P6243 User Manual
Contents
1. 7 Figure 2 Waveform Distortion from Ground Lead Length 10 Figure 3 Ground Lead Equivalent Circuit 11 Figure 4 Low inductance Grounding 12 Figure 5 Using a SureFoot Adapter for Grounding 13 Figure 6 Using a Probe Tip as a Test Point 14 Figure 7 Typical Frequency Response 17 Figure 8 Typical Linearity Error vs VIN 18 Figure 9 Typical Input Impedance vs Frequency 19 Figure 10 Typical Non Destructive Peak Voltage Derating vs Erequ eficy ee ea 20 P6243 Instructions A AAA General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it Only qualified personnel should perform service procedures Injury Precautions Avoid Electric Overload To avoid electric shock or fire hazard do not apply a voltage to a terminal that is outside the range specified for that terminal Do Not Operate Without Covers To avoid electric shock or fire hazard do not operate this product with covers or panels removed Do Not Operate in Wet Damp Conditions To avoid electric shock do not operate this product in wet or damp conditions Do Not Operate in an Explosive Atmosphere To avoid injury or fire hazard do not operate this product in an explosive atmosphere Product Damage Precautions Use Proper Power2. Source Do not operate this product from a power source that applies more than the voltage specified Do Not Operate With Suspected Failures If you suspect there 15 damage to this product have it inspected by qualified service personnel Do Not Immerse in Liquids Clean the probe using only a damp cloth The cloth must be dampened with either isopropyl alcohol or a mild detergent and water solution Do not use any other chemicals or abrasives to clean the probe P6243 Instructions iii General Safety Summary Safety Terms and Symbols Terms in This Manual These terms may appear in this manual A WARNING Warning statements identify conditions or practices that could result in injury or loss of life N CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the Product These symbols may appear on the product A A a DANGER Protective Ground ATTENTION Double High Voltage Earth Terminal Refer to Manual Insulated iv P6243 Instructions A AA Getting Started The Tektronix P6243 is a 1 GHz 10X active FET probe with less than 1 pF inp
3. Tektronix for warranty work may be new or reconditioned to like new performance All replaced parts modules and products become the property of Tektronix In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix with shipping charges prepaid Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or connection to incompatible equipment c to repair any damage or malfunction caused by the use of non Tektronix supplies or d to service a product that has been modified or integrated with other products when the effect of such modification or integration in
4. connections on the front panel of the oscilloscope See Figure 1 The ground connection is not necessary for a functional check NOTE You can compensate the probe only if your oscilloscope supports the TEKPROBE interface and has a calibration routine for that purpose For instructions refer to the user manual of your oscilloscope P6243 Instructions Getting Started PROBE COMPENSATION SIGNAL GND oye TkHz TTE AT ims Figure 1 Probe Compensation Connections 1 Connect the probe to the oscilloscope 2 Set the oscilloscope to display the probe channel 3 If you intend to compensate the probe connect a ground lead and an SMT KlipChip to the GND terminal 4 Using a standard tip hold the probe to the SIGNAL terminal 5 Press AUTOSET or adjust the oscilloscope to display the waveform specified for the compensation output 6 If you intend to compensate the probe refer to the user manual for your oscilloscope and perform the calibration routine now 7 Disconnect the probe tip from the SIGNAL terminal and connect it to the GND terminal The oscilloscope display should be at the ground reference P6243 Instructions 7 Getting Started 8 P6243 Instructions AY AAA Operating Basics Please follow these operating guidelines to get optimum performance from your P6243 Active Probe Maximum Non destructive Input Voltage The P6243 Active Probe is electrically protected against static voltag
5. 62 2847 00 for Class 5 equipment Humidity Packaged Product Vibration and Shock Altitude P6243 Instructions The environmental exposure is the procedure stated in Tektronix Design Standard 062 2847 00 for Class 5 equipment The packaged product qualifies under the Distribution Cycle 1 Assurance Level Il for packaged products 0 20 Ibs Test 2 for Warehouse and Vehicle Stacking Compression is omitted Tektronix standard 062 2858 00 Rev B Class 5 Operating 4 572 m 15 000 ft Non Operating 15 240 m 50 000 ft 21 Specifications 22 P6243 Instructions
