Agilent HP 83483A - Mr Test Equipment
Contents
1. e STM O 1 4 16 OC 1 3 12 24 48 and 9 953 Gb s e STS 1 amp STS 3 eye e Fibre Channel 133 266 531 1063 e FDDI e 100 BASE FX e GB Ethernet Custom mask testing The HP 83480A has a built in mask editor for creating and storing user defined masks and templates Up to eight polygons may be placed on the display defining regions where the waveform should not intrude Similar to standard masks the HP 83480A will log failures for each of the displayed polygons Masks may be created manually over GPIB or down loaded from the internal disk drive Color graded histogram display This is an infinite persistence display mode where color differ entiates the number of times data at any individual screen pixel has been acquired All points acquired are added to a database and then displayed as one of eight colors depending upon the number of acquisitions Automatic parametric measure ments may be made on the color graded display allowing evaluation of multi valued G e eye diagram waveforms Limit testing Signals can be tested by up to four automatic parametric measurements and compared to user defined test boundaries Failure tolerances can be selected independently for each of the parametric tests 4 On failure actions include 1 Save channel data to memory disk or printer 2 Save screen to pixel memory disk or printer 3 Save a text log summary of all failures with time tagging to disk o2. reading 0 4 hr A time a reading 20 GHz mode 4 of delta reading 2 C A tempcay reading 0 4 hr A time a reading de offset range 1 mW to 3 mW referenced to two divisions above bottom of screen Calibrated wavelengths 1310 nm and 1550 nm Wavelength range characteristic 1000 to 1600 nm Average power monitor Specified operating range 30 dBm to 3 dBm 1 pW to 2 mW Factory calibrated accuracy 20 C to 30 C 5 of reading 100 nW connector uncertainty User calibrated accuracy lt 5 C temp change 2 of reading 100 nW power meter accuracy Inputs Maximum specified input power characteristic 2mW Maximum safe input characteristic 10 mW peak Connector type 9 125 um single mode user selec table connector option Input return loss 33 dB HMS 10 HP connector Electrical channel specifications 12 20 GHz identical to HP 83483A page 13 HP 83482A amp 83485B e Integrated calibrated optical channel with 30 GHz response range characteristic e 40 GHz bandwidth electrical channel e Trigger port Optical channel specifications Bandwidth 3 dB HP 83482A dc to 30 GHz characteristic HP 83485B de to 30 GHz characteristic 4 Filtered bandwidth All available filter options conform to appropriate ITU Gigabit Ethernet and Fibre Channel reference receiver specifications Transition time HP 83482A 13 ps characteristic HP 83485B lt 16 ps unf
3. 12 20 62 5 125 um 750 870 2 85 gt 3 0 2or3 1063 1250 17 dBm 2488 HP 54753A 1 TDR Elec 12 18 amp 1220 HP 54754A 2TDR Elec 12 18 Clock Recovery Trigger Plug in Modules Tracking Module Operating Input Power Data Rates for Acquisition Contributed Module Input Level for Clock Recovery Insertion Loss Recovery Range Jitter HP 83491A 50 Ohm 10 to 3 dBm DC 2500 MHz 7dB 155 622 1060 1250 0 1 lt 0 0125 UI RMS Electrical 4500 MHz 10 dB 2120 2488 2500 Mb s HP 83492A 62 5 125 750 860 nm 13 to 3 dBm 5 0 dB max 155 622 1060 1250 0 1 lt 0 0125 UI RMS um 2120 2488 2500 Mb s HP 83493A 9 9 125um 1000 1600nm 20to 3dBm 1 5 dB max 155 622 1250 2488 0 1 lt 0 0125 UI RMS 2500 Mb s Option UK6 Commercial calibration certificate with data Option W30 3 years of customer return repair service Option W32 3 years of customer return calibration service Option W34 3 years of customer return compliance calibration service Option W50 5 years of customer return repair service Option W52 5 years of customer return calibration service Option W54 5 years of customer return standards compliance calibration service standards HP 83481A Select configuration for the two internal switchable filters Option 040 Fourth order 155 Mb s and fourth order 622 Mb s filters 20 Option 050 Fifth order 155 Mb s and fifth order 622 Mb s filters Option 052 Fourth order 155 Mb s and fifth order 155 Mb s
4. 200 mV source High Speed Mode Option 100 lt 2 ps rms for delay less than 100 ns with 200 mV pp from 2 0 GHz to 12 GHz sine wave input typical 1 3 ps Trigger Gating Levels typ Normal Mode Not available High Speed Mode Option 100 Standard TTL Disable 0 V Enable 5 V default Trigger Gating Delay typ Normal Mode Not available High Speed Mode Option 100 250 ns enable typ 850 ns disable typ Nominal impedance 50 Ohms Reflection 10 for 10 ps risetime Connector type 3 5 mm male Edge trigger Trigger on the positive or negative edge of the trigger input signal user selectable Hysteresis The trigger hysteresis can be set to one of two operating modes e Normal The trigger hysteresis is set to meet the trigger sensitivity specification e High sensitivity Hysteresis is disabled to allow for highest sensitivity to high frequency trigger sig nals This mode is not recommended when using noisy low frequency signals that may result in false triggers without hysteresis enabled Bandwidth limit The trigger signal is put through a low pass filter with an approximate 100 MHz band width Display Data display resolution 451 points horizontally by 256 points vertically Graticules User selectable as full grid axes with tic marks frame with no tic marks or no graticule Averaging The number of averages can be specified between 1 and 4096 using the numeric keypad The INCrement DEC
5. 4 lb HP 83480A K16 K17 Switch Matrix and RIMM Fixture Calibration is performed by using the supplied RIMM calibration boards These boards have the same form i R factor as a RIMM module PCB and are plugged into Ordering information the Low Insertion Socket found in the HP 83480A 3 HP 83480A digital communications analyzer K17 Rambus RIMM Fixture This unique calibration mainframe feature allows the user to set the reference plane at the RIMM socket not just the scope front panel Option 001 HP Eyeline Mode Software Disk contains After calibration TDR Normalization is then used software loaded directly into the HP 83480A main to remove any errors created by the test fixture and frame to control either the HP 71603B or HP 71612A switch matrix Highly accurate impedance measure error performance analyzer ments with no secondary reflections are the result Option 100 Enhanced trigger There is no need for offset compensation with expen Option 908 Rackmount kit without handles sive 28 ohm airlines Control software is provided Option 909 Rackmount kit with handles which allows switching via the HPIB interface Option OBW Service manual Option 0B1 Additional set of user documentation Static Protection Unit from Option OBO Delete user documentation Picosecon d ATE In c Option UK6 Measured performance data The Picosecond Inc Static Protection Unit Model HP 83481A 82A 85A 85B 86A 87A 1202 offers static damage protection for TDR
