s calibration to Level IV requirements When performed regularly at the prescribed time interval NIST traceability of the instrument is maintained All guaranteed ESSD amplitude accuracy and step attenuation specifications are tested Runtime for the test process is approximately 20 minutes excluding test setup Program Name vhfawg400_diff_cv_catalyst 74 Catalyst Calibration Manual cx CED Equipment Required Table 9 ay Model PN Description HP 8902A Measuring Receiver Measuring Receiver 803 369 00 HF AC Traceability Tool Kit 804 785 00 Catalyst Multipurpose CV DIB Checker Test Setup The following setup for the test process 1s also presented at runtime via the test station window when the program is run 1 2 3 4 5 6 7 8 9 Install the CV DIB
81. ial instrument connections and other miscellaneous signals For a detailed description review the Support Program Document SPD section of the catalyst_continuity_mui tl source code located in the directory image ckr_bin 6 3 or the latest version The SPD is at the beginning of the file The accuracy of the DC subsystem 1s based on a series of comparisons of instruments to references internal to the system These references can be compared to external standards establishing a path to nationally accepted standards This section describes the basic mechanisms that perform the comparison and verification of reference and instrument performance The path of comparison and verification is as follows e External standard to internal standard dcrefcal e Internal standard to instrument performance autocal e Verification of autocalibration and instrument functionality dest e Verification of path performance Internal matrix matrix_st Test head device area catalyst_continuity_mi External Standard to Internal Standard The DC reference module AD412 board provides 14 voltage reference levels and five resistor references These values are measured through external system connections using the dcrefcal program and the HP 3458A meter Deviations from nominal value are stored for use by the autocalibration routines and checker programs Catalyst Calibration Manual cx CED Internal Standard to Instrument Performance Autocalibratio
82. ils the calibration and traceability path for device measurements made on Catalyst instrumentation Traceability of the Catalyst test system instrumentation is achieved by following the processes outlined in this manual and using external standards calibrated and traceable through a qualified calibration lab to a national standard It is the user s responsibility to define and support the traceability path If the user contracts with Teradyne to provide the field calibration service the traceability path is through the equipment rental service Availability of appropriately traceable test equipment on site is the responsibility of the user unless other arrangements are made with the local Teradyne service office Catalyst Calibration Manual aD zm National or International National or International Standards Standards Level 3 Level 4 Traceability Traceability Path Path Calibration Lab Calibration Lab Catalyst Test System External Test System Standards Instrumentation Internal External System Standards References Internal Transfer Standard may be test system instrumentation Traceability Flow Block Diagram Replacement of System Reference It may be necessary to replace a system reference If the new reference 1s precalibrated then only level 1 and 2 processes
83. initions 139 E External Calibration for Internal References Level 3 AD412 Reference Board Checker Execution 33 dcrefcal Procedure 35 Equipment and Setup for dcrefcal 33 Equipment Required 34 HP 3458A Meter 34 Standards Verification Connection 34 Equipment and Setup for hcurefcal 44 Equipment Required 44 hcurefcal Procedure 45 Setup 44 External Connections 33 LA703 10MHz Master Reference Module Calibration Setup 39 100MHz Reference Verification 41 Automatic Counter Control and Data Collection Method 40 Checker Execution 40 Equipment Required 40 Manual Calibration Method 41 LA703 Adjustment Procedure 41 LA703 00 10 100 MHz XTAL Oscillator Overview 37 Overview of pmm_xcal_mi 46 Equipment Required 48 pmm_xcal_mi Procedure 48 10K Calibration 51 10V DC Calibration 50 Alternate AC Calibration 53 Alternate DC Calibration 52 Checking Jumper Wire Connections 50 Implications of Different Calibration and Operation Temperatures 52 Making Connections 49 Measuring Offset in PMM Path 50 Reference Calibration Overview Checker Execution 33 External Connections 33 Resistor References 33 Voltage References 31 Reference Calibration SIGIVALS RA AANAAA Overview Board 31 Resistor References 33 Voltage References 31 AD412 External Connections 33 External System Calibration Path 4 Calibration for Traceability of Test system Instrumentation 4 Calibration of Internal References 4 External Internal Cali
84. ket opposite to the white dot contacts the pin This pin is pointed to by the silk screened arrowhead adjacent to the channel number to be tested channel 1 in the example on the DIB The ground socket marked by the white dot contacts the adjacent pin to the arrowhead on the DIB The program then prompts for contact to the channel under test If the scope is not already connected to that channel then connect it to that channel Refer to figure Scope Channel Connection to an HSD DIB Channel Testing starts after a few second delay see note 2 When channel testing 1s completed the program prompts to move to the next channel Continue testing until all channels have been tested Overhead View of DIB Cutout Two Socket Connector DIB Outer Trigger Scope Connection to DIB Circumference White dot marks ground socket To DIB Strain Relief Bracket Cable PN 807 322 00 11 12 13 78 PN 807 326 01 4 To DIB Strain Relief Bracket TDR Jack SMA E DIB PN 804 785 00 Scope Channel Connection to an HSD DIB Channel After testing of the last channel the program enters the setup menu Enter x to exit from the program and to get the final peak to peak edge skew of the system The system must pass each individual channel as well as the peak to peak limits in order to complete this process Remove the connecti
85. l_interval extern void tl vhfcw_cal_interval extern void tl_uhfsrc_cal_interval extern void tl_vhfawg_cal_interval 1 These functions take one parameter the number of seconds of the calibration interval To set the interval for DC subsystem calibration to 5 hours instead of 4 hours use extern void tl_dc_cal_set_interval tl_dc_cal_set_interval 60 60 5 The exception is tl_hsd_set_cal_interval which takes two parameters void tl_hsd_set_cal_interval which secs int which 0 gt set interval to recalibrate default 1 year 1 gt set interval to check environment default 20 mins int secs desired interval in seconds These functions are not required for normal use Use them only in special circumstances Consult the following user manuals for more information on internal system calibration level 1 e IMAGE Base Language Manual Calibration pn 553 403 17 e Catalyst Instrumentation Manual HSD Calibration pn 553 403 58 Also refer to individual instrument sections for instrument specific calibration information Calibrate the DC subsystem including all present sources voltmeter and DUT sources using the command calibrate station dc file verbose This command also calibrates any HCUs in the test system As calibration proceeds the checkers windows display status messages including e Source currently being calibrated e AD412 reference card serial
86. lett Packard HP E4418 Power Meter GPIB UW6000 A or B SRC Hewlett Packard HPE4412A UW 6000 SRC a GPIB communications are used for most Level III and Level IV processes It is necessary to configure the measurement device with the appropriate address prior to starting the test Note In the case of the HP8902A unit the address selection switches are embedded within the unit and must be set by qualified individuals 14 N A 7 7 N A 7 b The PMM instrument specification is time dependent Teradyne provides specification detail at quarterly and annual intervals Consult the PMM ESSD to determine instrument performance accuracy and match the appropriate calibration period with the test accuracy requirements c The internal time base of the HP53131A must have been calibrated within the three weeks prior to conduct of the freq_ref_mi process in order to enssure the desired accuracy 0 2 Hz 10 MHz 12 Catalyst Calibration Manual cx CED Estimated Time Matrix Level 1 Estimated Time Matrix Level 2 Estimated Time Matrix Level 3 Program Estimated Time Catalyst Calibration Manual 13 D D caD CED Estimated Time Matrix Level 4 Teradyne Tool Kits Where Used Teradyne Description Options Part Number Quarterly Annually 803 800 00 Kit Level III Calibration Specify kit 803 800 02 All All instead if performing pmm_xcal_mi PMM HSD All VHF ATMS TJD 803 804 00 Kit Multipurpose DIB
87. ll labeled For the remaining six signals only the last digit of the channel number is silk screened Interfacing to each of the digital signals is performed by connecting a cable pn 807 322 00 to the appropriate pair of header pins Note that the coaxial cable pn 807 322 00 provides a white dot on the 2 pin header housing This dot indicates the location of the outer conductor of the cable The outer conductor or shield must always be connected to a DIB ground signal The LA785 DIB silk screen information provides the slot number and pin location of the signal center conductor 136 Catalyst Calibration Manual Channel 17 Interface Pins Inner Circle Indicates Ground Channel 18 Interface Pins Inner Circle Indicates Ground Channel 19 Interface Pins Inner Circle Indicates Ground LA785 Digital Channel Interface Pins Catalyst Calibration Manual 137 Catalyst Level IV Kit on 803 806 00 Information LA785 Interface Cables Interface Cables 3ft SMA M SMA M Scope Cable 1ft SMA M 2 Pin Header Cable p 6 80732601 1ft SMA M M Cable Part of 803 804 00 Kit 10 dB Attenuator N 8 oea 4t SMA M M Cable o o SMA FVN M Adapter 16 BNCC WIM Cable Torque Tool nib Wrench Head 5 16 in 138 Catalyst Calibration Manual exa gt Gizm Appendix B Definitions Calibration Calibration Comparison of ameasurement standard or instrument of known accuracy with another standard or instru
88. lyst_continuity_mi and pmmst in syscheck full mode Quarterly or annually See note below e Run pmm_xcal_mi Note The PMM instrument specification is time dependent Teradyne provides specification details at quarterly and annual intervals Consult the PMM specifications to determine the instrument performance accuracy and match the appropriate calibration period with the test accuracy requirements Equipment Required Refer to pmm xcal mi Procedure PMM Calibration Specification Support The specifications of the PMM as described in the Catalyst Advanced Mixed Signal Test System Specifications pn 553 403 56 are maintained through the following programs 122 Catalyst Calibration Manual cx CED Calibration Table 4 3 Progam Purpose Usage Interval Usage Interval calibrate pmm dcv acv Autocalibration of DC subsystem ohms PMM reference calibration 90 days Performance Test Table 4 4 Program Purpose Usage Interval pmmst Instrument performance test 1 week brief mode 1 month full mode catalyst_continuity_mi Connection performance test catalyst_continuity_mi Connection performance test Brief Summary of Each Program calibrate pmm dcv acv ohms Autocalibration is a process internal to the PMM s HP 3458A meter that calibrates each meter range and function by comparing their performance against standards located in the meter Run time is approximately 12 minutes pmm_xcal_mi The pmm_xcal_
89. m The calibration data for the test system is updated after each calibration If you do not use the autocal switch the test program must calibrate and deskew the test system at the proper intervals to maintain test system specifications cal set statement Specify and execute a calibration set at least once at the beginning of the test program using the cal_set statements described in this section The cal_set statement causes IMAGE to calibrate the following components sequentially e aDC calibration Calibrates A D on the LA670 CSB e pwrsrc calibration Test head programmable power supply calibration e HSD levels as specified in the cal_set statement or to default values if voltage levels are not specified e HSD timing edges for all formats Catalyst Calibration Manual qi CE caD CED If calibration is successful IMAGE creates a set of calibration data for all channels in the CALSET Ifa channel fails calibration the test program stops If you selected continue on fail the test program uses the default calibration values and continues Calibrate the HSD subsystem at the voltage levels that you plan to use in your test program to achieve the specified timing accuracy For more detailed information about the HSD subsystem calibration refer to the IMAGE Base Language Reference Manual pn 553 403 17 cal_set Syntax Catalyst Calibration Manual set hsd cal_set lt setname gt vrange lt rangespec gt ppmu_vsys lt
