Instruction Manual P6207 FET Probe 070-7909-02
Contents
1. P6207 Instruction Manual 1 7 Operating Information TEKPROBE Interface Cable The interface cable connector houses the TEKPROBE interface contact pins and provides a positive attach ment to the host instrument To install the probe first connect the SMA cable between the compensation box and oscilloscope input Next push the interface cable connector firmly into the oscilloscope input connector labelled PROBE POWER the connector is keyed to latch into place in only one orientation To remove the interface cable pull the spring loaded connector housing back along the cable and then withdraw the assembly from the PROBE POWER connector Wrist Strap Wear the wrist strap properly connected to ground to prevent electrostatic discharge damage to static sensi tive devices including the probe Refer to Electrostatic Discharge in the front of this manual for more informa tion about static control practices The TEKPROBE Interface 1 8 The TEKPROBE interface provides a communication path between the probe and the host instrument Contact pins provide connections for power signal offset and data transfer The interface allows the oscilloscope to configure for the correct attenuation factor input impedance and DC offset The instrument can also access the probe serial number Your oscilloscope may not implement all features of the TEKPROBE interface Check your oscilloscope manual for details User In2. Optional Accessory SUB d o qeooejdou jenueyy U10119n1ISU Z0c9d ZL c Fig amp Index Tektronix Serial No Mfr No Part No Effective Dscont Qty 12345 Name amp Description Code Mfr Part No 2 3 1 P6207 PROBE ACTIVE 4 GHZ 0 3PF 10X SMA 1 200 3961 00 1 COVER PROBE TIP ESD PROTECTIVE TK1163 ORDER BY DESC STANDARD ACCESSORIES 2 015 1020 00 1 TERM COAXIAL SHORT CIRCUIT SMA 80009 015102000 3 015 1021 00 1 TERM COAXIAL SHORT CIRCUIT SMA 80009 015102100 4 174 1120 00 1 CABLE ASSY RF 50 OHM COAX 8 5 L TK2469 ORDER BY DESC 5 131 5482 00 1 CONTACT ELEC TIP GROUND PKG OF 2 EAOF5 8X345 131 5482 00 LENGTHS 6 131 5308 00 8 CONTACT ELEC 4 LEGS TK1326 ORDER BY DESC 7 131 5309 00 5 CONTACT ELEC 1 LEG TK1326 ORDER BY DESC 8 2 BAND MARKER 0 371 DIA BLACK PLASTIC 2 BAND MARKER 0 371 DIA ORANGE PLASTIC ooo 2 BAND MARKER 0 371 DIA RED PLASTIC 2 BAND MARKER 0 371 DIA SILVER GRAY PLASTIC SEE OPTIONAL ACCESSORIES 9 2 ADAPTER SMD ORANGE 50 MIL 2 ADAPTER SMD BLUE 0 65 mm 25 mil 2 ADAPTER SMD RED 0 50 mm 20 mil SEE OPTIONAL ACCESSORIES 10 006 3415 04 1 STRAPWRIST 3M TYPE ADJ 6FT COILED CORD 80009 006790900 070 7909 02 1 MANUAL TECH INSTR P6207 80009 070790902 sued ojqeooejdou uoneunoju BOIAIOS Fig amp Index Tektronix Serial No Mfr No Part No Effective Dscont Qty 12345 Name amp Description Code Mfr Part No OPT
3. Figure 1 1 Figure 1 2 Figure 1 3 Figure 1 4 Figure 1 5 Figure 1 6 Figure 1 7 Figure 1 8 Figure 1 9 Figure 1 10 Figure 1 11 Figure 1 12 Figure 2 1 Figure 2 2 Figure 2 3 Figure A 1 Figure A 2 Figure A 3 List of Figures The P6207 FET Probe and Standard Accessories The TEKPROBE SMA Probe Interface Connectors Installing Four Post Ground SOCKEIS aaa San ee Anes when Installing Edge Tab Ground SOCKGIS Urbe sis Using the SureFoot Adapter Ground Lead Equivalent Circuit Calibration Step Generator Setup Attenuation Test Initial Setup Attenuation Test Final Setup Rise Time Test Initial Setup Rise Time Final Test Setup Probe Offset Setup Functional Block Diagram of the Probe A et Bots Probe Interface Pin Assignments P6207 and Accessories Typical Input Impedance vs Frequency esee Voltage Derating vs Frequency Typical Frequency Response Contents List of Tables Table 1 1 Required Test Equipment 1 19 Table 2 1 Troubleshooting Guide 2 9 Table A 1 Warranted P6207 FET Probe Characteristics A 2 Table A 2 Nominal and Typical Characteristics A 3 Table A 3 Environmental Characteristics A 4 Table A 4 Physical Characteristics A 5 P6207 Instruction Manual V Contents vi Welcome This manual describes the T
4. Ground Lead Inductance in Operating information Check oscilloscope vertical amplifier fuses Replace probe Replace probe 2 9 Maintenance Table 2 1 Troubleshooting Guide Cont Fault Indication Probable Cause Corrective Action Signal intermittent or absent Oscilloscope does not respond to installed probe 1 1 Broken or unsoldered wire or component in compensation box Defective probe head assembly Signal path shorted to ground EEPROM damaged Oscilloscope does not support TEKPROBE interface 1 Replace probe 2 Replace probe 3 Replace probe 1 Replace probe 2 Check oscilloscope manual to determine which features are supported Corrective Maintenance Corrective maintenance consists of replacing defective parts or assemblies To ensure satisfactory operation and performance of your P6207 probe no internal parts or assemblies are field replaceable except for the TEKPROBE interface contact pins For information about replaceable accessories refer to Replaceable Parts 2 10 Service Information Maintenance Precautions To prevent electric shock disconnect the probe from both signal source and oscillo scope or power supply before performing corrective maintenance To maintain probe performance do not attempt to replace the individual components contained on or in the replaceable assemblies Obtaining Replacement Pa
5. SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES Contents zig d ae vii Operator Safety Summary vii Service Safety Summary viii Electrostatic Discharge ix Manual Organization x Conventions 200 coccion xi Contacting Tektronix xii User Information General Information 1 1 Product Description 1 1 Standard Accessories 1 2 Operating Information 1 3 Probe Handling 1 3 Probe Pals etn I Eck ERES 1 4 Ground Connection 1 5 Probe Head and Cable 1 6 Marker rings sor ts 1 6 Compensation Box 1 6 SMA CAS osa RO mes 1 7 TEKPROBE Interface Cable 1 8 Wrist SUD aussen 1 8 The TEKPROBE Interface 1 8 Standard Accessories 1 9 Low Inductance Contact Spring Tip 1 9 ESD Protective Tip 1 10 SMA Shorting Caps 1 10 P6207 Instruction Manual i Contents Four Post Ground Sockets 1 11 Edge Tab Ground Sockets 1 12 SureFoot Adapters 1 12 Ground Lead Inductance 1 13 Input Linear Dynamic Range 1 14 Performance Verification 1 17 When to
6. expected signal using an alternative method Verify that the vertical amplifier section of your oscilloscope is operating and correctly adjusted L Step 3 Check calibration Measurement errors will result if either the oscilloscope or probe are out of calibration L Step 4 Make visual checks Many problems can be located visually Check all equipment for broken wires damaged connectors or damaged circuit boards and components When heat damaged components are discovered be certain to isolate and repair the cause of the overheating to prevent recurrence of the problem L Step 5 Refer to the troubleshooting guide Table 2 1 L Step 6 Contact your local Tektronix field office or representative Service Information Maintenance Table 2 1 Troubleshooting Guide Fault Indication Wrong attenuation factor Rise time or aberra tions exceed specification Probe output exceeds offset specification Probable Cause 1 Defective probe assembly 2 Input signal amplitude exceeds probe dynamic range 1 Defective probe head assembly 2 Excessive ground lead inductance 1 Defective power supply 2 Broken or unsoldered wire or component in compensation box 3 Hybrid assembly damaged by static discharge P6207 Instruction Manual Corrective Action 1 Replace probe Reduce signal amplitude to within specification limits Replace probe Reduce ground lead inductance refer to
7. the performance limitations of your probe This section also explains how to use the standard accessories that are shipped with your probe Performance Verification provides procedures that you can follow to verify the performance of your probe Section 2 Service Information Service should be performed only by qualified service personnel Theory of Operation provides information and diagrams to help you understand how the probe works Maintenance describes preventive maintenance and troubleshooting and gives you the information you need to replace probe modules or return the probe for repair or replacement Maintenance also lists the re placeable parts of your probe as well as the available optional accessories If your probe fails or does not perform as specified and you cannot resolve the problem using the information in Maintenance please contact your Tektronix Service Center Welcome Appendix Appendix A lists selected electrical environmental and physical specifications of the P6207 FET Probe Index Use the index to locate specific information quickly Conventions This manual uses the following conventions when referring to Tektronix products m P6207 refers to the P6207 FET Probe m Calibration generator refers to any of the Tektronix 067 1338 0X Calibration Step Generators Sampling head refers to any of the following Tektronix sampling heads SD 22 SD 24 SD 26 The following convention appli