6. GHz electrical channel HP 83485B 9 953 Gb s filtered reference receiver and 40 GHz electrical channel HP 83486A 2 85 GHz 155 622 1063 1250 2488Mbit s multi mode integrated optical reference receiver and 20 GHz electrical channel HP 83487A 2 85 GHz 155 622 1063 1250 2488Mbit s multimode integrated optical reference receiver and 20 GHz electrical channel 750 to 860 nm wavelengths HP 83491A Electrical clock recovery module for 155 622 1063 1250 2125 2488 2500 Mb s HP 83492A Multimode optical clock recovery module for 155 622 1063 1250 2125 2488 2500 Mb s HP 83493A Single mode optical clock recovery module for 155 622 1063 1250 2488 Mb s HP 54753A 54754A TDR TDT modules The HP 83480A accepts the HP 54753A 54754A TDR TDT plug in modules with the HP 54750K firmware upgrade Compliance tests The HP 83480A offers a full range of industry standard masks for automated compliance testing Masks instantly align and scale to the displayed waveform or the waveform can be scaled and aligned to the mask Exceptional measurement speed results in rapid compliance testing This results in a significantly lower cost per test and gives you a big advantage in overall cost of own ership Test conditions can be set according to the number of wave forms number of samples number of failed waveforms or number of failed samples For guardband testing margin masks are easily created Standard masks available
7. OBO Delete user documentation Option UK6 Measured performance data Option W30 3 years of customer return repair service Option W32 3 years of customer return calibration service Option W34 3 years of customer return standards compliance calibration service Option W50 5 years of customer return repair service Option W52 5 years of customer return calibration service Option W54 5 years of customer return standards compliance calibration service 21 HP 54753 54754A TDR TDT plug in modules Option 001 Latest operating system firmware for the HP 83480A mainframe Option 002 Latest operating system firmware for the HP 54750A mainframe Option 003 Delete demo board Option 0B1 Option ABJ Japanese localization Option W30 3 years of customer return repair service Option W32 3 years of customer return calibration service Option W34 3 years of customer return standards compliance calibration service Option W50 5 years of customer return repair service Option W52 5 years of customer return calibration service Option W54 5 years of customer return standards compliance calibration service HP 54755A TDR Firmware for the HP 83480A mainframe Optional accessories HP 83446A B lightwave clock and data receiver HP 11982A high speed lightwave receiver HP 83440B C D high speed lightwave receiver HP 54118A 500 MHz to 18 GHz trigger HP N1020A TDR probe HP 54006A 6 GHz hand held probe HP 54701 2 5 GHz active Probe HP 83480A K16 sw
8. algorithm The integrated optical plug in modules yield the most accurate and repeatable extinction ratio measurement of laser transmitters In addition to extensive commu nications waveform analysis the HP 83480A also performs as a conventional high speed sampling oscilloscope performing the follow ing automatic measurements Duty cycle T min Period T volt V amplitude V avg V base V upper V top V middle Preshoot width Overshoot width V p p V lower V time FFT mag V min FFT delta freq V max FFt delta mag Delta time TDR min refl Frequency TDR max refl Vrms TDT prop delay T fall TDT gain T rise P avg optic ch T max Equivalent power measurements are also made on optical measurements Plug in modules for the HP 83480A The HP 83480A supports a large and growing family of plug in modules The HP 83480A main frame can hold two plug ins for a total of four measurement chan nels An extensive description of each plug in module is in the optical and electrical module sections found later in the prod uct overview HP 83481A 2 85 GHz 155 622 Mb s integrated optical reference receiver and 20 GHz electrical channel HP 83482A 30 GHz integrated optical channel and 40 GHz elec trical channel HP 83483A Dual 20 GHz electri cal channels HP 83484A Dual 50 GHz electri cal channels HP 83485A 20 GHz integrated optical channel SONET SDH 155 622 2488 and 9953 Mb s reference receiver and 20
9. filters Option 062 Fourth order 622 Mb s and fifth order 622 Mb s filters HP 83485A optical channel electrical channel 20 GHz plug in module Select one filter configuration for internal reference receiver Option 030 155 Mb s Option 032 622 Mb s Option 034 2488 Mb s Special Option H91 9953 Mb s Special Option H92 2488 amp 9953 Mb s HP 83485B optical channel electrical chan nel high speed plug in module Select one filter type for internal reference receiver Option 040 Fourth order filter response for 9953 Mb s Option 050 Fifth order filter response for 9953 Mb s HP 83486A optical channel electrical chan nel 155 622 1063 1250 Mb s plug in module Select configuration for the two internal switchable filters Option 040 155 and 622 Mb s filters Option 041 1063 and 1250 Mb s filters Special Option H44 1250 amp 2488 Mb s filters Special Option H48 1063 1250 amp 2488 Mb s filters Special Option H49 155 622 amp 2488 Mb s filters HP 83487A optical channel electrical channel 1063 1250 Mb s plug in module Option 041 1063 amp 1250 Mb s Special Option H48 1063 1250 amp 2488 Mb s filters Special Option H49 155 622 amp 2488 Mb s filters HP 83483A 83484A 83484B electrical plug in modules Option 001 Latest operating system firmware for the HP 83480A Option 002 Latest operating system firmware for the HP 54750A Option OBW Service manual Option OB1 Additional set of user documentation Option
10. pW lt 1 0 pW typical 2 85 GHz or filtered mode e HP 83486A 041 lt 2 5 pW lt 1 5 pW typical 2 85 GHz or filtered mode e HP 83487A 041 lt 2 5 pW lt 1 5 pW typical 2 85 GHz or filtered mode Scale factor full scale is eight divisions Minimum 2 pW div Maximum 100 yW div de accuracy Single marker referenced to average power monitor scale lt 50 yW div 0 4 of full scale 6 mW 3 reading channel offset 2 C A tempcay reading 0 4 hr A time reading dc difference two marker accuracy same channel referenced to avg power monitor scale 50 pW div 0 8 of full scale 3 of delta marker reading 2 C A tempea reading 0 4 hr A time a reading dc offset range 0 2 mW to 0 6 mW referenced to two divisions above bottom of screen Calibrated wavelengths HP 83481A amp HP83486A 1310 nm and 1550 nm HP 83487A 850 nm Wavelength range characteristic HP 83481A amp HP 83486A 1000 to 1600 nm HP 83487A 750 to 860 nm Average power monitor Specified operating range 30 dBm to 0 dBm 1 pW to 2 mW Factory calibrated accuracy 5 of reading 100 nW connector uncertainty 20 C to 30 C User calibrated accuracy 2 of reading 100 nW power meter uncertainty lt 5 C temp change Inputs Maximum specified peak input power 0 4 mW 4 dBm Maximum safe input 10 mW peak Connector type e HP 83481A 9 125 jm single mode user selectable conne