6. P6243 1 GHz 10X Active Probe Instructions Tektronix 070 9408 04 P6243 1 GHz 10X Active Probe Instructions www tektronix com Tektronix Y 070 9408 04 Copyright Tektronix All rights reserved Licensed software products owned by Tektronix or its subsidiaries or suppliers and are protected by national copyright laws and international treaty provisions Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved TEKTRONIX TEK TEKPROBE and SureFoot are registered trademarks of Tektronix Inc KlipChip is a trademark of Tektronix Inc Contacting Tektronix Tektronix Inc 14200 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA For product information sales service and technical support m In North America call 1 800 833 9200 m Worldwide visit www tektronix com to find contacts in your area Warranty Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one 1 year from the date of shipment If any such product proves defective during this warranty period Tektronix at its option either will repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product Parts modules and replacement products used by
7. TION Do not apply voltages beyond the non destructive input may result Refer to Figure 10 Table 1 Warranted Electrical Specifications Analog Bandwidth probe only gt 1 0 GHz at 20 C to 30 C 68 F to 86 F DC Attenuation Accuracy 10 1 2 probe only at 20 C to 30 C 68 F to 86 F Output Zero 10 mV or less at output of probe at 20 C to 30 C ped to 86 F 100 mV or less displayed on screen with TEKPROBE interface Rise Time probe only lt 350 ps at 20 C to 30 C 68 F to 86 F P6243 Instructions 15 Specifications Table 2 Typical Electrical Characteristics Frequency Response probe only See Figure 7 Linear Input Dynamic Range 8Vto 8V Equivalent to 0 8 V to 0 8 V at the output of the probe Linearity 4 or less of dynamic range Linearity Error vs Vin See Figure 8 Input Resistance 1 MQ at DC See Figure 9 Input Capacitance lt 1 0 pF Non Destructive Input Voltage Range 15V to 15 V DC peak AC See Figure 10 DC Offset Drift 100 uV C or less at output of probe 1 mV C or less displayed on screen with TEKPROBE interface Delay Time 5 3 ns 0 2 ns 16 P6243 Instructions Specifications 2 dB 1 dB 0 dB 1 dB 2 dB 8 dB 4 dB 5 dB 6 dB 7 dB 8 dB 1 MHz 10 MHz 100 MHz 1 GHz Figure 7 T
8. angle adapter allows the P6243 to lie flat against a circuit board This enables probing in vertical circuits such as computer or commu nications backplanes or in tight areas such as between circuit cards The right angle adapter can be used directly with the probe head or attached to the Y lead adapter or ground leads The right angle adapter is attached the same way as the push in probe tip and can be easily removed by hand Y lead adapter Use the Y lead adapter to extend the physical reach of the probe and ground when necessary The Y lead adapter accepts any of the probe tips or adapters and can be pushed directly onto 0 025 inch pins When selecting the grounding connection maintain as short a ground path as possible Refer to page 10 for more information To attach the Y lead adapter gently press the lead pins into the probe head tip and ground receptacles Using the black lead for ground is recommended Getting Started 3 and 6 inch ground leads Use the three and six inch ground leads for general probing The socketed end of the leads may be connected to any of the probe tips and adapters or fitted onto 0 025 inch pins To attach the ground leads press and rotate the lead pin connector into the ground socket on the probe head The lead may be removed by simply pulling the pin out by hand When selecting the grounding connection maintain as short a ground path as possible Refer to page 10 f
9. bly The probe head is designed for ease of use and high performance Its small size makes it easy to handle in tight areas The probe tip socket is sized to easily press onto 0 025 inch pins for direct access The ground socket provides a short ground path for high fidelity ground connections TEKPROBE Interface The TEKPROBE interface provides power signal and probe characteristic data transfer If your oscilloscope does not support the TEKPROBE interface you can use the optional 1103 probe power supply as an effective interface Contact your local Tektronix representa tive for more information Push in Probe Tip Use the push in probe tip for general purpose probing by hand The tip may also be used as a temporary test point See page 14 for more information The push in probe tip may also be used with the other socketed leads and adapters P6243 Instructions Getting Started P6243 Instructions Right Angle Adapter Installing the Push in Probe Tip Attach the push in probe tip by seating the tip into the probe tip socket and pushing the tip in until it is seated Either end of the tip may be used Do not force the tip Also be careful not to poke yourself with the sharp probe tip To remove the tip gently grab the tip with small pliers and pull the tip out Right angle adapter Use the right angle adapter for low profile probing of 0 025 inch diameter square pins The right