8. 00k ohms 7 7 degrees 10k A 1k S S s 3 o 3 c 100 amp o 10 1 10k 100 k 1M 10M 100 M 1G 10G Frequency Hz Figure A 1 Typical Input Impedance vs Frequency A 6 Appendix Specifications 50 40 S 8 S 30 S 3 Q Ez 20 3 E x 10 0 10M 100 M 1G 10G Frequency Hz Figure A 2 Voltage Derating vs Frequency P6207 Instruction Manual A 7 Specifications 1 0 0 0 1 0 2 0 3 0 Vout dB 4 0 5 0 6 0 1M 10M 100 M 1G Frequency Hz Figure A 3 Typical Frequency Response 10G Appendix Index A accessories 1 9 1 13 ESD protective tip 1 10 ESD protective tip cover ix marker rings 1 6 shorting caps 1 10 spring tip 7 9 attenuation failure 2 9 specification 1 23 C caution statements vii circuit boards probing 1 9 1 11 1 12 cleaning 2 6 compensation box 2 3 2 4 connector interface 2 4 connectors probing 1 9 contacting Tektronix xii D description of product 7 7 dynamic range 1 14 P6207 Instruction Manual Index E edge connectors probing 1 9 electrostatic discharge precautions ix ESD protective tip cover ix 1 10 exploded view 2 16 2 18 explosive atmo
9. INTERNAL CLOCK OUT To INTERNAL CLOCK OUT on Rear Panel NONI Calibration Step Generator Oscilloscope Power Supply Calibration Step Generator Calibration Step Generator Remote Head Wrist Strap Figure 1 7 Calibration Step Generator Setup L Step 1 From the oscilloscope setup menu recall the factory setup Step 2 Make or verify the following oscilloscope settings volts division 50 mV time division 2 us trigger Source internal clock 200 kHz 1 20 User Information Performance Verification acquisition mode averaging number of waveforms to average za tis 16 cursor type horizontal bars display type vectors L Step 3 Connect the calibration step generator remote head to the channel 1 input of the oscillo scope Refer to Figure 1 8 Oscilloscope Calibration Step Generator IN ooooooo Calibration Step Generator Remote Head Figure 1 8 Attenuation Test Initial Setup O Step 4 If necessary adjust the oscilloscope to obtain a display similar to that shown in Figure 1 8 Use the cursor measurement capability of the oscilloscope to display the A voltage of the wave form Measure the low frequency portion of the waveform near the back corner see figure at left Record the A voltage as Vj L Step 5 Disconnect the calibration generator re mote h
10. IONAL ACCESSORIES 9 342 1039 10 12 ADAPTER SMD ORANGE 50 MIL 80009 342103910 342 1038 10 12 ADAPTER SMD BLUE 0 65 mm 25 mil 80009 342103810 342 1037 10 12 ADAPTER SMD RED 0 50 mm 20 mil 80009 342103710 11 013 0271 00 1 ADAPTER T TIP SMA TO SD14 80009 013027100 016 0633 00 1 MARKER SET CA 2 EA VARIOUS COLORS 80009 016063300 SUB d o qeooejdou Appendix Specifications This section lists the electrical environmental and physical characteristics of the P6207 FET Probe Fol lowing the specification tables are a series of graphs that characterize impedance by frequency maximum input voltage by frequency and typical bandwidth Performance Conditions The electrical performance specifications listed in tables A 1 and A 2 apply to a calibrated probe used with a calibrated oscilloscope system each operating within the environmental limitations listed in Table A 3 Performance Verification Specifications are separated into two categories war ranted specifications and nominal or typical character istics Warranted characteristics Table A 1 are guaranteed performance specifications This manual provides performance verification procedures for these specifica tions Nominal and typical characteristics Table A 2 are not guaranteed and are provided to characterize the config uration performance or operation of typical systems In any table supplemental information consists of explanatory notes se
11. Instruction Manual Tektronix P6207 FET Probe 070 7909 02 Warning The servicing instructions are for use by qualified personnel only To avoid personal injury do not perform any servicing unless you are qualified to do so Refer to all safety summaries prior to performing service Copyright O Tektronix Inc All rights reserved 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 Printed in the U S A Tektronix Inc P O Box 1000 Wilsonville OR 97070 1000 TEKTRONIX TEK and TEKPROBE are registered trademarks of Tektronix Inc WARRANTY Tektronix warrants that the products that 1t manufactures and sells will be free from defects in materials and workmanship for a period of one 1 year from the date of shipment If a 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 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 Tektro