90. manman DIB PN 804 785 00 TJD Calibration Verification Connections 70 Catalyst Calibration Manual qi CE caD CED vhfawg 2500_CV This process validates the instrument s calibration to level IV requirements When performed regularly at the prescribed time interval NIST traceability ofthe instrument is maintained All guaranteed ESSD amplitude accuracy and step attenuation specifications are tested Run time for the test process is approximately 15 minutes excluding test setup Program Name vhfawg2500_cv load Equipment Required Note All SMA connections on the DIB AD949 need to be torqued to 8 in lb Checker Test Setup The following setup for the test process is also presented at run time via the test station window when the program is run 1 Install the CV DIB onto the test head 2 The GPIB addresses for the external equipment must be set as follows Hp441X 13 Hp3458 10 3 Follow the on screen instructions for test setup connections for each sequencers Catalyst Calibration Manual 71 i caD Gi Checker Test Execution 1 Load and run the VHFAWG2500 CV program The load file name is vhfawg2500_cv load 2 Follow the program instructions for instrument traceability and connecting the test setup as described in the above section 3 The main menu has two options e Run Absolute Amplitude Tests e Run Step Attenuation Tests Select and run each test one at a time 4
91. mately 11 minutes Do not make any connections to the meter until the process 1s complete The meter can be programmed with a password If running over IEEE connect the meter to the IEEE interface Set the meter address to 10 Instructions on how to set the meter address can be found in the HP 3458A manual If running manually set the meter as follows 1 Turn OFFSET COMP ON Press OFFSET COMP up arrow then Enter 34 Catalyst Calibration Manual qa CE caD CED 2 Set NPLC to 30 Press NPLC 30 then Enter 3 Set to DC voltage for voltage verification measurements When testing resistance switch to OHMF blue button Connect the HP meter to the standards verification BNC connectors on the system Refer to figure DCREFCAL DVM Connections e Meter input to J5 volts e Meter ohms to J4 ohms e Meter guard to system ground Refer to the section dcrefcal Procedure step 11 dcrefcal Procedure 1 Log in to a station window as checkers 2 Right click the CHECKERS button Then right click Individual Maintenance and Installation and dcrefcal 3 Using the right mouse button set the termination mode under the RUN button to continue on error Invoke the checker by typing run and pressing lt return gt 4 A statement with the revision date of the checker appears along with a statement displaying the AD212 or AD412 serial number Respond with y and press lt return gt 5 The next message displayed i
92. me master clock calibration must be valid for ATMS autocalibration to be meaningful Refer to frequency verification procedure tjd cv 100 Catalyst Calibration Manual rm CE caD CED e DC subsystem autocalibration must be valid for ATMS autocalibration to run Refer to DC procedure DC Subsystem ATMS Calibration Verification Explanation Table 5 Program Purpose Usage Interval calibrate tms Autocalibrate TMS tmsalst Instrument Performance test Weekly brief mode Monthly full mode atms_cat_cv External path length error Annually performance test Brief Summary of Each Program calibrate tms tmsalst atms_cat_cv Catalyst Calibration Manual Autocalibration is a system internal process that uses system time voltage and resistance references to determine the following ATMS parameters e Time interpolator transfer function e Time base error e Trigger level accuracy e Time channel delay electric path length These parameters are adjusted in job plan setup or measurement functions to put ATMS performance within specification The tmsalst checker program checks all aspects of ATMS performance All features and specifications are tested using internal system references and techniques that are not related to the calibration algorithm The path length error specifications for ATMS channels while tested in tmsalst use the same reference signal and path as the path length calibrator Therefore external testin
93. memory dcrefcal The dcrefcal calibration program uses an external meter the HP 3458A to measure and store the errors of the DC reference voltage sources and resistors located on the AD412 reference card These errors are used to correct the reference values used during autocalibration They are stored in an EEPROM on the reference card set The calibration history of the DC reference can be extracted from the EEPROM and examined for stability Catalyst Calibration Manual 105 To i 106 dcst matrixst cD Giz The dest checker program checks all aspects of performance of the DC subsystem The voltage and current forcing and measuring functions are checked at several points per range usually including values that are not part of the calibration algorithm The values are tested against the system references where appropriate including points not directly related to calibration Miscellaneous features and functions are also tested The matrixst checker program tests the performance of the DC connections through the basic DC matrix This includes testing for independence of all lines and pins force and sense connections and digital readback catalyst_continuity_mi Traceability The catalyst_continuity_mi checker program is designed to verify continuity that is no opens or shorts of all signals provided to the test head The signals include matrix and DUT sources force sense and guard stored databits analog and digit
94. ment see section Non Teradyne Equipment Information Estimated Time Matrix The estimated time matrix contains the estimated execution times for each process Catalyst Calibration Manual TD i Catalyst Field Calibration Process Summary es Level 4 Additional Traceability Process for System Instruments Level 2 Internal External System Checkers Level 1 Internal Autocalibration Calibration Interval Level 3 External Calibration of Internal References aD zm Specified Internal Automatic Autocalibration Calibration Level 1 Interval catalyst_continuity_mi default Weekly Internal Automatic Calibration Level 1 Autocal is performed with System Check Precision Multimeter PMM Monthly Internal Automatic System Check full Calibration Level 1 full mode System Check Autocal is performed with Continuity Checks monthly System Check catalyst_continuity_mi default 3 Precision Multimeter Quarterly Internal Automatic Calibration Level 1 Autocal is performed with System Check Annually Internal Automatic Calibration Level 1 Autocal is performed with System Check and Traceability Programs CV 11 Catalyst Calibration Manual System Check brief brief mode System Check Continuity Checks weekly System Check full dcrefcal Equipment and full mode System Check Setup a dcrefcal Continuity Checks Monthly hcurefcal eae and catalyst_continuity_mi all test
95. ment to detect correlate report or eliminate by adjustment any variation in the accuracy of the item being compared Autocalibration The calibration of a system or subset of a system that does not require operator interaction to run External Calibration Calibration of a test system instrument or test system standard with a check standard or transfer standard Adjustment The changing of circuit inputs or circuit components to achieve a desired performance Adjustments may be permanent or periodic and may be manual or automatic Deskew The alignment of edges for a high speed digital channel Catalyst Calibration Manual 139 qi i caD CED Checkers Other 140 ST Checker A self test ST program that achieves the test objectives without use of any external fixtures or instrumentation The objective of this program is that it can be run without disturbing the device setup MI Checker A maintenance and installation MI program that requires some type of external fixtures or instrumentation This type of program typically is used to check the final connection path out to the device location We recommend it be run only during initial system installation and during each preventative maintenance session ESSD Engineering Specification Support Document Official controlled document listing all specifications for a particular instrument or subsystem which outlines how and when the performance against specification is
96. mi calibration program uses an external 10V DC voltage standard Datron 4910 and external 10K resistor standard Fluke 742A 10K to measure and store the errors of the DC reference voltage source and resistor located in the HP 3458A meter These errors are used to correct the reference values used during autocalibration The program pmm_xcal_mi also autocalibrates the HP 3458A meter and creates a record file of the calibration named pmm_cal_record in the current directory If there 1s an existing pmm_cal_record file the new data is appended to it pmmest The pmmst checker program checks all aspects of performance of the PMM The voltage and current measuring functions are checked at several points per range against the system sources Miscellaneous features and functions are also tested catalyst_continuity_mi The catalyst_continuity_mi checker program tests the continuity of the pmm path to the area of the device interface board DIB Catalyst Calibration Manual 123 o i Traceability exa gt zm The accuracy of the PMM is based on a series of comparisons to references internal to the HP 3458A meter These references can be compared to external standards establishing a path to nationally accepted standards This section describes the basic mechanisms that perform the comparison and verification of reference and instrument performance The path of comparison and verification is as follows e External Standard to Internal Sta
97. ms_st in full mode Annually e Run cat_plf_cv process required only for traceability Equipment Required for Optional Traceability Process See cat_plf cv Precision Low Frequency Specification Support Description This section describes the specification support for the precision low frequency PLF source and digitizer instrumentation The procedures to support these instruments are contained in cat_plf cv The PLF source and digitizer specifications are described in the Catalyst System Specification Manual pn 553 403 56 118 Catalyst Calibration Manual cx CED The specification support is broken up into two sections The first section includes support for the general specifications for the PLF source and digitizer listed in section 1 of the PLF source and PLF digitizer sections of the system specification manual The second section supports the frequency range dependent specifications of sine wave amplitude accuracy General Specifications PLF Source Catalyst Calibration Manual All specifications for the precision low frequency PLF instrumentation require that no hardware or firmware adjustments be made to ensure performance The frequency accuracy of the PLF instrumentation is derived directly from the system RF synthesizer which serves as the time master clock for the system and thus is the working frequency reference for the AC instrumentation Traceability for the precision low frequency PLF instrumentation freq
98. n FULL mode Run the uwmi and modsrc_mi checkers e Annualy Run the uw6000_cv process only required for traceability Equipment Required for Optional Traceability Refer to Section 3 of the uw6000_cv process UW6000 Specification Support Description The UW6000 specifications are qualified at the customers site using calibrations levels 1 2 and 4 Level 1 performs the internal auto calibration Functionality and ESSD verification is tested using the uhfcwst uwst and modsrcst checkers in Level 2 Traceability for these specifications is provided in Level 4 using calibrated external instruments Note there is no level 3 test to be performed for this option Catalyst Calibration Manual cxi CED Qualification for each level requires that no hardware or firmware adjustments are made to ensure proper performance Since each new level is progressively more comprehensive than the last the qualification of the higher calibration levels depend on the passing qualification of their dependent lower calibration levels This is also true of the individual tests contained within a single calibration level Level 1 Internal Calibration Level 2 Checkers Catalyst Calibration Manual Level 1 performs the auto calibration process to calibrate the power level and attenuation of the UW6000 Microwave Options This process is automatically invoked by the system like all system auto calibration functions when activated by typing autocal on t
99. n compares the forcing and measurement functions of the instruments to the reference values Corrections to the transfer functions are stored in the executive software and used to modify the transfer functions at job run time Bounds checking is performed on the transfer function corrections but the overall calibration is performed open loop Verification of performance of the error correction circuitry is performed in dcst as explained in section Verification of Autocalibration and Instrument Functionality All voltage calibration with the exception of the 0 5V 50V and 100V ranges is performed using linear regression for determination of the transfer function errors All other calibration uses a two point fit to a line using averaging for best accuracy Voltage forcing functions have a linearization calibration performed on the D A converter This calibration is ratio metric and does not require the use of an absolute standard The voltage forcing functions are calibrated by measuring the differences between the forced values and the voltage references using the DC subsystem meter The voltage measurement functions for the sources are calibrated simultaneously with the forcing function The difference of the read value is compared with the known forced value The voltage measurement function of the system meter 1s calibrated by direct measurement of the voltage reference levels The current forcing functions are calibrated by forcing curre