11. resolution transients and amplitude accuracy Automatic measurements can be made on frequency delta frequency magnitude and delta magnitude Reflection TDR and transmission TDT measurements The HP 83480A can be configured as a time domain reflectometer when using either the single ended HP 54753A TDR TDT module or the differential two channel HP 54754A TDR TDT module The HP 54755A firmware upgrade kit is required Time Domain Reflection TDR Measurements Normalization A reference plane is defined by calibrating the reflection channel with a short 0 ohm placed at the point where the device under test DUT will be connected The short calibration is followed with a 50 ohm calibra tion These calibrations remove all test fixture errors relating to secondary reflections Therefore characteristic impedance measure ments are more accurate when viewing the normalized TDR waveform Cursor Reads out the percent reflection impedance time and distance from the reference plane to the cursor Percent Reflection Automatic measurements provided to calcu late the maximum positive and negative percent reflections of the waveform shown onscreen Variable Bandwidth Limit Changing the rise time of the normalization filter requires a cali bration using a short and 50 ohm load be placed at the launch point When this is not possible or dif ferential TDR is used a variable bandwidth limit filter can be
12. 1 3 Channel 2 4 TDR TDT Setup Measure Trigger Trigger 50 Q 2V Max 3 5mm HP 54754A Differential TDR Plug in Module The HP 83480A can be configured as a time domain reflectometer when using either the single ended HP 54753A TDR TDT module or the differential two channel HP 54754A TDR TDT module The HP 54755A firmware upgrade kit is required 6 Where A Toa represents the temperature change in Celcius from the last user calibrtion HP 54753 754A TDR System Specifications Combined Oscilloscope and TDR Performance Normalized Characteristics Rise Time TDR step lt 45 ps typically 40 ps Adjustable allowable values based on time base setting Minimum 10 ps or 0 08 x Time div which ever is greater Maximum 5 x Time div Flatness lt 1 after 1 ns from edge lt 0 1 lt 5 3 to 1 ns from edge Levels Low 0 00V 2 mV 0 00V 2 mV High 200 mV 2 mV 200 mV 2 mV HP 54753 754A Plug in Specifications Combined Oscilloscope and TDR Performance Normalized Characteristics Channels Vertical 18 20 GHz Bandwidth Mode 12 4 GHz Bandwidth Mode Bandwidth 3 dB TDR Elec Channel dc to 18 GHz dc to 12 4 GHz Elec Only Channel dc to 20 GHz Transition Time 10 to 90 calculated from Tr 0 35 BW TDR Elec Channel 19 4 ps 28 2 ps Elec Only Channel 17 5 ps Max Noise RMS 1TmV 0 5 mV Scale Factor fullscale is 8 divisions Minimum 1 mV div 1 mV
13. L HEWLETT PACKARD HP 83480A Series Digital Communications Analyzer HP is committed to providing the latest measurement solu tions to give you the leading edge in evolving technologies Recent HP 83480A enhance ments include e HP 83490 Series of Electrical Multimode and Single mode Clock Recovery Modules e HP 83485A H92 2 48 9 95 Gb s Optical Reference Receiver e HP 83486A new filter options H44 1250 and 2488 Mb s H48 155 622 2488 Mb s H49 1060 1250 2488 Mb s e HP N1031A BenchLink Software e HP 83480A K16 K17 Rambus RF Switch Matrix e HP N1020A TDR Probe Kit e IConnect TDR Modeling Software see http www tdasystems com Color grade is enabled HP 83480A with the new HP 83492A Clock Recovery Module and HP 83487A Datacom Reference Receiver Time base Units AMEE bit period Scale Position 221 04797 bit Reference lett DCT Time base 22 2086 ns windowing Test OC 192 with the new HP 83485A H92 OC 48 OC 192 reference receiver Rambus is a trademark of Rambus Inc IConnect is a trademark of TDA Systems Contents HP 83480A 011 2 1s 3 Specifications 7 Optical Electrical Modules 9 Electrical Modules 13 TDR Modules 000000 14 Clock Recovery Modules 16 ACCE SSOTIES ececeeeeeeeeeees Ordering Information HP 83480A Digital Communications Analyzer The HP 83480A digital communi catio
14. a reading 0 4 hr A time ca reading 20 GHz mode 0 8 of full scale 3 of reading channel offset 2 C A tempea delta reading 0 4 hr A time a reading dc offset range 500 mV Inputs Dynamic range 400 mV relative to channel offset Maximum safe input voltage 16 dBm peak ac 2V dc characteristic Nominal impedance 50 ohm Reflections 5 for 30 ps rise time Connector 3 5 mm m HP 83484A dual 50 GHz electrical channel plug in module e Two electrical measurement channels e 50 GHz and 26 5 GHz selectable bandwidth e Trigger port Two electrical measurement channels 50 GHz and 26 5 GHz selectable bandwidth 2 5 GHz trigger port HP 83484A dual 50 GHz electrical channel plug in module HP 83484B single 50 GHz electrical channel plug in module e One electrical measurement channel e 50 GHz and 26 5 GHz selectable bandwidth e Trigger port The HP 83484A B plug ins provide accurate wide bandwidth measurement channels For optimum noise performance when measuring small signals the 26 5 GHz setting is used For highest accuracy and fidelity when measuring very high speed signals the 50 GHz bandwidth setting is used HP 83484A ELECTRICAL MODULE SETUP Channel f SETUP 5 f 5 Channel Trigger Trigger 50 Q 2V Max 3 5mm Electrical Channel 50 Q 2V Max 50 Q 2V Max 2 4mm 2 4mm HP 83484A Electrical Plug in Module Bandwidth 3dB dc to 50 GHz or dc
15. agram Clock Recovery Trigger Plug in Modules Tracking Module Operating Input Power Data Rates for Clock Acquisition Contributed Module Input Level for Clock Recovery Insertion Loss Recovery Range Jitter HP 83491A 50 Ohm 10 to 3 dBm DC 2500 MHz 7 dB 155 622 1060 1250 0 1 lt 0 0125 UI RMS Electrical 4500 MHz 10 dB 2120 2488 2500 Mb s HP 83492A 62 5 125 750 860 nm 10 to 3 dBm 5 0 dB max 155 622 1060 1250 0 1 lt 0 0125 UI RMS um 1000 1600 nm 13 to 3 dBm 2120 2488 2500 Mb s HP 83493A 9 125um 1000 1600 nm 20 to 3 dBm 1 5 dB max 155 622 1250 2488 0 1 lt 0 0125 UI RMS 2500 Mb s T The HP 83490A series of clock recovery modules are not GPIB controllable 16 Clock Recovery Module Specifications Testing Channel Inputs amp Outputs All needed adapters and jumpers included HP 83491A APC 3 5 mm 50 Ohm e HP 83492A Diamond HMS 10 HP universal connector with 62 5 125 multimode fiber e HP 83493A Diamond HMS 10 HP universal connector with 9 125 single mode fiber Operating Input Power Levels HP 83491A Trigger operation all rates 10 to 3 dBm 1E 10 BER 10 to 3 dBm8 e HP 83492A 750 860 nm Trigger operation all rates 10 to 3 dBm 1E 10 BER 10 to 3 dBm 1000 1600 nm Trigger operation all rates 13 to 3 dBm 1E 10 BER 13 to 3 dBm e HP 83493A Trigger operation all rates 20 to 3 dBm 1E 10 BER 17 to 3 dBm Output Jitter 0 0125 UI rms all rates Auxiliar