12. Rise Time This procedure verifies that the probe meets rise time specifications The probe rise time is calculated from rise times ob tained by measuring the test system without the probe attached and the test system plus the probe O Step 1 After completing the previous procedure disconnect the calibration step generator remote head from the probe tip adapter Disconnect the probe SMA cable and the probe interface cable from the oscilloscope L Step 2 Connect the calibration step generator remote head to the channel 1 input of the oscillo scope L Step 3 Set the oscilloscope volts division to 50 mV O Step 4 Use the oscilloscope horizontal menu to set the Main Position to O seconds O Step 5 Using the oscilloscope General Purpose knob to keep the rising edge of the calibration signal on screen by adjusting the horizontal Main Position set the oscilloscope time division to 100 ps The display should resemble that shown in Figure 1 10 1 24 User Information Oscilloscope Performance Verification Calibration Step Generator IN ccccccc Calibration Step Generator Remote Head Figure 1 10 Rise Time Test Initial Setup Ol Ol Ol Step 6 Use the oscilloscope measurement capa bility to display rise time Rise time is determined from the 10 and 90 amplitude points on the waveform Record the rise time as t Step 7 Disconnect the calibration generator re mote head from
13. Verify Performance 1 17 Limits and Tolerances 1 18 Test Equipment Required 1 18 Stabilization cc cols our 1 18 Equipment Operation 1 18 Equipment Connections 1 19 Rise TIMO odes roni pa 1 24 Probe Output Offset Zero 1 28 Offset Function 1 30 Service Information Theory of Operation 2 1 Probe Head Eee 2 3 Compensation Box 2 3 TEKPROBE Interface 2 3 Compensation Circuits 2 4 Maintenance 2 5 Preventive Maintenance 2 5 Static Sensitive Devices 2 6 Cleaning css 8 fb y xu ERE ERE EN 2 6 EXIGIIO orga rp A ee is TEES 2 7 e A Ee US EMUSERYXS ELA 2 7 Visual Inspection 2 7 Troubleshooting ee 2 7 Troubleshooting Techniques 2 8 Corrective Maintenance 2 10 Precautions y a rs s C RN DRE ER 2 11 Contents Obtaining Replacement Parts 2 11 Ordering Parts ooooooo o o 2 11 Replaceable Parts List 2 13 Parts Ordering Information 2 13 Using The Replaceable Parts List 2 14 Appendix Specifications 3225022222 tee A 1 Performance Conditions A 1 Performance Verification A 1 Index NAO Et l 1 P6207 Instruction Manual iii Contents
14. ange in the part number Change information if any is located at the rear of this manual P6207 Instruction Manual 2 13 Replaceable Parts Using The Replaceable Parts List The tabular information in the replaceable parts list is arranged for quick retrieval Understanding the struc ture and features of the list will help you find the all the information you need for ordering replacement parts Item Names In the replaceable parts list an Item Name is separated from the description by a colon Because of space limitations an Item Name may sometimes appear as incomplete For further Item Name identification U S Federal Cataloging Handbook H6 1 can be used where possible Abbreviations Abbreviations conform to American National Standards Institute ANSI standard Y1 1 Service Information jenueyy U10119n1ISU Z0c9d GL Z CROSS INDEX MFR CODE NUMBER TO MANUFACTURER Code Manufacturer Address City State Zip Code TK1163 POLYCAST INC 9898 SW TIGARD ST TIGARD OR 97223 TK1326 NORTHWEST FOURSLIDE INC 18224 SW 100TH CT TUALATIN OR 97062 TK2469 UNITREK CORPORATION 3000 LEWIS amp CLARK WAY VANCOUVER WA 98601 SUITE 2 8X345 NORTHWEST SPRING amp MFG CO 5858 WILLOW LANE LAKE OSWEGO OR 97034 5343 80009 TEKTRONIX INC 14150 SW KARL BRAUN DR BEAVERTON OR 97077 0001 PO BOX 500 sued ojqeooejdou 9L E UONEW IOJU 931AJ9S E Figure 2 3 P6207 and Accessories qq Standard Accessories
15. ation is provided for orientation purposes only The P6207 FET Probe can be divided into two function al blocks the probe head and the compensation box Figure 2 1 shows a block diagram of the probe divided into the two functional areas P6207 Instruction Manual 2 1 Theory of Operation Pole Transistor Cable FETs Buffer 72 5 k 50 V Input From lt we gt gt NW Probe Tip V 225k To BIAS Comp Box SENSE INPUT OFFSET Probe Head Probe Head Cable Assembly 15 V lt 4 15V 5 V 5V Cable 3 Output V From Probe BIAS Head SENSE late ge ircuit To From INPUT OFFSET Oscilloscope Compensation Box Assembly Figure 2 1 Functional Block Diagram of the Probe 2 2 Service Information Theory of Operation Probe Head The probe head houses a hybrid assembly The hybrid assembly contains a high impedance attenuator and a high frequency unity gain FET buffer The active buffer circuit has a totem pole FET input stage and a transistor buffer output stage Compensation Box The compensation box on a P6207 probe houses the TEKPROBE interface board and the probe compensa tion circuit board TEKPROBE Interface The P6207 features the TEKPROBE Level 2 interface When used with a compatible oscilloscope the probe is powered by the host instrument and provides the oscilloscope with the probe model number serial number and attenuation factor The os