100. nces Test System Power re PACS II TRAE Wy z m g d O m fo pZ sE a E E i i Oe d JmMmACUZOO H m a i a m q L D m e E MHz 100 MHz a Ta O lilly a ite oe ors l i 7 l i 0 Universal Card Cage oN E LA703 Adjus Screwdriver e T o ee ee ee SQ O TATS Card Cage SCS TSY Card Cage MAIN A co E Option Area e ee o o ee LLL OM ON L i Emergency On Off Catalyst Mainframe Service Side Catalyst Calibration Manual 43 To i 44 exa gt zm Equipment and Setup for hcurefcal The hcurefcal checker measures and stores the errors associated with the HCU internal resistance references on the TJ151 00 board The error found at each reference resistance is stored in a file that resides in image tester lt host name gt cal These reference corrections can then be used by the HCU calibrator to provide accurate HCU references Equipment Required o e O o HP 3458A Digital Multimeter From the Catalyst Level III CAL Tool Kit pn 803 800 00 a 804 096 00 CBL HCU REF CAL Setup HP 3458A meter Autocalibrate the HP 3458A meter The HP 3458A must have been autocalibrated within 24 hours The meter may be programmed with a password 1 Disconnect any leads
101. ndards pmm_xcal_mi e Internal Standard to Instrument Performance autocalibration calibrate pmm e Verification of Autocalibration and Instrument Functionality pmmst e Verification of Path Performance to Test Head Device Area catalyst_continuity_mi External Standard to Internal Standard The HP 3458A meter provides one voltage reference and one resistor reference The program pmm_xcal_mi compares these values against an external 10V DC voltage standard Datron 4910 and an external 10K resistor standard Fluke 742A 10K Deviations from nominal values are stored in the HP 3458A meter for use by the autocalibration routines Autocalibration compares the measurement functions of the HP 3458A meter to its reference values Corrections to the transfer functions are stored in the HP 3458A meter s internal software and are used to modify the transfer functions Refer to the HP 3458A Manual for more information The checker program pmmst provides verification of the performance of the hardware functionality and performance after calibration through measurements against the internal system references Path performance is tested by checker catalyst_continuity_mi This checker verifies the integrity of the pmm connections to the user area Very High Frequency Arbitrary Waveform Generator Specification Support Summary 124 Schedule Every 4 hours e Run autocalibration calibrate vhfawg or job plan equivalent Weekly e
102. ndow Place the pointer on the checkers selection and press the right mouse button 5 Move the mouse pointer slowly downward until System Check is highlighted Catalyst Calibration Manual 29 GEES cxi CED 6 Move the mouse pointer slowly toward the right until a menu selection appears and System Check is highlighted Refer to the figure System Check Submenu Release the mouse button to load and run the checker Moving the mouse pointer until System Check brief is highlighted loads and runs checkers in brief mode rT Desde iabhdep Ass hAlba slali i Misler llejli em id L DERM RRR PR PU he Ennn EEL ELS System Check Submenu catalyst_continuity_mi Procedure Equipment Required For catalyst_continuity_mi the continuity DIB pn 805 761 00 is needed This is in the checker tool kit pn 806 166 05 Load and Run catalyst_continuity_mi The console window must be open to view error messages 1 Install the DIB pn 805 761 00 onto the test head 2 Verify that the continuity jumper block area W1 W2 in the center of the DIB is fully populated 3 Move the mouse arrow to the top section of the station window Place the arrow on CHECKERS and press the right mouse button 4 Move the mouse slowly downward until ndividual is highlighted 30 Catalyst Calibration Manual cx CED 5 Move the mouse slowly towards the right until a menu selection appears and then slowly downward until Maintenance and Installation is
103. ne signal to three differential ECL outputs An RF transformer is used to provide isolation between the system s digital and analog grounds 38 Catalyst Calibration Manual cx CED X10 Phase Lock Loop The phase lock loop PLL takes the 10 MHz output signal and increases it to 100 MHz while maintaining the accuracy and stability of the 10 MHz crystal The X10 PLL is made up of an input divider phase detector loop low pass filter VCXO and a feedback divider The combination of input and feedback divide ratios results in a gain of 10 The phase detector is filtered by a low pass filter to get the DC component of the phase detector output The result is a 100 MHz output that meets the performance of a crystal oscillator 100 MHz External Internal Jumper The LA703 00 provides for selection of an external or internal source for the 100 MHz signal Normally an external coaxial jumper is installed that connects the internal 100 MHz signal to the rest of the output chain However this jumper arrangement allows for an external 75 to 100 MHz sine wave signal to be fed into the bandpass filter BPF Sine LVPECL Conversion The output of the 100 MHz BPF which is sinusoidal must be converted to low voltage positive supply ECL levels LVPECL This is accomplished with the use of a wide band amplifier to maximize slew rate AC coupling is then used to route that output into the differential inputs of an LVPECL device 100 MHz Clock Distrib
104. need to be executed after replacing the reference If the new reference is not precalibrated then levels 1 2 and the appropriate level 3 process must be executed with the new reference Catalyst Calibration Manual 9 nm diz caD CED Overview Process Matrixes This chapter includes the following three matrixes e Calibration Process Schedule Matrix e Calibration Equipment Matrix e Estimated Time Matrix Calibration Process Schedule Matrix The table Catalyst Field Calibration Process Summary is a matrix of the processes described in this manual The scheduled intervals of these processes varies from every 4 hours to once a year All the processes listed in the matrix can be performed by properly trained customer personnel There are also service support packages offered by Teradyne that include total coverage by Teradyne personnel For more information regarding specified autocalibration intervals refer to the IMAGE Base Language Manual pn 553 403 17 Procedures should be run in the order listed due to some procedure dependencies See table Catalyst Field Calibration Process Summary for further process dependency information Calibration Equipment Matrix The lists all the required equipment for quarterly or annual processes Each row identifies the required type of instrumentation For the Teradyne tool kits necessary for calibration see the table Teradyne Tool Kits For the addresses of the manufacturers of this equip
105. neers using specified electronic test equipment Internal Automatic Calibration Level 1 Note The system under calibration the environment and any external instruments must be stable with respect to temperature and humidity to ensure accuracy of these procedures Automatic calibration uses the internal system DC and frequency references to calibrate many of the test system instruments Automatic calibration for most instruments is invoked automatically at test program load time To activate the automatic calibration feature when loading a test program include autocal on the load command line As with other load command options this switch can also appear ina load file After a test program is loaded automatic calibration can be activated by using the calibrate command The command accepts the switches autocal and noautocal on the command line When automatic calibration is on the test system automatically calibrates any of the instruments whose current calibration is invalid Instruments Calibrated During Autocalibration e DC subsystem 16 Catalyst Calibration Manual cx CED Advanced time measurement subsystem ATMS ATMS is a full calibration including path length correction It is performed once for every test head in the test system This takes place only if the ATMS is used in the test program Analog pin units APUs Calibration takes place only if APUs are used in the test program High speed digital subs
106. not connect until instructed DIB a a To Scope Trigger DIB Strain Relief Bracket PN 918 242 00 _ PN 807 322 00 F PN 807 326 01 PN 807 326 04 4 5 6 7 8 Catalyst Calibration Manual To HSD Channel LL DIB PN 804 785 00 Catalyst HSD Calibration Verification Connection Connect the GPIB cable between the rear of the scope and the GPIB of the system Make sure the GPIB address is set to 7 Run the program When prompted enter the scope serial number and scope next calibration date At the Main menu press lt Return gt to run all tests The program next prompts for the start of edge calibration Enter your name and then press lt Return gt to start edge calibration All calibration sets must pass to continue 77 qa ij caD CED 9 10 When prompted by the program during the reference channel setup connect the Scope channel to the indicated channel on the DIB see figure Scope Channel Connection to an HSD DIB Channel Connect the scope trigger by attaching the cable 807 326 01 SMA M connector onto the TDR SMA F on the DIB surface e Slide the two socket connector from pn 807 322 00 over the DIB header pins so that the signal soc
107. nt through a reference resistor and comparing the voltage generated to a voltage reference using the DC subsystem meter The current measurement functions are calibrated using the same method as the current forcing function Verification of Autocalibration and Instrument Functionality The dest checker program provides verification of the performance of the hardware functionality and performance after calibration through measurements against the internal system references In most cases the verification uses a set of values and or test techniques different from the calibration algorithms to determine the performance of the instruments The error correction circuitry for the transfer functions as well as the current set of transfer function corrections 1s tested Verification of Path Performance Path performance is tested by two checkers matrix_st and catalyst_continuity_mi These checkers verify the independence of the force and sense connections and the integrity of the connections to the user area Catalyst Calibration Manual 107 nm E cD CED High Current Unit HCU Specification Support Summary Schedule Every 4 hours e Run autocalibration calibrate dc or job plan equivalent Weekly e Run catalyst_continuity_mi hcust and matrixst in syscheck BRIEF mode Monthly e Run catalyst_continuity_mi hcust and matrixst in syscheck FULL mode Quarterly e Run hcurefcal Equipment Required Table 5 803 800 00 Ca
108. ntents of the meter s AUXERR and ERRSTB error registers and attempts to clear them If the registers can be cleared the operator is prompted to repeat the setup The program then attempts to calibrate the meter This is done without restarting pmm_xcal_mi If the error registers cannot be cleared then a more significant error exists and pmm_xcal_mi aborts 47 qa ij caD CED 48 Equipment Required Co e O 800 537 02 DIB Interface Cables 804 208 00 External Calibration PMM Cable Assembly The exact values of the 10V and 10K references must be known before performing the external calibration pmm_xcal_mi Procedure To achieve proper accuracy during program execution the system covers must be installed Connections between the DIB and the external references should not be subjected to air currents or thermal gradients Refer to Appendix A Device Interface Board DIB Interfacing Details for DIB information and for orientation of shield and signal on the connector 1 Log in to a station window as checkers Checkers may require a password 2 Secure the DIB pn 804 785 00 onto the test head Refer to the Catalyst Test Head Manual pn 553 700 58 for installation and removal of the DIB 3 Connect the four cables listed below pn 800 537 02 from the test head slot containing the PMM channel card and cardlet under test to the DIB external connection bracket DECB The four DIB interface cables are connected as follows
109. nternal reference and external connection The ATMS tmsalst checker program checks the jitter performance of each channel using an asynchronous input from the test head The ATMS tmsalst checker program checks the analog performance of each ATMS channel using the calibrated DC subsystem input at the test head The DC subsystem accuracy is more than an order of magnitude better than the specified ATMS performance The accuracy of the ATMS is based on a series of comparisons of ATMS to internal system references These references can be compared to external standards establishing a path to nationally accepted standards This section describes the basic mechanisms that perform the comparison and verification of reference and instrument performance The path of comparison and verification 1s as follows e External standard to internal standard dcrefcal LA703 10 MHz master reference module calibration Catalyst Calibration Manual Gum cit cxx CED e Internal standard to instrument performance Autocalibration calibrate dc and calibrate tms e Traceability of autocalibration atms_cat_cv e Instrument functionality tmsalst Catalyst Calibration Manual 103 im dij cD CED DC Specification Support Summary Schedule Every 4 hours e Run autocalibration calibrate dc or job plan equivalent Weekly e Runcatalyst_continuity_mi dest and matrixst in syscheck brief mode Monthly e Run catalyst_continuity_mi dest