10. creases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TEKTRONIX RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES W2 15AUGO4 E Table of Contents General Safety Summary iii Getting Started nn ee nennen 1 Customer Support 1 Features and Accessories 2 E nfig uration uses eae AE AR E ae 6 Functional Check or Probe Compensation 6 9 9 9 Operating Basics Maximum Non destructive Input Voltage Input Linear Dynamic Range Ground Lead Length 10 Probe Tip Test Points 14 Specifications 15 P6243 Instructions i Table of Contents List of Figures Figure 1 Probe Compensation Connections
11. e however applying voltages above its design limits may damage the probe tip amplifier Please refer to the Specifications section of this manual for the maximum non destructive input voltage and frequency derating information Input Linear Dynamic Range The probe head amplifier used by the P6243 Active Probe has a limited linear operating range To keep the input linearity error less than 4 you must limit the signal input voltage to 8 DC peak AC NOTE The probe can tolerate input voltages of 15 without damage however the linearity error specification does not apply to input voltages exceeding 8 V DC peak AC P6243 Instructions 9 10 Operating Basics Ground Lead Length When you are probing a circuit you should always use as short a ground lead as possible between the probe head and circuit ground The input capacitance of the P6243 and the inductance of the ground lead results in a resonant circuit that can ring Using a shorter ground lead will minimize ringing See Figure 2 En dn dr Low inductance Three inch Six inch Ground Ground Ground Figure 2 Waveform Distortion from Ground Lead Length Figure 3 illustrates the resistance capacitance and inductance that the probe and ground lead adds to a circuit P6243 Instructions Operating Basics R source CD Probe R in L Probe C in V source lt 1 MQ 1 pF fYYY e L g Ground Lead Figure 3 Gr
12. or more information Signal Ground Adapter Low inductance ground lead Use the low inductance ground adapter to substantially reduce ground lead inductance Because the ground lead simply touches the ground reference you can easily move the probe to different points on the device under test To attach press the ground lead into the probe head ground socket When selecting the grounding connection maintain as short a ground path as possible Refer to page 10 for more information Signal Ground Adapter The signal ground adapter is ideal for use with signal ground pairs on 0 100 inch header pins such as FlexLead adapters Attach the signal ground adapter by gently pressing it into the ground socket on the probe head P6243 Instructions Getting Started KlipChip SMT KlipChip Use the SMT KlipChip test clips to access fragile dense circuitry KlipChip test clips connect to the Y lead or three or six inch ground leads Simply press the lead socket into the KlipChip handle The KlipChip body freely turns allowing better probe orientation To reduce stress and provide a lower profile on components being tested the flexible sleeve of the KlipChip bends up to a 35 degree angle P6243 Instructions Color Marker Bands Attach matching pairs of the color marker bands onto the cable at the head and compensation box of each probe The marker bands enable quick verifica
13. ound Lead Equivalent Circuit You can determine if ground lead effects may be a problem in your application if you know the inductance L of the ground lead and input capacitance C of the probe Calculate the approximate resonant frequency fo at which this parasitic circuit will resonate with the following formula 1 2 VLC The preceding equation shows that reducing the ground lead inductance will raise the resonant frequency If your measurements are affected by ringing your goal is to lower the inductance of your ground path until the resulting resonant frequency is well above the frequency of your measurements P6243 Instructions 11 Operating Basics Low inductance Grounding Placing a ground plane on top of a package being probed can minimize ground lead length and inductance See Figure 4 Figure 4 Low inductance Grounding Attach a thin piece of copper on top of the package and connect it to the package ground connection Use the low inductance ground lead provided with the probe to keep the ground lead length as short as possible This method is very useful when making many measurements on the same package Using a ground plane on the package makes probing the package easier and avoids adding unnecessary ground lead length 12 P6243 Instructions Operating Basics SureFoot Grounding If you cannot use the low inductance grounding method recom mended the probe may be grounded to the package