16. ation verification 1 17 1 30 specifications A 1 A 8 aberrations A 3 bandwidth A 3 cable length A 5 capacitance input A 3 conditions A 1 delay time signal A 3 dynamic range A 3 electrical A 3 environmental A 4 frequency response A 8 humidity A 4 impedance input A 6 linearity A 3 offset range A 4 physical A 5 resistance input A 3 static discharge A 4 temperature range A 4 thermal drift A 3 voltage derating curve A 7 voltage maximum A 4 weight A 5 spring tip 7 9 static damage preventing 1 19 2 6 static protection 1 10 SureFoot adapters 1 12 T TEKPROBE interface 1 8 2 3 2 4 TEKPROBE interface contact pins 1 8 telephone number xii P6207 Instruction Manual Index theory of operation 2 1 2 4 troubleshooting 2 7 2 10 V voltage derating A 7 W warning statements viii Index 1 4 Index
17. cilloscope input channel is automatically set to 50 Q if applicable and the display readout is automatically corrected for the probe attenuation factor Figure 2 2 shows the pin assignments for the P6207 FET Probe data and power connector P6207 Instruction Manual 2 3 Theory of Operation 2 4 DATA Figure 2 2 Probe Interface Pin Assignments Compensation Circuits Probe compensation is accomplished in three function al areas voltage regulation feedforward correction and DC offset drive Voltage Regulation Voltage regulators control the precision low voltage supplies required by the probe head hybrid circuit Feedforward Correction Feedforward correction ensures the low frequency accuracy of the probe and sets the input offset voltage for the probe head hybrid Circuit Offset Drive The offset drive circuit controls the offset voltage seen by the feedforward correction cir cuit translating the oscilloscope offset voltage into a voltage appropriate for the probe head hybrid circuit Service Information Maintenance Maintenance provides information about the following maintenance topics m preventive maintenance m troubleshooting corrective maintenance Preventive Maintenance To prevent electric shock disconnect the probe from both signal source and oscillo scope or power supply before performing preventive maintenance Preventive maintenance consists of cleaning and visual inspect
18. e 1 5 Using the SureFoot Adapter Ground Lead Inductance When you touch your probe tip to a circuit element you are introducing a new resistance capacitance and inductance into the circuit Refer to Figure 1 6 R source Probe R 100 kQ Probe C 400 fF Vsource L Ground Lead Figure 1 6 Ground Lead Equivalent Circuit P6207 Instruction Manual 1 13 Operating Information For most circuits the high input resistance of the probe has a negligible effect The series inductances repre sented by the probe tip and ground lead however can result in a parasitic resonant circuit that may ring within the bandwidth of your oscilloscope Note that the ringing and rise time degradation could be masked if the frequency content of the signal degra dation is beyond the bandwidth of the oscilloscope You can determine if ground lead effects are likely to be a problem in your application If you know the self inductance L and capacitance C of your probe and ground lead you can calculate the approximate resonant frequency fo at which this parasitic circuit will resonate The preceding equation shows that reducing the ground lead inductance will raise the resonant frequen cy 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 at which you want to take measurements The low inductance gro
19. e output voltage typical Probe tip to output con nector 50 points of a 250 mV gt p input signal typical typical Refer to Figure A 1 for typical input impedance typical Probe operating Refer to Figure A 1 for typical input impedance typical Within dynamic range A 3 Specifications Table A 2 Nominal and Typical Characteristics cont Supplemental Characteristic Description Information Offset Range 5V nominal Not adjustable Maximum Nonde 40V typical structive Input Voltage DC plus peak AC Refer to Figure A 2 Probe Coding TEKPROBE SMA Level 2 Table A 3 Environmental Characteristics Supplemental Characteristic Description Information Electrostatic Tektronix does not Immunity warrant the P6207 FET Probe to meet the requirements listed in IEC 801 2 Humidity 10 to 30 C Meets the requirements lt 95 R H of MIL STD 28800 E 30 to 40 C Type Ill Class 5 lt 75 R H 40 to 50 C lt 45 R H Temperature Range Meets the requirements Operating 0 to 50 C of MIL STD 28800 E 32 to 122 F Type Ill Class 5 Nonoperating 40 to 71 C 40 to 160 F A 4 Appendix Specifications Table A 4 Physical Characteristics Performance Supplemental Characteristic Requirement Information Shipping Weight 0 1 kg nominal including 0 22 Ibs accessories Probe Cable Length im nominal 3 3 ft P6207 Instruction Manual A 5 Specifications 1