110. o J10 on the DIB Using cable pn 800 487 00 connect pin 1 of J10 to pin 1 of SL3 Pin 1 on cable pn 800 487 00 is identified by the white marking Pin 1 on the J10 and SL3 connectors is always the pin closest to the stenciling on the DIB Press lt RETURN gt when ready CONNECT the LFACDIG IN TEST HEAD SLOT 3 to J12 ON the DIB Using cable pn 800 487 00 connect pin 1 of J12 to pin 10 of SL3 Note that you are connecting to pin 10 of SL3 not pin 1 Pin 1 on cable pn 800 487 00 is identified by the white marking Pin 1 on the J12 and SL3 connectors is always the pin closest to the stenciling on the DIB Press lt RETURN gt when ready 59 yfyf Hoe ae ry Ftp yoo Lid oe erry Lt af TOG ai Figi E Lirih Ces ys ren a LFAC Cable Connections 60 Catalyst Calibration Manual o dix lt 1 gt lt 2 gt Ose lt A gt lt B gt lt C gt Catalyst Calibration Manual 11 cD E After connections are made the Test Selection menu appears The user must first make selection s of the tests to be run and then run the tests previously selected Selected tests have a Y in the Run Test column on the menu Normal choices are lt A gt to select all tests followed by lt C gt to execute them Individual tests can be selected with lt number gt and lt return gt lt C gt with no tests selected causes the program to exit For example here is the test selection menu as it initially appears TEST S
111. on is obtained by connecting the alligator clip to one of the cable sock retaining hooks The hooks are located below the standards verification panel and underneath the VELCRO closure See figure DCREFCAL DVM Connections 11 Ifthe response was y press lt return gt If the meter has been connected properly to the IEEE interface the voltage verification measurements are made first followed by the resistances If the IEEE bus is not being used enter the readings manually When entering the measurement results manually include the decimal point 12 The last resistance measurement to be verified is 50 ohms After completing this measurement manually or via the IEEE bus an example of the table is displayed If all the readings in the table pass enter y and press lt return gt To record the constants as the current table If any failures exist respond with n and press lt return gt Failures are indicated by F 13 The main menu is displayed If failures occurred in the previous step and n was the response type 0 to exit the menu level and troubleshoot the problem If y was the response enter menu selection 2 Save the current table This saves the current table on the AD412 EEPROM 14 Enter menu selection 6 Data retention verification Ensure data retention is verified 15 Enter menu selection 4 Create file of all stored tables This creates a file called DCREF_HISTORY which is stored in the current working directory
112. ons to the DIB when testing is completed Catalyst Calibration Manual cx CED Note If the system fails the peak to peak edge skew the channels that define the range are identified in the summary at the bottom of the datalog To isolate a faulty board try swapping CDM or CDTH and note whether the problem follows the swapped board Note If the autodetect feature is disabled press Enter to begin testing Troubleshooting Tip The first time the digitizing oscilloscope is used to run this process the scope s frame memory must be Declassified This is accomplished by pressing the utility button below the display and selecting System Config and Declassify Frame Memory This procedure is required only the first time the scope is used Catalyst 1GHz VHF Digitizer CV This process validates the instrument s calibration to Level IV requirements When performed regularly at the prescribed time interval NIST traceability of the instrument 1s maintained All guaranteed ESSD amplitude accuracy and DC accuracy specifications are tested Run time for the test process 1s approximately 30 minutes excluding test setup Program Name vhfd_cv Equipment Required HP8657A Frequency Synthesizer 804 785 00 Catalyst 1GHz VHFD CV DIB 807 326 04 4 BNC SMA cable 356 2161 16 BNG BNC Cabi Catalyst Calibration Manual 79 qa ij caD CED 80 CV Test Setup The following setup for the test process is also presented at run time via t
113. or PLFdig the user 1s prompted to choose one of each to be used during the CV process The test head slot location of the channel card for the instrument is listed in brackets after each choice For example Choose PLF Source in TH Slot to test lt I gt a lt 7 gt L ENTER OPTION and lt return gt Choose PLF Digitizer in TH Slot to test lt 1 gt 4 lt 2 TLO ENTER OPTION and lt return gt If only one instrument is in the system a choice is offered the program goes directly to the connection prompts 10 11 A prompt is displayed with specific test head slot connector labels for connection of the DIB port slot jumper connections pn 800 487 00 For example if the PLFsrc channel card in test head slot 3 the following prompt appears Connect the PLFsrc in test head slot 3 to J10 on the DIB Using cable pn 800 487 00 connect pin 1 of J10 to pin 1 of SL3 Pin 1 on cable pn 800 487 00 is identified by the white marking Pin 1 on the J10 and SL3 connectors is always the pin closest to the stenciling on the DIB If the PLFdig channel card 1s in test head slot 4 the following prompt appears Connect the PLFdig in test head slot 4 to J12 on the DIB Using cable pn 800 487 00 connect pin 1 of J12 to pin 1 of SL4 Pin 1 on cable pn 800 487 00 is identified by the white marking Pin 1 on the J12 and SL4 connectors is always the pin closest to the stenciling on the DIB 65 i Pre TY pao por
114. pecification performance For customers whose process controls require documented evidence of instrumentation performance at the device interface level 4 provides a traceable path Note To achieve traceability all external equipment must be traceable to national or international standards via a user provided traceable path However Teradyne understands that different sites may need or want to develop a modified calibration strategy that best fits their company needs To further aid customers in tailoring a calibration strategy that best fits their equipment needs several calibration products and services are provided These are identified and defined in the section Calibration Products and Services Catalyst Calibration Manual 5 qi ij caD CED Level 1 Internal Autocalibration These programs are executed at job run time to measure and electronically adjust the test system instrumentation The programs use internal system references to maintain the published accuracy specifications Level 2 Internal External System Checkers These programs are executed at the recommended interval to verify proper operation of the functions of a specific instrument or subsystem In some instances where the accuracy of the internal calibration path permits these checkers provide full calibration against specifications Most often they are self test ST programs that do not require the use of any external fixtures or instrumentation A small n
115. pment Required for Optional Traceability Process Refer to VHF Digitizer CV Very High Frequency Digitizer Specification Support Description This section describes the specification support for the very high frequency digitizer VHFD The procedure to support this instrument is contained in section VHF Digitizer CV The VHFD specifications are described in the appropriate section of the Catalyst System Specification Manual pn 553 403 56 The specification support is broken up into two sections The first section includes support for the general specifications for the VHFD The second section supports the frequency range dependent specification of sine wave level accuracy All specifications for the VHFD require that no hardware or firmware adjustments be made to ensure performance The frequency accuracy of the VHFD 1s derived directly from the RF synthesizer which serves as the time master clock for the system and thus is the working frequency reference for the AC instrumentation Traceability of this reference is maintained by performing the recommended annual calibration of the system LA302 10 MHz frequency reference as described in section LA703 10 MHz Master Reference Module Calibration Setup General Specifications Traceability of the guaranteed specifications is provided via support programs for the VHFD The general specifications that are guaranteed excludes typical and nominal include the DC specifications of the instrumenta
116. pn 804 785 00 onto the test head Connect the HP 11722A Power Sensor to the HP 8902 s RF Power connector for calibration After calibration the sensor is connected to the DIB s N type adapter Connect an SMA to 2 pin cable pn 807 322 00 to the SMA side of the N connector The 2 pin receptacle end of the cable then should be connected to channel A Refer to the software screen output for further instruction Connect the 2 pin receptacle end of another SMA to 2 pin cable with channel B Connect the SMA end to I6A on the strain relief bracket Connect the 50 Q terminator pn 359 083 00 to I6B of the bracket For step attenuation the 10 dB attenuator pn 359 149 00 should be connected to the N connector and the HP 11722A should be connected to the pad Refer to the software screen output for further instruction The GPIB address for the external HP 8902 must be set as follows HP8902A 14 Checker Test Execution 1 2 3 4 5 Catalyst Calibration Manual Load and run the VHFAWG400 DIFF CV program The load file name is vhfaw 400_diff_cv_catalyst load Follow the program instructions for instrument traceability and connecting the test setup as described in section Checker Test Setup The Main menu has two options e Select option 1 Run All Tests to perform one full CV test set on one VHFAWG400 DIFF Run time for this automated test process 1s approximately 20 minutes A datalog is automatically created
117. pt Set the termination mode under the RUN button to Continue on error Run the checker by typing run and pressing lt return gt Follow the instructions provided and answer the questions in the following menus At the command menu enter 1 and press lt return gt Displays may vary at this point depending on the revision of the checker Answer the questions appropriately Before answering the questions regarding communication via the IEEE interface the meter must be connected If the answer is y press lt return The meter selection and setup are displayed Connect the meter as stated in the section Setup above before pressing lt PevULn If the response was y press lt return gt to the question regarding communicating using the IEEE bus and the meter has been connected properly the resistance verification measurements are performed If the IEEE bus is not being used enter the readings manually When typing in the measurements manually include the decimal point The last resistance measurement to be verified is the 1 Q measurement Upon completing this measurement whether manually or via the IEEE bus IF all the readings in the table pass then enter y and press lt return gt This records the constants as the current table If any failures exist enter n and press lt return gt Failures are identified by F The main menu is displayed again If any failures had occurred in the previous step enter 0 to exit menu lev
118. r Run time for this test process 1s approximately 30 minutes A datalog is automatically created Select option 2 Options Menu for a list of program options The options menu includes some of the following features e Loop CV a User Defined Number of Times e Run Specific CV Tests e Reset the Program for a New Board Recommend between CV runs to ensure proper test setup Catalyst Calibration Manual qi CE caD CED e Review Test Setup Connections e Explanation of Test Numbers and Labels 4 Repeat Steps 3 and 4 for each 1GHz VHF Digitizer in the system Note User Power Stored Data Bits and Matrix Lines must be operational The continuity checker can be run to verify their functionality VHF Digitizer CV This process validates the instrument s calibration to Level IV requirements When performed regularly at the prescribed time interval NIST traceability of the instrument is maintained All guaranteed ESSD amplitude accuracy specifications are tested Runtime for the test process is approximately 30 minutes excluding test setup Program Name vhfd_cv Equipment Required Table 11 N pug BNC al Catalyst Calibration Manual 81 T i 82 cD Giz Checker Test Setup The following setup for the test process is also presented at runtime via the test station window when the program is run 1 Install the DIB pn 804 785 00 onto the test head 2 3 4 5 6 Manually mate the DIB
119. r and the LA723 PLF CV DIB to record the performance of the PLF instrumentation These measurements provide traceability to national standards as long as e The HP 3458A is periodically calibrated with traceable standards in accordance with the vendor s recommended calibration procedure The following specifications are traced using this procedure PLF Source e AC amplitude accuracy e DC linearity error e DC offset e DC offset drift PLF Digitizer e AC amplitude accuracy e Waveform linearity error e Input linearity error e DC offset e DC offset drift The cat_plf_cv process uses the HP 3458A multimeter to record the sine wave amplitude accuracy waveform linearity error output linearity error DC offset and DC offset drift of the PLF source The PLF digitizer is connected in parallel with the HP 3458 to the PLF source to measure its sine wave amplitude accuracy waveform linearity error input linearity error and DC offset drift performance by comparing its measurements to the measurements made by the HP 3458 meter A datalog of both the source and digitizer performance can be generated while running this process to record the results PMM Specification Support Summary schedule Every 24 hours e Run autocalibration calibrate pmm dcv acv ohms or job plan equivalent Weekly e Run catalyst_continuity_mi and pmmst in syscheck brief mode Catalyst Calibration Manual 121 qm ME cD CED Monthly e Run cata