16. amp 20 9 125 um 1000 1600 nm 20 1or2 155 amp 622 10 dBm 2488 9953 HP 83485B 1 18 amp 40 9 125 um 1000 1600 nm 1 9953 8 dBm HP 82486A 1 12 amp 20 62 5 125 pm 1000 1600 nm 2 85 gt 3 0 2or3 155 622 19 dBm 1063 1250 2488 HP 83487A 1 12 amp 20 62 5 125 um 750 870 nm 2 85 gt 3 0 2o0r3 1063 1250 17 dBm 2488 HP 83481A 486A 487A High Sensitivity Optical Electrical plug in modules The HP 83480A series of amplified optical plug in modules consist of the e HP 83481A single mode reference receiver 1310 1550 nm e HP 83486A multi mode reference receiver 1310 1550 nm and e HP 83487A multi mode reference receiver 850 nm Features common to all three amplified modules include e Integrated calibrated optical channel with high sensitivity e Automatic switchable SDH SONET Fibre Channel and Gigabit Ethernet filters for compliance testing e 20 12 4 GHz bandwidth electrical channel e 2 5 GHz trigger port The HP 83481 486 487 modules provide the ideal measurement system for testing low powered SDH SONET Fibre Channel and Gigabit Ethernet signals as well as other high speed telecommunications signals The calibrated integrated optical receiver with over 2 85 GHz bandwidth allows for easy precise measurements of optical signals An average power meter is built in For compliance testing one or two different hardware filters can automatically be switched in to create a calibrated reference rec
17. ast user calibration and ATime represents the time since the last ver tical calibration The uncertainty due to time typically stabilizes after 24 hours This term goes to 0 upon execution of a vertical calibration 11 HP 83485A module e Integrated calibrated optical channel with 20 GHz bandwidth e 20 GHz bandwidth electrical channel e 2 5 GHz trigger channel Optical channel specifications Bandwidth 3 dB dc to 20 GHz or dc to 12 4 GHz user selectable Filtered bandwidth All available filter options conform to appropriate ITU Gigabit Ethernet and Fibre Channel reference receiver specifications Transition time 10 to 90 calculated from Tr 0 48 BW optical 25 ps 20 GHz mode 40 ps 12 4 GHz mode Maximum RMS noise 12 yW 8 pW typical 12 4 GHz or filtered mode 25 pW 15 pW typical 20 GHz mode Scale factor full scale is eight divisions Minimum 20 pW div Maximum 500 pW div dc accuracy Single voltage marker 12 4 GHz mode 0 4 of full scale or marker reading whichever is greater 2 mV 1 5 of reading channel offset 2 C A Tea reading 0 4 hr A time reading 20 GHz mode 0 4 of full scale or marker reading whichever is greater 2 mV 3 0 of reading channel offset 2 C A Tea reading 0 4 hr A time reading gt dc difference Single marker referenced to average power monitor 12 4 GHz or filtered mode 2 of delta reading 2 C A tempea
18. ations Please refer to the specifications for the individual module used The following refers to parameters that are plug in independent Scale factors Adjusts in a 1 2 5 10 sequence from the front panel knob or the INC DEC arrow keys also adjustable over the available range from the numeric keypad Attenuation factors Factors may be entered to scale the analyzer for external attenuators or transducers such as O E converters connected to either electrical or optical channel inputs Attenuation range is from 0 0001 1 to 1 000 000 1 entered linearly or in dB Transducer conversion units may be entered in volts watts amps or user defined units Digitizer converter 12 bit successive approximation A D converter Resolution Up to 15 bits with averaging Variable IF gain sets minimum resolution to better than or equal to 9 bits on all ranges Noise Averaging reduces noise by 1 Vn where n is the num ber of averages until a system limitation determined by the specifics of the plug in module is reached For multi level signals such as eye diagrams averaging can be used for noise reduction when using HP 83480A option 001 HP Eyeline Mode software Channel to channel isolation gt 60 dB Bandwidth control Some plug in modules have high and low bandwidth settings user selectable Refer to plug in specifications for actual bandwidth available Time base horizontal Delay between channels The difference in delay betw
19. ctor option e HP 83486A amp 83487A 62 5 125 ym multimode user selectable connector option Input return loss e HP 83481A 33 dB HMS 10 HP connector e HP 83486A amp 83487A 20 dB HMS 10 HP connector fully filled multimode fiber e HP 83486A 30 dB HMS 10 HP connector single mode fiber Electrical channel 12 20 GHz identical to HP 83483A page 13 HP 83482A 485A 485B High Bandwidth Optical Electrical plug in modules The HP 83485A provides 20 GHz of unfiltered band width and one or two switchable filters options include 155 622 2488 and 9953 Mb s It has a companion 20 GHz electrical channel with the same specifications as the HP 83483A module The new HP 83485A special option H92 has both OC 48 STM4 and OC 192 STM16 switchable SONET SDH filters The new HP 83485A special option H91 has just the OC 192 STM16 switchable filter The HP 83482A provides the widest bandwidth for mea surements of very high speed optical waveforms The integrated calibrated optical receiver allows for easy precise analysis of optical signals The flat frequency response provides low distortion high fidelity measure ments An average power meter is built in The com panion electrical channel has over 40 GHz bandwidth The HP 83485B is designed with a switchable filter for 10 Gb s conformance testing The companion electrical channel has 40 GHz of bandwidth 2 Where A Tea represents the temperature change in Celsius from the l
20. dependent TDR step generators De skew adjustment is available for both differential and common mode measurements Differential TDR Timing Deskew For accurate differential TDR measurements it is essential that the TDR steps are coincident at the reference plane and the reflected steps are coincident at the sam plers Ideally this is accomplished by using electrically matched launch cables When this is not possible the TDR channels must be deskewed Time Domain Transmission TDT Measurements Source Measurements are made using the channel step source or a user supplied external source TDT Calibration A calibration with a straight through path or through the standard device determines reference amplitude levels and reference time and dis tances of the signal path These reference levels are used for gain and propagation delay measure ments TDT Cursor Reads out time referenced to the calibration edge and gain referenced to the trans mission calibration results TDT Propagation Delay and Gain Automatically calculates the differ ence in time and distance between the calibration signal path and the test signal path Also calculates the ratio of the test signal ampli tude to the calibration signal amplitude TDT Normalization Filter Applies a firmware digital filter to the measured data The rise time of the filter may be varied to sim ulate the edge speeds which would be seen by the device under act