20. e probe is susceptible to damage from electrostatic discharge ESD and from overdrive sig nals and excessive DC voltages Be sure to operate the probe only in a static controlled environment Be sure to discharge to ground any electrostatic charge that may be present on cables or circuit board runs before connecting the probe Wear a wrist grounding strap whenever you handle the probe and in particular when handling either the probe tip or the output connector Install the ESD protective tip cover whenever the probe is not in use Whenever you handle static sensitive devices follow these general precautions m Minimize handling of components Handle compo nents only at a static free workstation m Place component assemblies on a metal or other conductive surface Do not slide the assembly across any surface m Wear a wrist strap when handling component assemblies to discharge static voltage from your body m Avoid materials that are capable of generating a static charge Welcome Manual Organization This manual is divided into two sections user informa tion and service information Section 1 User Information General Information describes the P6207 FET Probe Read General Information for an overview of probe features and accessories Operating Information gives you the information you need to make effective use of your P6207 FET Probe Read Operating Information to understand important operating concepts and
21. ead from the oscilloscope input L Step 6 Using the probe SMA cable connect the probe to the oscilloscope channel 1 input P6207 Instruction Manual 1 21 Performance Verification Oscilloscope Connect the probe interface cable to the oscillo scope PROBE POWER connector L Step 7 Attach the SMA 50 Q termination to one side of the probe tip adapter Connect the probe tip adapter to the calibration step generator remote head using the SMA female female adapter Insert the probe tip into the probe tip adapter and secure the probe tip by tightening the thumb screw on the probe tip adapter Refer to Figure 1 9 Calibration Step Generator Probe Tip Wrist Strap 1 22 Adapter Calibration Step Generator Remote Head Figure 1 9 Attenuation Test Final Setup L Step 8 Set the oscilloscope volts division to 50 mV O Step 9 If necessary adjust the oscilloscope to center the display Use the cursor measurement capability of the oscilloscope to display the A voltage of the wave form Measure the low frequency portion of the waveform near the back corner Record the A volt age as Vo User Information Performance Verification _ Step 10 Calculate the attenuation error using the following formula error 2 A x 100 1 O Step 11 Check probe attenuation The attenuation error must be lt 2 0 P6207 Instruction Manual 1 23 Performance Verification
22. ektronix P6207 FET Probe and provides operating maintenance and accessory information Operator Safety Summary Please exercise care when operating this or any equip ment In addition to applying common sense please keep the following in mind as you use your P6207 FET Probe Do Not Operate In Explosive Atmospheres To avoid explosion do not operate this product in an explosive atmosphere unless the product has been specifically certified for such operation Safety Terms The following terms and symbols appear in this manual To prevent damage to your probe or other property carefully read the caution statement P6207 Instruction Manual vii viii Welcome To prevent injury carefully read and follow the instructions given in a warning statement To prevent damage caused by electrostatic discharge wear a properly grounded wrist strap and observe static control precautions Service Safety Summary The probe should be serviced only by qualified service personnel To prevent personal injury disconnect the probe from any signal or power source before servicing Do not service electrical equipment unless another person capable of rendering first aid and resuscitation is present Welcome Electrostatic Discharge P6207 Instruction Manual To prevent damage to the instrument and probe follow the precautions described in this manual and the manuals accompanying your oscilloscope Circuitry in th