120. ration on the DC voltage modes of the PMM This calibration takes 2 2 minutes acv Perform calibration on the AC voltage modes of the PMM This calibration takes 1 1 minutes ohms Perform calibration on the resistance modes of the PMM This calibration takes 11 minutes You can specify one calibration routine or several Catalyst Calibration Manual 21 cis ij caD CED 22 Do not interrupt calibration by using Ctrl C Interrupting calibration returns control to you but the PMM will not be calibrated You can also calibrate the PMM from within your test program Use the set pmm cal_mode statement to tell the PMM which autocalibration routine or routines to run set pmm cal_mode dc run the DCV routine set pmm cal_mode ac run the ACV routine set pmm cal_mode ohms run the OHMS routine set pmm cal_mode all run all the routines Alternatively specify a combination of routines by enclosing them in parentheses separated by spaces For example set pmm cal_mode dc ac run DCV and ACV Then use the set pmm cal statement to tell PMM when to run the autocalibration routines you selected The choices are set pmm cal off Do not run them set pmm cal once Run them when a set pmm statement is executed a set pmm cal on Run them on a regular basis usually every four hours Normally autocalibration information is bundled into a single set pmm statement such
121. rce slot 19 2 Enter the number of the option to verify Note The following steps will be displayed only the first time through this process 3 Attach the 866 532 00 DIB to the test head Note For systems with an interim pipe pan substitute the 866 533 00 DIB 4 Set up the HP E4418 power meter for testing by Plugging the AC power line into an outlet Connecting a GPIB cable from the system to the meter Attaching the power sensor and power sensor cable Setting the GPIB address to 13 5 Set up the HP 83623 synthesized sweeper for testing by Plugging the AC power line into an outlet Connecting a GPIB cable from the meter to the sweeper Attaching the SMA f end of the GPIB cable to the RF output Connecting the system s 10 MHz Ref to 10 MHz Ref Input Setting the GPIB address to 19 6 Enter the serial number of the HP E4418 power meter 7 Enter the calibration due date of the HP E4418 power meter 8 Enter the serial number of the HP E4412A power sensor 9 Enter the calibration due date of the HP E4412A power sensor 10 If the HP E4412A power sensor has been zeroed and calibrated enter Y Otherwise enter N and follow the instructions on the screen Note The HP E4412A power sensor must be zeroed and calibrated before the first use after every hour or when the ambient temperature changes more than 5 F 15 C 88 Catalyst Calibration Manual cis CIE Note The program will prompt only for th
122. red data bits analog and digital instrument connections and other miscellaneous signals For a detailed description review the Support Program Document SPD section of the catalyst_continuity_mui tl source code located in the directory image ckr_bin 6 3 or the latest version The SPD is at the beginning of the file The matrixst checker program tests the performance of the DC connections through the basic DC matrix This includes testing for independence of all lines and pins force and sense connections and digital readback Catalyst Calibration Manual cx CED Traceability The accuracy of the APU is based on a series of comparisons of instruments to references internal to the system These references can be compared to external standards establishing a path to nationally accepted standards This section describes the basic mechanisms that perform the comparison and verification of reference and instrument performance The path of comparison and verification is as follows e External standard to internal standard dcrefcal e Internal standard to instrument performance autocalibration calibrate apu e Verification of autocalibration and instrument functionality apust e Verification of Path Performance Internal matrix matrix_st Test head device area catalyst_continuity_m1 External Standard to Internal Standard The DC reference module AD412 board provides 14 voltage reference levels and five resistor referenc
123. requency range dependent specifications by connecting each VHFAWG400 DIFF and VHFAWG1200 to a VHF digitizer via the test head THADS bus In general the vhfst program checks specification performance to test limits that equal the summation of the VHFAWG400 DIFF and VHFAWG1200 and VHF digitizer specifications Since in most cases the VHEAWG400 DIFF and VHEAWG1200 and VHF digitizer have very similar performance the test limits for these tests in vhfst is approximately twice the instrumentation specification Catalyst Calibration Manual rm D cD CED VHFAWG400 DIFF and VHFAWG1200 Traceability The final level of specification support can be used to periodically record full system performance to maintain specification traceability If desired an annual check can be performed by running the vhfawg_400diff or vhfawg_1200 process These processes use external instrumentation that when supported with the vendor s recommended calibration procedures via traceable measurements provides a traceability path for the following AC specifications of the VHFAWG400 DIFF and VHFAWG1200 e Absolute level accuracy e Step attenuation relative accuracy The vhfawgcv processes use an external instrument to record the performance of the VHFAWG400 DIFF and VHFAWG1200 The program will guide the operator through the process with instructions that appear on the test system s user computer workstation A datalog of the VHFAWG400 DIFF and VHFAWG1200 performan
124. round although a provision is made to allow for nongrounded operation During DC subsystem calibration current flowing through the resistor HF to LF produced by the V I source generates a voltage across the resistor proportional to the current This current can be accurately measured via the sense connections with a voltmeter The AD412 has an extra safety feature An automatic shutoff circuit removes the resistor from the matrix pins after a predetermined time of approximately 10 ms to prevent excess power dissipation The resistance standards are available to the test system on matrix pin 3 to ground Matrix pin 2 is used as an LF LS connection when making external measurements to reduce system ground errors from affecting the measurement External Connections Two 20 pin connectors on the flipper end of the board J3 and J4 are used to program the voltage and resistance references to other instrumentation in the system for calibration purposes The external connectors J3 and J4 are daisy chained and are active when programmed to external mode Internal connections to the matrix and external connections cannot be selected simultaneously Checker Execution Checkers may require a password If so contact the system administrator to obtain it Equipment and Setup for dcrefcal DCREFCAL is used to measure and store the errors associated with the AD412 voltage and resistance references DCREFCAL is used in the Catalyst IMAGE environmen
125. s Setup for dcrefcal Precision Multimeter PMM pmm_xcalmipmm xcal mi Procedure hsd_edge_cv hsd edge CV atms cat cvatms cat cv plf_cat_cv Cat pul CV lfac_cat_cv cat Ifac cv vhfd_catalyst_cv VHF Digitizer CV vhfawg400_diff_catalyst_cv V awg400 iff System Check full Base System full mode System Check derefcal Eguipment and Continuity Checks monthly Setup for dcrefcal catalyst_continuity_mi all tests freq_ref_mi LA703 10 MHz Precision Multimeter PMM Master Reference Module Calibration Setup hcurefcal Equipment and Setup for RE CV vhfawg1200_catalyst_cv vhfawg 1200 cv pmm_xcal_mi pmm xcal mi vhf Procedure tid_cv tid c uw6000 cv EA Procedure qa ij caD CED Calibration Equipment Detail Matrix Ga Where Used Manufacturer Description Options B Quarterly Annually Agilent HP 3458A Digital Multimeter option 002 10 DC HCU DC LFAC w High Stability Option PLF HCU Fluke 742A 10k Reference Standard N A PMM 5440A 7002 Low Thermal EMF Cables Hewlett Packard HP53131A Frequency Counter option 010 11 freq_ref_mi 3 week calibration c Hewlett Packard HP8902A Measuring Receiver VHFAWG VHFD VHFCW HP11722A 100 KHz 2 6 GHz Sensor Module Hewlett Packard VHFAWG VHFD Hewlett Packard HP8657A Synthesized Signal Generator Hewlett Packard HP54750 Digitizing Scope Hewlett Packard HP54751A 2 Channel 20 GHz Plug in Hewlett Packard HP8657 Signal Source A or B Hew
126. s The path out to the DIB is verified by the catalyst_continuity_mi checker The calibration of channel to channel skew is performed by the start cal_set statement This 1s executed at least once when the job is first loaded and then as needed after the first calibration is performed Calibration can be triggered either manually or through the autocalibration procedure described in the IMAGE User Manual This calibration process uses an internal TDR subsystem distributed through a relay tree to calibrate the skew between each channel The calibration is verified using the hsd_edge_cv process This process measures the skew of all the HSD channels in each test head This verifies the performance of the TDR subsystem the relay tree and the deskew process Catalyst Calibration Manual 113 To i 114 cD Giz High Speed Digital Subsystem Traceability Overview DC Specifications DC specifications The performance is verified by the Level II checkers Each channel s per pin parametric unit PPMU is connected to the DC subsystem using the channel s internal matrix connection DC levels currents and impedances are verified against the DC subsystem s instrumentation Dynamic specifications The performance is verified by the Level II checkers A series of measurements 1s made using the channel s driver and receiver The dynamic performance is verified against the channel s DC specifications The signal quality of the output p
127. s an overall summary message on the checker It states which meter can be selected for remote operation IEEE This differs depending upon the revision of the checker Press lt return gt 6 The main menu is then displayed Respond with 1 and press lt return gt to collect a new set of correction data This selection does not change the data stored on the AD412 7 Displays may vary at this point depending upon the revision of the checker Answer the questions appropriately 8 Before answering the question regarding communicating via the IEEE the meter must be connected If y is the response to the question to communicate via the IEEE interface respond with 2 since only the HP 3458 supports Catalyst specifications 9 After responding with 2 to question 9 the following setup message is displayed See figure Calibration Setup Message Catalyst Calibration Manual 35 qi ij caD CED Before calibrating references THREE connections must be made between the meter and the STANDARDS VERIFICATION jack Connect the DVM voltage inputs to the jack labeled olto 4 Connect the DVM ohm inputs to the jacks labeled OHMS Connect the DVM GUARD input to systems ground Make sure the guard button is set to OPEN not depressed The HP listen address must be set to decimal 10 Hit RETURN to continue gt Calibration Setup Message 10 Connect the meter before pressing lt return gt A suitable system ground connecti
128. s provides a magnified view of one of the analog slots Interfacing to each of the eight signals is performed by connecting the cable pn 807 322 00 to the appropriate pair of header pins Note that the coaxial cable pn 807 322 00 provides a white dot on the 2 pin header housing This dot indicates the location of the outer conductor of the cable The outer conductor or shield must always be connected to a DIB ground signal The LA785 DIB silk screen information provides the slot number and pin location of the signal center conductor Catalyst Calibration Manual 135 Channel A Interface Pins Inner Circle Indicates Ground Channel B Interface Pins Channel C Interface Pins Inner Circle Indicates Ground Inner Circle Indicates Ground lt T fered un LA785 Analog Channel Interface Pins Digital Instruments Digital instrument interfacing is accomplished on a channel by channel basis with each of the 384 possible digital channel outputs being identified Each channel has an accompanying ground signal For more information on ground signals see Ground Signals The figure LA785 Digital Channel Interface Pins provides a magnified view of one area of the digital interface Due to spacing constraints on the DIB the full channel numbers could not be silk screened onto the DIB adjacent to the connector Therefore for each group of eight signals represented by a test head channel card the first and last signals are fu
129. se Usage Interval calibrate dc Autocalibration of DC subsystem 4 hours calibrate apu Autocalibration of APU 4 hours DC reference calibration 90 days Performance Test Table 4 2 Program Purpose Usage Interval dcst Instrument performance test 1 week brief mode 1 month full mode apust Instrument performance test 1 week brief mode 1 month full mode catalyst_continuity_mi Connection performance test 1 week 90 days Connection performance test 1 week 90 days Brief Summary of Each Program calibrate dc calibrate apu Catalyst Calibration Manual Autocalibration is a process wholly internal to the system that compares the actual values of the DC source or voltmeter against standards located on the AD412 reference card The transfer function of the source forcing and metering functions are evaluated for e Gain and offset Voltage and current e Linearity Voltage only The transfer functions of the meter inputs vm1 vm2 and vmdif are evaluated for e Gain and offset APU calibration compares the actual values of the APU source or APU meter against standards located on the AD412 reference card The transfer function of the APU forcing and metering functions are evaluated for 97 o i 98 dcrefcal dcst apust cD Giz e Gain and offset Voltage and current Corrections to the transfer functions are calculated and stored in memory The dcrefcal calibration program uses an external meter