21. div Maximum 100 mV div 100 mV div de Accuracy Single Voltage Marker 0 4 of full scale or marker reading whichever is greater 2 mV 1 5 of reading channel offset 2 C A Teal reading 0 4 of full scale or marker reading whichever is greater 2 mV 1 5 of reading channel offset 2 C A T yal reading dc Difference Voltage Accuracy using 2 voltage markers on the same channel 0 8 of full scale or delta marker reading whichever is greater 1 2 of delta marker reading 0 8 of full scale or delta marker reading whichever is greater 0 6 of delta marker reading Programmable dc Offset Channel offset 500 mV Channel offset 500 mV HP 54753 754A Inputs Two TDR Step Generators 54753 One 54754 Two Dynamic Range 400 mV relative to channel offset Maximum Safe Input Voltage 2 Vdc peak ac 16 dBm Nominal Impedance 50 ohm Percent Reflection 5 for 30 ps rise time Connectors 3 5 mm m 15 HP 83491 92 93A Clock Recovery Trigger Modules e Integrated single mode multimode and electrical modules e Standard datacom and telecom rates e Exceptional jitter performance e Recovered clock and regenerated data electrical outputs The HP 54750A 83480A DCA family now offers single connection measurements no external trigger is required With the addition of the HP 83491A 83492A and 83493A clock recovery modules reliable parametric testing becomes easy ev
22. een channels can be nulled out with 1 ps resolution to compensate for differences in input cables or probe length Up to 100 ps of skew adjustment is available Reference location The reference point defines displayed time relative to the trigger and is offset from the trigger by the delay time The reference point can be located at either the left edge or center of the display screen The ref erence point is also the point that the time base sen sitivity expands or contracts as the time base scale is changed Triggered mode In this mode the analyzer triggers synchronously to the trigger input signal Freerun In this mode the analyzer generates its own trigger which is not correlated to any vertical channel inputs Typical timing accuracy The time base uses a series of 4 ns blocks Time base linearity and small discontinuities across these blocks contribute to the 8 ps accuracy specification HP 83480A Modules The HP 83480A supports a large and growing family of optical electrical clock recovery and TDR TDT plug in modules The HP 83480A mainframe can hold two plug ins for a total of four measurement channels HP 8348X OPTICAL ELECTRICAL MODULE SETUP Channel SETUP Channel Trigger 3 5 mm Electrical Channel Optical Channel HP 8348X Optical Electrical Plug in Modules Optical Receiver Plug in Modules HP 8348XA Optical Plug in Modules The HP 8348X optical plug in modules all come w
23. eiver The switchable filter minimizes setup time while maximizing measurement repeatability In addition the HP 83486A and 83487A can have a third in line filter which allows it to perform compliance testing at three different rates up to 2 488 Gb s If this spe cial option is chosen the unfiltered bandwidth will be limited to 75 of the fastest data rate chosen 4 X Fibre OC 48 _ Sampling Fiter H4 Channel o p Ampification s abit Ly Ethernet Filter Monitor HP 83486A three filter special options 10 The companion electrical measurement channel with up to 20 GHz bandwidth is identical in performance to the HP 83483A plug in module channels It can be used for measurements on tributary signals optical receiver evaluation or for general purpose oscilloscope measurements HP s wide variety of external optical receivers is compatible with the electrical channel Simply enter in the responsivity factors to produce an effective optical channel Optical channel specifications Bandwidth 3 dB dc to 2 85 GHz 3 GHz typical Filtered bandwidth All available filter options conform to appropriate ITU Gigabit Ethernet and Fibre Channel reference receiver specifications Transition time 10 to 90 calculated from Tr 0 48 BW optical 160 ps unfiltered mode Maximum RMS noise e HP 83481A 040 lt 2 5 pW lt 1 5 pW typical 2 85 GHz or filtered mode e HP 83486A 040 lt 1 5
24. en when you don t have access to a clock signal The HP 83491 2 3 series of clock recovery modules provide both data and recov ered clock triggering capability see on the display is highly dependent upon your trigger signal The 83491 2 3 clock recovery modules provide three trigger sources both a narrow and wider bandwidth recovered clock trigger as well as a data trigger All three modules have exceptional jitter performance to ensure an accurate display of the jitter on the incoming data Standard telecom and datacom rates are available at the push of a button Triggering on data is available for non standard rates In addition the HP 83491A electrical clock recovery module is compatible with HP probes making PC board trouble fast and easy HP 8349XA Clock Recovery Module Data Out Clock Out Data Clock to The HP 8349X series of plug in clock recovery modules Input Data ana e cover the three most popular transmission media in Recovery connection use today electrical lines multimode fiber and single mode fiber A built in coupler splitter reduces external hardware required for triggering No more need for awkward cables and probes just to get a trigger simply HP 8348XA plug in your test signal select your data rate and Channel Plug In Module make your measurements Input Time domain measurements are only as accurate as the clock source that you are triggering on What you HP 83491 2 3A Block Di
25. gnal performance or measurements where isolation from the mainframe is required to reduce vibration of the test device HP 11898A Module Extender HP 11898A specifications and characteristics There are no specifications for the HP 11898A extender module Performance is characterized in terms of how it will affect operation of the mainframe and plug in Operating temperature range 15 C to 35 C Warm up time 2 Hours Time Base Delay Minimum delay will be increased from a 22ns minimum to typically 40 ns when trigger ing at the remote module 30 ns when triggering at the mainframe Trigger Sensitivity Trigger sensitivity will be reduced by 4 dB at 2 5 GHz HP N1020A TDR Probe e Stable and accurate measurements e Reliable and repeatable positioning e Wide bandwidth characteristics e Faster setup than X Y Z positioners e Minimizes damage to components 18 N1020A TDR Probe The N1020A TDR Probe is designed for making Time Domain Reflectometry measurements on printed cir cuit boards The tip of the TDR Probe incorporates a novel variable pitch spring loaded ground pin The spring loaded feature enables compensation of different height ground and signal contacts This will easily accommodate manufacturing tolerances of standard printed circuit board probing pads An Archimedes spiral pattern on the probe tip allows a variable ground pitch between 0 060 and 0 200 in 0 010 increments The ground pin can be easily rem