14. tion of which probe is connected to which instrument channel SureFoot probe tip optional The SureFoot tip is an integral probe tip and miniature guide that enables fault free probing of fine pitch SMD packages Attach the SureFoot adapters the same way as the push in probe tips They can be used with any of the socketed accessory leads SF502 The blue SureFoot tip is compatible with 0 025 inch JEDEC and 0 65 mm EIAJ packages SF503 The red SureFoot tip is compatible with 0 5 mm EIAJ packages Getting Started Configuration A The P6243 Active Probe provides the oscilloscope with the probe model number serial number and attenuation factor When connected to a TEKPROBE oscilloscope display readouts are corrected for the probe attenuation factor the instrument input is set to 50 Q and the coupling is set to DC CAUTION Do not attempt to install the P6243 Active Probe on a non TEKPROBE connector Damage to the probe and connector may result If your oscilloscope does not support the TEKPROBE interface use the optional Tektronix 1103 Probe Power Supply If the P6243 Active Probe 15 used with the Tektronix 1103 Probe Power Supply be sure to have a 50 Q termination at the oscillo scope Also set the oscilloscope channel coupling to DC Functional Check or Probe Compensation After installing the probe on the oscilloscope perform a functional check or compensate the probe using the PROBE COMPENSA TION
15. under test using a SureFoot adapter Refer to Figure 5 Figure 5 Using a SureFoot Adapter for Grounding P6243 Instructions 13 Operating Basics Probe Tip Test Points The push in probe tip or a 0 025 square pin can be soldered into a circuit to be used as a temporary test point See Figure 6 Solder the tip onto a lead or pin with a low power soldering iron Press the probe head onto the tip to make a measurement and then pull the probe head off when you are done The probe tip may be removed and reused by desoldering it from the circuit and soldering it into another circuit in the future Figure 6 Using a Probe Tip as a Test Point NOTE It is not recommended that pieces of solid core copper wire be used as test points If the wire breaks off in the probe tip socket it may be impossible to remove the wire and it will prevent insertion of other accessory tips 14 P6243 Instructions A AA Specifications The warranted specifications in Table 1 apply to a P6243 Active Probe when the probe and the host instrument are allowed to warm up for 20 minutes before measurements are taken The warranted specifications that appear in boldface type are specifications checked in the Performance Verification section of the service manual The specifications in Tables 2 through NO TAG are provided as general information for your convenience voltage range to the probe Damage to the probe or circuit under test T CAU
16. ut capacitance The low input capacitance and high input resistance of the probe minimize circuit loading over a wide bandwidth The probe has a small profile and low mass that makes probing crowded circuits fast and easy The accessory tips and adapters allow for a wide variety of circuit connections The P6243 Active Probe obtains power from the host oscilloscope through the TEKPROBE interface For oscilloscopes and instruments that do not have the TEKPROBE interface use the optional Tektronix 1103 Probe Power Supply For service information including part numbers of standard and optional accessories refer to the P6243 Service Manual 070 9409 XX Customer Support To help you get the best performance from your probe Tektronix offers the following customer support Using Your Probe If you need assistance using your probe please call 1 800 TEK WIDE 1 800 835 9433 and ask for the Customer Support Center you are outside the United States or Canada please contact your nearest Tektronix Service Center Servicing Your Probe For service and service related questions please contact your nearest Tektronix Service Center P6243 Instructions 1 Getting Started Features and Accessories Probe Tip Socket The P6243 Active Probe has features and accessories to make probing and measurement a simpler task Please take a moment to familiarize yourself with these items and their uses Ground Probe Head Assem
17. ypical Frequency Response P6243 Instructions 17 Specifications 150 mV 100 mV 50 mV 0 mV Display Error 50 mV 100 mV 150 mV 20V 10V OV 10V 20V Vin Figure 8 Typical Linearity Error vs Vin 18 P6243 Instructions Specifications 10 MQ 1 MQ 100 10 1kQ 100 Q 10 Q 100Hz 1kHz 10kHz 100kHz 1MHz 10MHz 100 MHz 1 GHz Figure 9 Typical Input Impedance vs Frequency P6243 Instructions 19 Specifications 25V 20 V 15V 10V 5V oV 1 MHz 10 MHz 100 MHz 1 GHz Figure 10 Typical Non Destructive Peak Voltage Derating vs Frequency 20 P6243 Instructions Specifications Table 3 Physical Characteristics Net Weight Cable Length 63 8 g 2 25 ounces 1 3 meter 4 3 ft Table 4 Environmental Characteristics Operating Temperature Non operating Temperature 0 C to 50 C 32 F to 122 F The environmental exposure is the procedure stated in Tektronix Design Standard 062 2847 00 for Class 5 equipment 40 C to 71 C 40 F to 160 F The environmental exposure is the procedure stated in Tektronix Design Standard 0
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