130. ss 1s approximately 30 minutes A datalog is automatically created e Select option 2 Options Menu for a list of program options The Options menu includes the following features e Loop CV a User Defined Number of Times e Run Specific CV Tests e Reset the Program for a New Board e Review Test Setup Connections e Explanation of Test Numbers and Labels Recommend between CV runs to ensure proper test setup 5 Repeat steps 3 and 4 for each VHF Digitizer in the system Catalyst Calibration Manual cx CED Note User power and stored data bits must be operational HP 8902 Measuring Receiver HP 8657 Synthesizer GPIB Address 14 GPIB Address 7 PN 359 164 00 K N M SMA F PN 807 326 04 PN 807 326 01 DIB Strain Relief Bracket HP 11722 6 O Sensor O PN 807 326 01 PN 807 326 01 C ao PN 807 322 00 X4 VHF Slot Header Inputs DIB PN 804 785 00
131. st a variable or a field These statements initiate calibration of the AC linearity of the PLFS digital to analog converter This routine takes about 30 seconds and is executed when you power up the test system and load a test program for the first time It also happens each time autocalibration is run Subsequent program loads do not require recalibration Very High Frequency Arbitrary Waveform Generator VHFAWG The VHFAWG instruments VHFAWG gt VHFAWG1200 must be calibrated to maintain fine attenuation linearity and absolute level accuracy specifications Use IMAGE to automatically calibrate the VHFAWG and the test system by using the autocal1 switch when you load your test program The autocal switch causes IMAGE to automatically calibrate the VHEAWG instruments and the test system after the first run provided the test system passed calibration during the first run of the test program IMAGE monitors the temperature and recalibrates the VHFAWG if the temperature variation 1s outside the specifications The calibration data for the test system 1s updated after each calibration If you do not use the autocal switch your test program must calibrate the VHFAWG instruments and the test system at the proper intervals to maintain test system specifications If you enable autocalibration change the interval between calibrations with the following function Time is the interval in seconds between calibration runs tl vhfawg_cal
132. standard used during the calibration process e The name serial number and calibration date of the 10K standard used during the calibration process e The offset voltage and resistance of the PMM input path e The entered values of the external 10V and 10K references The program operates in the following sequence e Information is collected regarding the equipment used e The jumper cable connections are checked for proper hook up e The PMM input path s offset voltage and resistance are measured e The meter s internal DC voltage standard is calibrated using the external 10V reference and a DC autocalibration is performed e The meter s internal resistance standard is calibrated using the external 10K reference and an ohms autocalibration is performed e An AC autocalibration is performed At the end of the program the PMM s internal DC voltage and resistance references have been externally calibrated and the PMM has been autocalibrated After each connection setup the program waits 5 minutes before actually making the reading to allow the relay junctions in the signal path to reach thermal equilibrium To ensure accuracy during program execution the system covers must be installed The connections between the DIB and the external references should not be subjected to air currents or thermal gradients If the meter reports an error during the external calibration process perhaps due to a setup error pmm_xcal_mi displays the co
133. stem and thus is the working frequency reference for the ac instrumentation Traceability for the LFAC instrumentation frequency accuracy 1s maintained by performing the recommended annual calibration of the LA703 10 MHz frequency reference as described in section LA703 10 MHz Master Reference Module Calibration Setup Traceability of the guaranteed specifications is provided via support programs for the LFAC instrumentation The general specifications that are guaranteed excludes typical and nominal include the DC specifications of the instrumentation and some of the frequency range independent AC specifications Traceability of these specifications 1s maintained by following the support procedure for the DC subsystem as described in section DC Specification Support Summary The traceable DC subsystem is then used to record the DC performance of the LFAC instrumentation To periodically record the results of this check to aid in the record keeping for calibration the LFACST program can be run with the system data logging function enabled to record the test results It is recommended that Ifacst be run weekly in brief mode and monthly in full mode to ensure full functionality of the LFAC instrumentation The Ifacst program through the use of the DC subsystem is used to record the performance for the following LFAC specifications LFAC Source e Peak output voltage e Waveform range and resolution e Output current e Output impedance Catal
134. stem reference All channel card DC level specifications rely on calibration to achieve their accuracy The Verification path is external standard to internal standard Catalyst Calibration Manual nm jz cD CED Dynamic Specifications Verification of the dynamic specifications of the HSD subsystem transfers the DC level accuracy specifications to dynamic measurements Traceability 1s via the DC path described in section DC Specifications Timing Accuracy Specifications Verification of the timing accuracy specifications of the HSD subsystem transfers the frequency time accuracy specification of the LA703 10 MHz system frequency reference to the timing accuracy measurements The accuracy of the frequency reference is based on measurements of its performance to an external standard All timing accuracy specifications rely on calibration to achieve their accuracy The path of comparison and verification is as follows e External standard to internal standard LA703 10 MHz system frequency reference calibration See section LA703 10 MHz Master Reference Module Calibration Setup for more information e Internal standard to instrument performance Autocalibration calibrate hsd e Traceability of Autocalibration hsd_edge_cv e Instrument functionality System check in full mode catalyst_continuity_m1 Low Frequency AC Specification Support Summary Schedule Weekly e Run lfacst and Ifac_ams_st in brief mode e Run
135. t The errors found at each reference voltage and resistance are stored in an EEPROM on the AD412 board The DC calibrator can use the reference corrections to provide accurate DC references When a system is shipped from the factory the dcrefcal constants are set to zero and the system is verified to meet specifications at this setting Catalyst Calibration Manual 23 qa ij caD CED Equipment Required HP 3458A 002 Digital Multimeter with High Stability Reference From the Base Reference CAL Tool Kit pn 803 800 00 2o 358 216 04 BNC Test Cable Assembly 2o 358 692 00 Adapter BNC Jack to Banana 901 258 00 Alligator to Banana Required Catalyst System Configuration Matrix pins 1 through 3 and the AD412 reference board are required to run dcrefcal Note This procedure assumes the Catalyst system is running IMAGE software To stabilize the reference system power must be on continuously for 30 minutes with all system covers closed before executing this procedure Standards Verification Connection Two BNC connectors labeled J4 OHMS and J5 VOLTS are located on the central plate on the front of the Catalyst mainframe cabinet HP 3458A Meter Setup and Calibration Autocalibrate the HP 3458A meter The HP 3458A must undergo autocalibration every 24 hours 1 Disconnect any leads to the meter 2 Press the auto_cal key then the up arrow key This calibrates ALL modes 3 Press the Enter key to begin This takes approxi
136. tability The 100 MHz reference can be enabled or disabled by a signal sent out by the LA620 00 BIF data interface board The LA703 00 10 100 MHz reference module is mounted in the upper left section of the service side above the computer card cage 10 MHz Reference Oscillator The 10 MHz OCXO has excellent temperature stability and phase noise performance that exceeds synthesizer specifications Using the crystal bandpass filter inside the synthesizer s 10 MHz path further improves the phase noise performance for UHF instrumentation 10 MHz External Input The external input can be used either to couple the onboard 10 MHz OCXO into the reference board or the user can connect his own 10 MHz reference oscillator with a gt 7 dBm sine 50Q termination to the external 10 MHz input which then becomes the reference Reference Distribution Circuitry An SMA connector 1s provided for access to the direct output of the OCXO Normally an external jumper cable is used to connect the OCXO output to the external input When using an external 10 MHz signal connect the signal to the external input instead of the jumper At the input there is a 2 dB attenuator pad that is used to correct the level at the sine outputs and to provide a 50Q input impedance Following the 2 dB pad two amplifiers are used to buffer two separate signal paths One path has three parallel buffers to provide the sine outputs and the other path 1s used to convert the si
137. talyst Level III Tool Kit 806 166 00 Catalyst Continuity Kit HCU Calibration Verification Description The HCU specifications as described in the Catalyst Advanced Mixed Signal Test System Specifications pn 553 403 56 are maintained through the following programs 108 Catalyst Calibration Manual r CE cx CED Calibration Table 4 1 Program Purpose Usage Interval calibrate dc Autocalibration of DC subsystem DC reference calibration 90 days HCU reference calibration 90 days Performance Test Table 4 2 dcst Instrument performance test 1 week ae mode 1 month full mode hcust Instrument performance test 1 week brief mode 1 month full mode catalyst_continuity_mi Connection performance test 1 week 90 days Connection performance test 1 week 90 days Brief Summary of Each Program calibrate dc HCU calibration dcrefcal hcurefcal Catalyst Calibration Manual Autocalibration is a process wholly internal to the system that compares the actual values of the HCU source or HCU meter against standards located on the AD412 reference card The transfer function of the HCU forcing and measuring functions are evaluated for e Gain and offset Voltage and current The dcrefcal calibration program uses an external meter the HP 3458A to measure and store the errors of the DC reference voltage sources and resistors located on the AD412 reference card These errors are used to correct the reference
138. the HP 3458A to measure and store the errors of the DC reference voltage sources and resistors located on the AD412 reference card These errors are used to correct the reference values used during autocalibration They are stored in an EEPROM on the reference card set The calibration history of the DC reference can be extracted from the EEPROM and examined for stability The dest calibration program checks all aspects of performance of the DC subsystem The voltage and current forcing and measuring functions are checked at several points per range usually including values that are not part of the calibration algorithm The values are tested against the system references where appropriate including points not directly related to calibration Miscellaneous features and functions are also tested The apust checker program checks performance of the APU The voltage and current forcing and measuring functions are checked at several points per range usually including values that are not part of the calibration algorithm The values are tested against the system references where appropriate including points not directly related to calibration Miscellaneous features and functions are also tested catalyst_continuity_mi matrixst The catalyst_continuity_mi checker program is designed to verify continuity that is no opens or shorts of all signals provided to the test head The signals include matrix and DUT sources force sense and guard sto
139. the program 5 When the program is completed disconnect all external equipment The process 1s now complete 10K Calibration Cable Connections PMMAHI l1 10K Reference High Current PMM A PMMALO 2 10K Reference Low 40K Reference Low Current PMMBH 13 BHI 10K Reference TOK Reference High Sense i PMM B ee 10K Reference Low TOK Reference Low Sense PMM A 10K Reference 40K Reference Guard Chassis Ground on Fluke ee Ground on Fluke PMM B Se 10K Reference Guard Chassis Ground on Fluke Alternate DC Calibration As an alternative method of maintaining PMM DC calibration a customer can choose to remove the HP 3458 meter from the system and calibrate it as an HP 3458 in a qualified calibration lab The internal meter temperature at calibration should be within 5 C of the internal meter temperature while operating inside the system If the internal temperature of the meter changes from its internal temperature at time of calibration by more than 5 C the PMM accuracy may be affected The precision multimeter section of the Catalyst System Specification Manual defines the relevant temperature coefficients to be considered for each specification affected See section Example Implications of Different Calibration and Operation Temperatures The internal temperature of the HP 3458 can be determined by using the HP temperature query command TEMP and the internal meter temperature at calibration can be obtained