26. iltered characteristic Maximum RMS noise 30 pW 15 pW typical Scale factor full scale is eight divisions Minimum 20 pW div Maximum 500 pW div de accuracy Optical channel referenced to average power meter 50 pW 4 of reading channel offset 2 C ATea reading dc difference two marker accuracy same channel referenced to avg power monitor 4 of delta reading 2 C AT oa reading 3 The HP 83482A has a flat frequency response from dc to 30 GHz with a smooth rolloff at the high end frequencies 4 The HP 83485B s 30 GHz of unfiltered bandwidth will give accurate unfiltered rise time and jitter measurements However since the unfiltered frequency response is not flat it is not recom mended that other waveform measurements be performed in the unfiltered mode Where AT a represents the temperature change in Celsius from the last user calibration 12 dc offset range 1 mW to 3 mW referenced to two divisions above bottom of screen Calibrated wavelengths 1310 nm and 1550 nm Wavelength range characteristic 1000 to 1600 nm Average power monitor Specified operating range 27 dBm to 3 dBm 2 pW to 2 mW Factory calibrated accuracy 20 C to 30 C 5 of reading 100 nW connector uncertainty User calibrated accuracy lt 5 C temp change 2 of reading 100 nW power meter accuracy Inputs Maximum specified input power characteristic 2mW Maximum safe input characte
27. itch matrix HP 83480A K17 RIMM fixture HP 10086A ECL terminator HP 83430A lightwave digital source HP 11898A Plug in module remote extender HP N1031A BenchLink Software
28. ith one optical channel one electrical channel and a trigger input port The specifications for the optical channels are custom manufactured for specific data com and telecom applications and the complementary electrical channel is built into each module The detailed specifications for the electrical channels are included in the following section on electrical modules HP 8348X optical modules feature built in switchable filters and an accurate average power meter Modules can be built with one or two filters and an unfiltered path for maximum bandwidth The diagram below is a block diagram of a typical optical receiver for the HP 83480A The table on the following page shows the overall specifications for all of the HP 83480A optical receivers Detailed descrip tions and specifications follow for each individual module Specific ordering information is located at the back of the product overview HP 8348X Optical Receiver Optical Sampling Receiver Amplification y Pre l HP 8348X Two filter Optical Channel Block Diagram Average Power Monitor Plug in Module Electrical Channels Optical Channels Characteristic Unfiltered Sensitivity Bandwidth smallest avg Bandwidth GHz Filter power for Number GHz Fiber Input Wavelength typical Filters Rates Mb s mask test HP 83481A 1 12 amp 20 9 125 um 1000 1600 nm 2 85 gt 3 0 2 155 amp 622 17 dBm HP 83482A 1 18 amp 40 9 125 um 30 HP 83485A 1 12
29. measure optical electrical plug in modules ments A foot switch or TTL signal allows connection Option 001 Latest operating system firmware for of the device under test after static charge is removed the HP 83480A Risetime is lt 40 ps In North America contact Option 002 Latest operating system firmware for Picosecond ATE Inc 503 641 3295 the HP 54750A HP 83480A Environmental Conditions Select one connector type for the optical channel Option 012 FC PC Temperature Option 013 DIN Operating 10 C to 40 C Option 014 ST Non operating 40 C to 70 C Option 015 Biconic Humidity Option 017 SC Operating Up to 80 relative humidity non condensing at 25 C Non operating Up to 80 relative humidity at 65 C 19 Plug in Modules Summary Plug in Module Electrical Channels Optical Channels Characteristic Sensitivity Unfiltered smallest Bandwidth Bandwidth Filter power for Number GHz Fiber Input Wavelength GHz typical Filters Rates Mb s mask test HP 83481A 1 12 amp 20 9 125 um 1000 1600 nm 2 85 gt 3 0 2 155 amp 622 17 dBm HP 83482A 1 18 amp 40 9 125 um 1000 1600 30 HP 83483A 2 12 amp 20 HP 83484A 2 26 5 50 HP 83484B 1 26 5 50 HP 83485A 1 12 20 9 125 pm 1000 1600 20 lor2 155 622 10 dBm 1063 1250 2488 9953 HP 83485B 1 18 40 9 125 um 1000 1600 1 9953 8 dBm HP 83486A 1 12 20 62 5 125 um 1000 1600nm 2 85 gt 3 0 2or3 155 622 19 dBm 1063 1250 2488 HP 83487A 1
30. ns analyzer is a powerful instrument designed specifically to give you the highest accuracy measurement speed and ease of use for characterizing telecommun ications and data communications waveforms For research and design or production test the HP 83480A and its broad family of plug in modules provide the right answers fast e Complete characterization of waveforms with automated measurement and mask testing e Accurate and repeatable extinction ratio measurements e Integrated optical channels with highest waveform fidelity and measurement accuracy e Fast measurement throughput resulting in lowest cost per test e Modular platform with an exten sive family of plug in modules Waveform analysis Eye diagram and pulse waveforms are quickly and conveniently analyzed with a full range of auto mated statistical measurements Standard measurements include e Extinction Ratio e Mean rise and fall time e Jitter p p RMS e Crossing e Eye width e Eye height e Overshoot e Duty cycle distortion 1 HP 83480A jitter measurement is used to characterize jitter of a data waveform Other jitter measurements such as jitter transfer and jitter tolerance are measured with instruments such as the HP 71501B C or the HP 75000 Series 90 95 mp E 5 E f Versatile HP 83480A with 2 5 Gb s and 10 Gb s integrated optical plug in modules Extinction ratio measurements are automated with a histogram based
31. oved and replaced by the user with the supplied extraction tool The versatility of this variable ground allows fast set up for different applications No switching between probes fixtures is necessary HP 83480A K16 K17 Rambus RF Switch Matrix and RIMM Fixture High volume Rambus RIMM testing can be performed with a new product from Hewlett Packard The HP 83480A K16 Switch Matrix and the HP 83480A K17 RIMM Fixture enables a manufacturing test configu ration for measuring characteristic impedance Zo of bare PCBs The HP 83480A K16 RF Switch Matrix is a 1x16 multiplexer that allows 16 different PCB traces to be measured with only 1 TDR channel With the HP 83480A Differential TDR Module channel two can have an additional 1x16 Switch Matrix connected to it thus allowing 32 channels of testing with a single plug in module The HP 54750 83480A accepts two plug in modules creating a 64 channel tester with only one Oscilloscope mainframe Altitude Operating Up to 4 600 meters 15 000 ft Non operating Up to 15 300 meters 50 000 ft Power Requirements Voltage 90 to 132 or 198 to 264 Vac Power 1200 VA 650 W Weights and dimensions approximate HP 83480A Net Weight 24 5 kg 54 lb Shipping Weight 31 8 kg 70 lb HP 83483A 83484A B Net Weight 1 1 kg 2 4 lb Shipping Weight 2 0 kg 4 4 lb HP 83481A 83485A B 83486A 83487A Net Weight 1 1 kg 2 4 lb Shipping Weight 2 0 kg 4
32. r printer Limit test can be set to run contin uously for a user selected number of waveforms or a defined number of failures Histograms Time and voltage power histograms may be taken with a user specified number of samples or waveforms Time or amplitude histograms are taken within a user specified ver tical and horizontal window Automatic histogram measurements include p p median u 1 sigma mean std dev u 2 sigma hits peak u 3 sigma Save recall transfer Up to 10 complete instrument setups may be stored in the internal non volatile memory Additional setups can be stored and retrieved with the internal MS DOS compati ble disk drive Four waveforms may be saved in four non volatile memories Wave forms may also be saved to a disk Waveforms including color graded waveforms may be saved to a disk and retrieved by the instrument for future analysis similar to if the wave form were being measured directly For reports and documentation waveforms scaling information and measurement results may be transferred directly to GPIB or Centronics graphic printers Waveforms may also be saved on the internal disk in PCX TIFF COLOR TIFF or GIF format and imported directly by a word processor Mask test is enabled Avgs 32 Mask test REMOTE STN16 0C43 total wfms 16 mask margin failed wims 1 total hits total samples 21 600 k margin hi
33. rement keys or the knob will set averaging to 1 2 4 16 64 256 1024 and 4096 On each acquisition 1 n times the new data is added to n 1 n of the previous value at each time coordinate n being the total number of trace acquisitions Display colors May choose a default color selection or select your own colors from the front panel or via HP IB A wide variety of colors are available for display background channels functions background text highlighted text advisories markers overlapping memories and memories Programmability Instrument settings and operating modes including automatic measurements may be remotely program med via HP IB IEEE 488 2 Data transfer rate 550 Kbytes s typical Measurement times 25 automatic measurements per second typical Several automatic measurements such as eye diagram measurements are histogram based and require additional time for data acquisition Data record length 4K points maximum per channel FFT Up to three fast Fourier transforms can be run simultan eously The three built in filters Hanning rectangular flattop allow optimization of frequency resolution transients and amplitude accuracy Frequency span Sample rate 2 record length 2x time base range Frequency resolution Time base range record length HP 83480A System Characteristics Channels vertical The plug in module used with the mainframe gener ally dictates vertical parameters and specific
34. ristic 10 mW peak Connector type 9 125 um single mode user selectable connector option Input return loss 30 dB HMS 10 HP connector Electrical channel specifications Bandwidth 3 dB dc to 40 GHz or de to 18 GHz user selectable Transition time 10 to 90 calculated from Tr 0 35 bandwidth 18 GHz mode lt 0 5 mV 0 25 mV typical 40 GHz mode lt 1 0 mV 0 5 mV typical Maximum RMS noise 0 5 mV 0 25 mV typical 18 GHz mode 1 0 mV 0 5 mV typical 40 GHz mode Scale factor full scale is eight divisions Minimum 1 mV div Maximum 100 mV div dc accuracy Single voltage marker 18 GHz mode 0 4 of full scale or marker reading whichever is greater 2 mV 1 5 of reading channel offset 2 C A Tcal reading 40 GHz mode 0 4 of full scale or marker reading whichever is greater 2 mV 1 5 of reading channel offset 2 C A Tea reading dc difference 18 GHz 0 8 of full scale 1 5 reading channel 1 C A Teap delta reading 40 GHz 0 8 of full scale 3 reading channel offset 1 C A Tea delta reading dc offset range 500 mV Inputs Dynamic range 400 mV relative to channel offset Maximum safe input 16 dBm peak ac 2V dc voltage characteristic Nominal impedance 50 ohm Reflections lt 5 for 20 ps risetime Connector 2 4 mm m Electrical Modules HP 83480 Electrical Plug in Modules Plug in Module Electrical Channel
35. s Bandwidth Number GHz HP 83483A 2 12 amp 20 HP 83484A 2 26 5 50 HP 83484B 1 26 5 50 HP 54753A 1 TDR Elec 12 18 1 Elec 12 20 HP 54754A 2 TDR Elec 12 18 HP 83483A dual 20 GHz electrical channel plug in module e Two electrical measurement channels e 20 GHz and 12 4 GHz selectable bandwidth e Trigger port The HP 83483A provides two accurate measurement channels with user selectable bandwidths For opti mum noise performance when measuring small signals the 12 4 GHz setting is used For highest accuracy and fidelity when measuring high speed signals the 20 GHz bandwidth setting is used Bandwidth 3 dB dc to 20 GHz or dc to 12 4 GHz user selectable Transition time 10 to 90 calculated from Tr 0 35 bandwidth typical 17 5 ps 20 GHz mode 28 2 ps 12 4 GHz mode Maximum noise RMS 12 4 GHz mode lt 0 5 mV 0 25 mV typical 20 GHz mode lt 1 mV 0 5 mV typical Scale factor full scale is eight divisions Minimum 1 mV div Maximum 100 mV div 13 dc accuracy Single voltage marker 12 4 GHz mode 0 4 of full scale 2 mV 1 5 of reading channel offset 2 C A Tea reading 0 4 hr A time reading 20 GHz mode 0 4 of full scale 2 mV 3 0 of reading channel offset 2 C A Toa reading 0 4 hr A time reading dc difference two marker accuracy on the same channel 12 4 GHz mode 0 8 of full scale 1 5 of reading channel offset 2 C A temp delt
36. tion The data transfer rate is typically 550 Kbytes s and 25 automatic measurements per second Setup aids Autoscale Pressing the auto scale key automatically adjusts the vertical scale of all channels the horizontal scale factors and the trigger level for a display appropriate for the applied signals Channel autoscale This is useful for a quick vertical scaling of an individual channel without chang ing other user selected settings such as timebase Vertical software calibration Changes in environmental condi tions can be accommodated by performing a software calibration on the plug in modules The cali bration resets the plug in for the plug in currently in the mainframe and mainframe operating temper ature Software vertical calibration is recommended prior to taking measurements requiring the best possible accuracy Time base configurations Time base can be configured in units of time or according to data rate thus making instrument setup straightforward and easy For ex ample if viewing an STM 16 OC 48 signal transmitting at 2 488 Gb s the data rate is selected and then the desired number of bits to be displayed Waveform position can also be specified as a bit position as opposed to an absolute time value relative to the trigger event FFT Up to three fast Fourier trans forms can be run simultaneously The three built in filters Hanning rectangular and flattop allow op timization of frequency