140. tion These specifications are completely checked to full specification using the DC subsystem in the vhfst checker program Catalyst Calibration Manual cx CED Traceability of these specifications is maintained by following the support procedure for the DC subsystem as described in DC Specification Support Summary The traceable DC subsystem is then used to record the DC performance of the VHFD To periodically record the results of this check and to aid in the record keeping for calibration the vhfst program can be run with the system datalogging function enabled to record the test results It is recommended that vhfst be run weekly in brief mode and monthly in full mode to ensure full functionality of the VHFD The vhfst program through the use of the DC subsystem is used to record the performance for the following VHED specifications e Sample rate range e Sampling resolution e Time measurement access e Input impedances and voltages e DC offset performance e Filter specifications e IF sine wave distortion The vhfst checker checks all of the AC frequency dependent specifications by connecting each VHFD to a very high frequency arbitrary waveform generator VHFAWG via the test head THADS bus Since in most cases the VHFD and VHFAWG have very similar specification performance the test limits for these tests in vhfst up to 10 MHz will be approximately twice the instrumentation specification Frequency Range Dependent Speci
141. tion that when supported with the vendor s recommended calibration procedures via traceable measurements provides a traceability path for the following specifications of the VHFD e Amplitude accuracy The vhfd_cv process serves to maintain the VHFD amplitude accuracy traceability by performing a set of amplitude accuracy tests This set of amplitude tests is defined by the specifications called out in the ESSD CV test point selection is optimized for maximum coverage in all specified frequency and voltage ranges while minimizing redundancy in test coverage The vhfd_cv process uses two external instruments to stimulate and measure the performance of the VHFD The program will guide the operator through the process with instructions that appear on the test system s user computer workstation An HP8902 measurement receiver is used to record the sine wave amplitude accuracy performance while an HP8657 provides an input signal A datalog of the VHFD performance can be generated while running this process to record the results See section VHF Digitizer CV for more detail UW6000 Specification And Support Summary 132 Schedule e Every 4 hours Run autocalibration which contains the following checkers uhfsrc uwsrc uwport uwrecv or job plan equivalent e Weekly Run the following checkers uhfcwst uwst modsrcst in BRIEF mode Run the catalyst_continuity checker e Monthly Run the following checkers uhfcwst uwst and modsrcst i
142. to Fatt ferrets PLF Cable Connections 66 Catalyst Calibration Manual cx CED lt 1 gt lt 2 gt lt L gt lt 4 gt lt A gt lt B gt lt gt lt 3 gt lt A gt lt A gt lt C gt Catalyst Calibration Manual 12 After connections are made the Test Selection menu appears The user must first make selection s of the tests to be run and then run the tests previously selected Selected tests have a Y in the Run Test column on the menu Normal choices are lt A gt to select all tests followed by lt C gt to execute them Individual tests can be selected with lt number gt and lt return gt lt C gt with no tests selected causes the program to exit For example here is the test selection menu as it initially appears TEST SELECTION MENU Using PLES TH SLOT 3PLFD TH SLOT 4 Run Test Test Name SRC DIG N Amplitude Accuracy Y Y N DC Linearity Y Y N DC Offset Drift y y N DC Offset Y y Select All Tests Select No Tests Run SELECTED Tests or EXIT Enter a number to toggle between on and off on a given test Run Test N or Y Enter a letter to toggle between all on or off for all tests All run test N or Y Selection lt C gt runs selected tests Run Test Y or exits All Test N Enter a number or letter and press lt return gt After selecting lt A gt and pressing lt return gt the test selection menu appears as follows TEST SELECTION MENU Using PLFS TH SLOT 3PLFD TH S
143. truments transfer the accuracy of fundamental system references to other instruments This action is often not directly observable as in the use of the standard voltage current V I source used in the calibration of analog pin units APUs These internal transfer standards may also be accessible to the user as test system instrumentation Test System Instrumentation These instruments are directly accessible test system instrumentation The accuracy of many of the source or measurement functions of the instruments is linked directly or through an internal transfer standard to internal system references via internal software calibration processes Some of the source or measurement functions of these instruments do not have accuracy linked to any other system reference the instrument carries its own standard An example would be an instrument whose output levels are fixed by component values whose drift is expected to remain within design tolerances for the life of the instrument Traceability of these instruments is established by direct comparison with external standards as part of the level 4 field calibration process Catalyst Test System Internal System References Test System Instrumentation Internal Transfer Standard may be test system instrumentation Catalyst Calibration Manual Internal Calibration Path qa ij caD CED The simplified view o
144. uency accuracy 1s maintained by performing the recommended annual calibration of the LA703 10 MHz frequency reference as described in section LA703 10 MHz Master Reference Module Calibration Setup Traceability of the guaranteed specifications 1s provided via support programs for the PLF instrumentation The general specifications that are guaranteed excludes typical and nominal include the DC specifications of the instrumentation and some of the frequency range independent AC specifications These specifications are completely checked to full specification except PLFS DC Offset using the DC subsystem in the plfalst checker program Traceability of these specifications 1s maintained by following the support procedure for the DC subsystem as described in section DC Specification Support Summary The traceable DC subsystem is then used to record the DC performance of the PLF instrumentation To periodically record the results of this check to aid in the record keeping for calibration the plfalst program can be run with the system datalogging function enabled to record the test results It is recommended that plfalst be run weekly in brief mode and monthly in full mode to insure full functionality of the PLF instrumentation The plfalst program through the use of the DC subsystem is used to record the performance for the following PLF specifications e Peak output voltage e Waveform range and resolution e Output current e Output impedance e
145. ues to fail you could have a bad UWPORT channel card UHFSRC channel card Modulated Source or FS1000 Receive Side Process The program displays the menu shown in figure Receive Side Process Only channels and 3 require testing 1 After performing the receive side process on both channels enter x and return to step 2 of section UW6000 VNA Verification 2 Enter the desired option at the prompt RECEIVE SIDE PROCESS No Description 1 Channel 1 2 Channel 3 Enter a choice or X to Exit 1 2 1 Receive Side Process Menu 3 Perform the connection instructions on the screen and press lt RETURN gt to continue See figure Receive Side Verification Setup for an illustration 4 Ifthe test passed press lt RETURN gt and go back to step 2 If the test did not pass recheck the connections press lt RETURN gt and go back to step 2 and repeat the test of the desired channel Note If a channel fails more than once you may need to exit and restart the program to reflatten the sweeper If the channel continues to fail you could have a bad UWPORT channel card or UWMM channel card in the test head Catalyst Calibration Manual 91 ci GIE cul CED UW6000 Stand alone Source Verification Perform the connection instructions on the screen and press lt RETURN gt See figure Source Side Verification Setup Note The figure Source Side Verification Setup shows DIB connections labeled by VNA slot and channel number
146. ultiple same type instruments are present in the test system calibration must be performed for all those instruments individually Loading a test program does not automatically force calibration When run is typed the tester determines that calibration is required The DC subsystem and ATMS are calibrated before running the test program The program is then started When a start hsd_cal_set statement 1s encountered the HSD subsystem is calibrated The program then runs normally IMAGE does not take into account programs that call calibration themselves If the autocal switch is used with a program that issues a tl_system calibrate DC command for example the DC subsystem is calibrated twice Use of cron with calibration commands is not recommended Many of the instrument calibration routines use the DC subsystem as part of their calibration process If you do not use the autocal function and choose to individually calibrate instruments using the calibrate command then always calibrate the DC subsystem before calibrating any other instruments Catalyst Calibration Manual qa CE caD CED DC Subsystem Catalyst Calibration Manual For special circumstances you can set the calibration interval from a test program by using one of the following functions extern void tl_hsd_set_cal_interval extern void tl_tms_cal_set_interval extern void tl_apu_cal_set_interval extern void tl_plfs_cal_interval extern void tl_plfd_ca
147. umber are maintenance and installation m1 programs requiring the use of some type of external fixtures or instrumentation These programs are typically used to check the final connection path out of the system Level 3 External Calibration of Internal System References These programs are executed at some regularly defined interval They use external standards to measure and adjust internal system references Since these references have defined drift parameters these programs are designed to adjust these references Some of these references are base system references used by multiple instruments while others are references dedicated to a specific instrument type Traceability of the internal system references can be maintained using these programs provided that traceable external equipment is used and proper procedures are followed Level 4 Optional Test System Instrument Traceability Processes These programs are executed at some regularly defined interval to measure test system instrumentation performance to the user interface This performance is traceable to national or international standards These programs do not perform any adjustment of system instruments or references and are not required to maintain system performance They are used to establish and maintain system instrument traceability Calibration Products and Services Calibration Products System Calibration Certificate This is provided with every system purchased It is
148. umentation These measurements provide traceability to national standards as long as the HP 3458A is periodically calibrated with traceable standards in accordance with the vendor s recommended calibration procedure The following specifications are traced using this procedure LFAC Source e AC amplitude accuracy e DC linearity e DC offset LFAC Digitizer e AC amplitude accuracy e Waveform linearity error e Input linearity error e DC offset 117 rm dij caD CED The cat_lfac_cv process uses the HP 3458A mulitmeter to record the sine wave amplitude accuracy waveform linearity error output linearity error and DC offset of the LFAC source The LFAC digitizer is connected in parallel with the HP 3458 to the LFAC source to measure its sine wave amplitude accuracy waveform linearity error input linearity error and DC offset performance by comparing its measurements to the measurements made by the HP 3458 A datalog of both the source and digitizer performance can be generated while running this process to record the results Precision Low Frequency Specification Support Summary Schedule Every 4 hours e Run autocalibration autocal calibrate plfsrc plfdig or job plan equivalent Note IF autocal is invoked in the job plan load file PLF calibration will be automatically invoked by the system when required Weekly e Run plfalst plf_ams_st in brief mode e Run catalyst_continuity_m1 Monthly e Run plfalst plf_a
149. upgrade Layout of the 866 532 00 CV DIB 94 Catalyst Calibration Manual dois GIE cul CED 866 533 00 Catalyst Microwave CV DIB Slot 15 Layout of the 866 533 00 CV DIB Catalyst Calibration Manual 95 nm diz cD CED Overview Specification Support Summaries This chapter provides the specification support summaries for the e Internal Automatic Calibration Occurs automatically at test program load time e Internal and External System Checkers Invoked from the Checkers menu e External Calibration Procedures for Internal References Performed at system output jacks by Maintenance Engineers using specified electronic test equipment Analog Pin Unit APU Specification Support Summary Schedule Every 4 hours e Run autocalibration calibrate apu or job plan equivalent Weekly e Run catalyst_continuity_mi apust and matrixst in syscheck brief mode Monthly e Runcatalyst_continuity_mi apust and matrixst in syscheck full mode Quarterly e Run apust in full mode e Run matrixst in full mode e Run catalyst_continuity_m1 Equipment Required 96 e Catalyst Continuity Kit pn 806 166 00 Catalyst Calibration Manual cia CE caD CED APU Calibration Verification Description Calibration The specifications of the APUs as described in the Catalyst Advanced Mixed Signal Test System Specifications pn 553 403 56 are maintained through the following programs Table 4 1 Program Purpo
150. uted target isthe level on the waveform at which deskew is performed The range is from 20 to 80 The default is 50 Calibration failure is frequently caused by hardware failure System checkers should be used to determine the source of any failures that occur To execute the cal_set from within the test program use the following statement below start hed cal seb lt sgetiamne gt To immediately calibrate and deskew the test system and all channels present to the default values type the following statement calibrate hsd Internal External System Checkers Level 2 28 System Check The table System Check Programs lists all the checkers that are executed in full and brief modes of system check as of IMAGE Version 6 3 The list changes depending on system configuration The main difference between full and brief mode is that some sequencers are run in brief mode This causes fewer tests to be executed Catalyst Calibration Manual qi CE caD CED System Check Programs Common_frame_ck Catalyst_head_ck group group i ee et a ee ae ee et system Check Procedure Use this procedure to run the full complement of checkers with the exception of the mi and CV checkers 1 Verify that the test system power is on Log in to the system as checkers 2 Invoke the IMAGE program by entering the command image 3 Log in to Station 5 as checkers 4 Move the mouse pointer to the top section of the station wi
151. ution The 100 MHz clock signal CLK 100 is distributed to clients via differential LVPECL drivers These drivers are within the same IC which is designed specifically for clock distribution having guaranteed skew performance plus the ability to be enabled synchronously The enabling signal 1s issued by the CPU via the BIF Access to the CLK 100 signals is via 3 pin headers compatible with 50Q shielded 2 conductor cables In addition a sine output is provided via an SMA connector for potential use by a future RF microwave instrument as well as serving as a test port LA703 10 MHz Master Reference Module Calibration Setup This procedure is used to verify the LA703 frequency accuracy specification The LA703 is the frequency time standard in the Catalyst test system All PTS synthesizers are frequency locked to the LA703 10 MHz master reference module and do not require separate calibration Catalyst Calibration Manual 39 qa ij caD CED Equipment Required Co e en 1 HP 5313A 010 The timer counter used for this calibration must have been calibrated within three weeks of its use in this procedure An equivalent timer counter can be used if the frequency accuracy at the time of test is better than 0 2 Hz at 10 MHz From the Catalyst Level III CAL Tool Kit pn 803 800 00 358 216 04 BNC Test Cable Assembly Checker Execution The LA703 and HP 53131A must be powered on for at least 30 minutes before performing this procedure
152. utocal 16 Theory 16 Validity 18 Calibration Level 2 Calibration 28 catalyst_continuity_mi Procedure Equipment Required 30 Loading and Running 30 Description 6 GFS Maintenance Services 8 System Check 28 System Check Procedure 29 System Checkers Calibration Products 7 Support Level 3 Calibration 31 AD412 Board 31 dcrefcal Procedure 35 Description 6 Equipment and Setup for dcrefcal 33 Equipment Required 34 HP 3458A Meter 34 Standards Verification Connection 34 Equipment and Setup for hcurefcal 44 Equipment Required 44 hcurefcal Procedure 45 Setup 44 GFS Internal Reference Calibration Support Services 8 LA703 Adjustment Procedure 41 LA703 Calibration Setup 39 100MHz Reference Verification 41 Automatic Counter Control and Data Collection Method 40 Checker Execution 40 Equipment Required 40 Manual Calibration Method 41 LA703 00 XTAL Overview 37 100MHz Clock Distribution 39 1OOMHz External Internal Jumper 39 1OMHz External Input 38 10MHz Reference Oscillator 38 Reference Distribution Circuitry 38 Sine LVPECL Conversion 39 X10 Phase Lock Loop 39 Oscillator SIGIVALS RA AANAAA Overview of pmm_xcal_mi 46 Equipment Required 48 pmm_xcal_mi Procedure 48 10K Calibration 51 10V DC Calibration 50 Alternate AC Calibration 53 Alternate DC Calibration 52 Checking Jumper Wire Connections 50 Implications of Different Calibration and Operation Temperatures 52 Making Connections 49 Measurin
153. values used during autocalibration They are stored in an EEPROM on the reference card set The calibration history of the DC reference can be extracted from the EEPROM and examined for stability The hcurefcal calibration program uses an external meter to measure the errors of the reference resistors on the TJ151 00 HCU source analog board These errors are used to correct the reference values used during autocalibration 109 qm iis 110 dcst hcust exa gt zm The dest checker program checks all aspects of performance of the DC subsystem The voltage and current forcing and measuring functions are checked at several points per range usually including values that are not part of the calibration algorithm The values are tested against the system references where appropriate including points not directly related to calibration Miscellaneous features and functions are also tested The hcust checker program checks all aspects of performance of the HCU The voltage and current forcing and measuring functions are checked at several points per range usually including values that are not part of the calibration algorithm The values are tested against the system references where appropriate including points not directly related to calibration Miscellaneous features and functions are also tested catalyst_continuity_mi matrixst The catalyst_continuity_mi checker program is designed to verify continuity that is no opens or
154. verified Tolerance out of Beyond the allowable deviation from the expected value Performance Verification The process where a test system s performance against specifications is verified There are different categories of performance verification such as tolerance verification functional verification and design verification Traceability The definition of traceability used by Teradyne is derived from Dr Brian Belanger s NIST definitions of traceability e Traceability means the ability to relate individual measurement results to national standards or nationally accepted measurement systems through an unbroken chain of comparisons Primary Standard Reference Reference systems are of the highest accuracy order in a calibration system that is standard cells 4 terminal oil bath resistors and so on They are the basis for defining Teradyne s accuracy and are regularly compared against national standards Catalyst Calibration Manual nm jz cD CED Transfer Standard Designated measuring equipment used in a calibration system as a medium for transferring the basic value of reference standards to lower echelon transfer standards or measuring equipment Check Standard A stable characterized in house standard that is calibrated at periodic intervals to ensure that it is in tolerance documented control Catalyst Calibration Manual 141 SIGIVALS RA AANAAA Numerics 358 Part Numbers 358 216 04 3
155. working frequency reference for the AC instrumentation Traceability of this reference is maintained by performing the recommended annual calibration of the system LA703 10 MHz frequency reference as described in section LA703 10 MHz Master Reference Module Calibration Setup General Specifications Traceability of the guaranteed specifications is provided via support programs for the VHFCW The general specifications that are guaranteed excludes typical and nominal include the DC specifications of the instrumentation These specifications are completely checked to full specification using the DC subsystem in the vhfcwst checker program Traceability of these specifications 1s maintained by following the support procedure for the DC subsystem as described in section DC Specification Support Summary The traceable DC subsystem 1s then used to record the DC performance of the VHFCW To periodically record the results of this check and to aid in the record keeping for calibration the VHFCWST program can be run with the system datalogging function enabled to record the test results It is recommended that vhfcwst be run weekly in brief mode and monthly in full mode to ensure full functionality of the VHFCW The vhfcwst program through the use of the DC subsystem is used to record the performance for the following VHFCW specifications e Peak output voltage e Waveform range and resolution e Output current e Programmable DC baseline e Wave
156. y process 1 Load cat_plf_cv into the station under test by entering the following command Load Ccat plir cv load 2 Run the program and follow all instructions and user prompts displayed This series of instructions and prompts appears in the station window only for as long as the program takes to set up the array processor Starting PLF Calibration Verification Process The program then prompts the user to load the DIB assembly and make all external instrument setup connections 3 Load the LA723 DIB assembly pn 808 723 00 on the test head 4 Connect the HP 3458A meter to AC power 5 Connect the HP 3458A meter to the system GPIB port with a GPIB cable Note Make sure the HP 3458A GPIB address is set to 10 64 Catalyst Calibration Manual om i Note Catalyst Calibration Manual 6 7 8 9 exa gt ED Connect the HP 3458A meter input 2 wire HI and LO to the LA723 BNC jack labeled BNC1 EXT MTR using the BNC to BNC cable and the BNC to BANANA adapter Refer to figure PLFCV_ Catalyst Calibration Verification Connections Press lt return gt to go to the next screen The program then prompts for a serial number of the external meter Enter the serial number of the HP 3458A meter and press lt return gt The program then prompts for the calibration due date of the HP 3458A meter Enter the calibration due date of the meter and press lt return gt If the system has more than one PLFsrc
157. yst Calibration Manual qa CE caD CED e Programmable DC baseline e Overcurrent alarm detection threshold LFAC Digitizer e Input voltage range e DC baseline removal e Input impedance e DC offset Frequency Range Dependent Specifications LFAC Traceability Catalyst Calibration Manual The remaining frequency range dependent specifications are supported by two levels of support procedures These two levels of specification support are to record the performance of the LFAC source and LFAC digitizer frequency range dependent specifications The first is the lfacst checker which should be run on the recommended basis This program checks the AC frequency range dependent specifications by connecting each LFAC source to each LFAC digitizer via the test head THADS bus In general the lfacst program checks specification performance to test limits that equal the summation of the LFAC source and LFAC digitizer specifications Since in most cases the LFAC source and LFAC Digitizer have very similar performance the test limits for these tests in LFAC is approximately twice the instrumentation specification The final level of specification support can be used to periodically record system performance to maintain specification traceability If desired an annual check can be performed by running the cat_lfac_cv process This process uses an external HP 3458A multimeter and the LA723 PLF LFAC PV DIB to record the performance of the LFAC instr
158. ystem HSD if necessary HSD calibration takes place whena start hsd_cal_set statement is encountered in the test program Precision low frequency source and digitizer PLF Calibration takes place only if the PLFSRC and PLFDIG are in the system and one or both are used in the test program Very high frequency continuous wave source VHFCW Calibration takes place only if the VHFCW source is used in the test program Very high frequency arbitrary waveform generator VHFAWG This Calibration takes place only if one of the VHFAWG instruments is used in the test program Very high frequency digitizer VHFD Calibration takes place only 1f one of the VHFD instruments is used in the test program High speed sampler HSS Calibration takes place only if the HSS is used in the test program Time jitter digitizer TJD Calibration takes place only if the time jitter digitizer is used in the test program Precision multimeter PMM Calibration takes place only if the PMM is used in the test program The need for calibration is checked before each run of the test program This happens either when the run command is issued or when a start signal arrives from an enabled handler or prober Each instrument requiring internal calibration level 1 can become invalid for a number of reasons For example Catalyst Calibration Manual Time elapsing usually 4 hours but can be different for some instruments Temperature change greater

553-700-65 : Catalyst Calibration Manual

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