37. to 26 5 GHz user selectable Transition time 10 to 90 calculated from Tr 0 35 bandwidth 26 5 GHz mode 13 2 ps 50 GHz mode 7 0 ps Maximum noise RMS 26 5 GHz mode 0 75 mV 50 GHz mode 1 5 mV Scale factor full scale is eight divisions Minimum 1 mV div Maximum 100 mV div dc accuracy Single voltage marker 26 5 GHz mode 0 4 of full scale or marker reading whichever is greater 2 mV 1 5 of reading channel offset 2 C A Tea reading 50 GHz mode 0 4 of full scale or marker reading whichever is greater 2 mV 1 5 of reading channel offset 2 C A Tea reading dc difference two marker accuracy on the same channel 26 5 GHz mode 0 8 of full scale 3 of delta marker reading 50 GHz mode 0 8 of full scale 5 of delta marker reading De offset range 500 mV 14 Inputs Dynamic range 400 mV relative to offset Maximum safe input voltage 16 dBm peak ac 2V dc characteristic Nominal impedance 50 ohm Reflections 5 for 30 ps risetime Connector 2 4 mm m HP 54753 754A TDR Plug in Modules HP 54753A e One 12 4 18 GHz TDR Electrical and one 12 4 20 GHz Electrical Channel e One TDR Step Generator e Normalization e Excess L C measurements HP 54754A e Two 12 4 18 GHz TDR Electrical Channels e Two TDR Step Generators e Differential Measurements e Normalization e Excess L C measurements HP 54754A DIFFERENTIAL TDR MODULE SETUP
38. ts failed samples 1 mask hits Mask test using HP Eyeline mode HP eyeline mode Option 001 HP eyeline mode can be used with an HP 71603 4B or HP 71612A BERT Ypattern generator to display continuous traces instead of a conventional dot display Eyeline mode can be used to show pattern dependent effects in transmitters or show the bit sequence leading to a mask violation Eyeline mode also allows the use of averaging with an eye diagram This can be used to extract a clean eye diagram from noisy low power signals without distorting the waveform Conventional oscilloscope functions Waveform math functions A variety of functions can also be performed on signals magnify invert add subtract multiply divide min max integrate versus differentiate 31 1053 Markers Dual voltage power or time markers can be used for a variety of time and voltage power measurements Markers can be assigned to channel data measure ments functions FFTs histograms color graded displays and memories Programmability Instrument settings and operating modes including automatic mea surement results can be remote ly programmed via GPIB IEEE 488 2 GPIB programming com plies with the recommendations of the IEEE 488 2 standards The HP 83480A can be programmed to take data only at specified time points or to return only measure ment results such as risetime fall time average optical power to speed up the acquisi
39. ual operation See TDR output specifications for allowable rise time values Specifications Specifications describe the instrument s warranted performance over the 15 to 35 C range unless otherwise noted Typical values and supplementary characteristics describe expected but non warranted performance Vertical accuracy specifications assume less than 5 C temperature variation since latest user calibration HP 83480A mainframe Time base horizontal Scale factor Full scale is 10 divisions Minimum 10 ps division Maximum 1 s division Delay Time offset relative to trigger Minimum 22 ns Maximum 1000 screen diameters or 10 seconds whichever is smaller Time interval accuracy 8 ps 0 1 of reading Dual marker measurement Time interval resolution screen diameter record length or 62 5 fs which ever is less Trigger Pulse width 200 ps 200 mV Trigger Bandwidth modes Limited Mode dc to 100 MHz Normal Mode dc to 2 5 GHz High Speed Mode Option 100 2 0 GHz to 12 GHz 1 GHz to 15 GHz typ Trigger Sensitivity min Normal Mode 40 mVpp at 100 MHz increasing linearly to 200 MVP at 2 5 GHz High Speed Mode Option 100 200 mVpp from 2 0 GHz to 12 GHz sine wave input Trigger Level Range 1 V Maximum Trigger Signal Normal Mode lt 2 V dc ac peak 16 dBm High Speed Mode lt 2 V dc ac peak 16 dBm Trigger Jitter max Normal Mode lt 2 5 ps rms 5E 5 delay at 2 5 GHz with
40. used Cocated in the waveform math menu Percent Reflection Measurements Used to quantify reactive peaks and valleys of the TDR display Imped ance measurements are valid only for resistive horizontal flat line TDR displays Percent reflection and impedance measurements are ratios of voltage measurements whose accuracies are specified Resolution The TDR s ability to resolve the distance between two discontinu ities is limited to 1 2 the system rise time Without normalization this is approximately 1 2 x 45 ps or 7 mm in air For the distance resolution in your media divide 7 mm by the dielectric constant of your media With normalization and 40 GHz probes the system rise time can be 10 ps yielding 1 5 mm of resolution in air The maximum length the TDR can measure is subject to media loss For a lossless vacuum and using a 50 Hz TDR repetition rate the system can measure 1500 km Excess L C Once a calibration plane is estab lished the excess L C feature will compute the series L or shunt C equivalent to the area between cur sors This enables impedance com pensation of the device under test Scaling The Vertical scaling allows scaling in either percent reflection or ohms Cursors will also read in voltage or ohms A reference plane cali bration must be performed to utilize these scales Differential TDR Both differential and common stimulae are possible by launching rising edges from two in
41. y Recovered Clock and Regenerated Data Outputs Type N with SMA adapters Internal Splitter e HP 83491A 50 50 electrical e HP 83492A 50 50 multimode e HP 83493A 10 90 single mode Through Path Insertion Loss e HP 83491A DC 2500 MHz 7 dB 4500 MHz 10 dB e HP 83492A 5 dB maximum e HP 83493A 1 5 dB maximum Clock Recovery Phase Locked Loop Bandwidth characteristics Internal Path Triggering 50 to 70 kHz Recovered Clock External Output 4 to 5 MHz Return Loss HP 83491A Electrical Return Loss DC 1250 MHz 20 dB 1250 2500 MHz 15 dB e HP 83492A Optical Return Loss 20 dB e HP 83493A Optical Return Loss 28 dB Rate Selection Manual only NOT GPIB CONTROLLABLE 8 Better than 10 19 BER when tested with PRBS 223 1 pattern 23 9553 ns 241 1 ps div current 9 ps 23 0681 ns Same 622 Mb s OC 12 STM 4 signal triggered on a data signal left and the more accurate recovered clock signal right HP 83480A Accessories HP 11898A Module Extender The HP 11898A module extender can be used with plug in modules compatible with the HP 83480A and 54750A mainframes The extender allows the plug in to be placed up to 1 5 meters away from the main frame This allows users to make measurements on devices where the test device cannot be physically located close to the instrument mainframe Examples include testing of very high frequency electrical cir cuits where lengths of electrical cabling can degrade si
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