23. es to procedures m Literal equipment connectors or controls are indi cated by bold face type as shown in the following example Connect the cable to the oscilloscope output labelled CALIBRATOR This convention does not apply to descriptive names of features and controls Your oscilloscope may not have a calibrator output P6207 Instruction Manual xi xii Welcome Contacting Tektronix There are a number of ways that you can obtain prod uct support service support or other information Product Support For application oriented questions about a Tektronix measurement product call toll free in North America 1 800 TEK WIDE 1 800 835 9433 ext 2400 6 00 a m 5 00 p m Pacific time Or contact us by e mail tm_app_supp tek com For product support outside of North America contact your local Tektronix distributor or sales office Service Support Contact your local Tektronix distributor or sales office Or visit our web site for a listing of worldwide service locations http www tek com For other information In North America 1 800 TEK WIDE 1 800 835 9433 An operator will direct your call To write us Tektronix Inc PO Box 1000 Wilsonville OR 97070 1000 User Information General Information General Information describes the P6207 FET Probe and lists standard probe accessories Product Description The Tektronix P6207 is an active 10X attenuating probe that is compatible with Te
24. formation Operating Information Standard Accessories The standard accessories provided with your probe will help you make effective use of the P6207 FET Probe Use the descriptions below to determine which acces sories are appropriate for your application For a list of optional accessories study the replaceable parts list found under Maintenance in Section 2 Low Inductance Contact Spring Tip Use the low inductance spring tip assembly to reduce ground lead inductance The performance of a probe fitted with the low inductance ground contact ap proaches that of no lead probe fixtures and adapters With the spring tip assembly installed measurements up to the system bandwidth of your probe and oscilloscope can be made with negligible signal degradation caused by ground lead inductance effects Refer to Ground Lead Inductance later in this section The low inductance spring tip is ideal for repetitive production use Because the spring tip is slightly flex ible you can use it on a variety of components includ ing edge connectors IC packages multi pin connectors and receptacles and adjacent runs on circuit boards or other devices Because the spring tip simply contacts the ground reference instead of clipping onto it you can move the probe around your device under test with ease Use care to avoid accidentally shorting component leads to ground with the spring tip contact To install the low inductance sprin
25. g tip contact push it onto the metal barrel of the probe tip while taking care not to pierce yourself with the sharp probe tip P6207 Instruction Manual 1 9 Operating Information NOTE The spring contact installs more easily if you rotate the spring counterclockwise loosening the spring tension slightly as you push it onto the probe barrel ESD Protective Tip Use the ESD electrostatic discharge protective tip cover to reduce the chance of static discharge damage to your probe Place the protective cover over the probe tip whenever you are not using the probe to make measurements SMA Shorting Caps Use the SMA shorting caps to reduce the chance of static discharge damage to your probe Connect the hex head shorting cap to the compensation box output connector when no cable is attached to the compensa tion box Connect the knurled shorting cap to the SMA cable when the cable is attached and the probe is not connected to an instrument User Information Operating Information Four Post Ground Sockets Use the four post ground sockets to design in minimum inductance test points on your next circuit board With this type of socket installed the practical frequency limit of your measurements is determined by system perfor mance specifications instead of ground lead inductance effects These adapters are available in large quantities For maximum performance and ease of testing we strongly recommend that you incorp
26. immerse the probe or use abrasive cleaners Interior With normal use the interior of the probe compensation box will not require cleaning Visual Inspection The best indicator of probe condition is the perfor mance of the probe In addition to performing the performance verification procedures occasionally inspect the probe tip body cable compensation box and connectors for bent broken or damaged parts To ensure optimum performance of your probe replace any damaged assembly as soon as practical Troubleshooting If your probe fails to operate or meet a performance requirement use the following information to determine the appropriate corrective action Table 2 1 lists a number of possible probe problems their probable cause and recommended actions Procedures for replacing failed or defective parts are provided after Table 2 1 P6207 Instruction Manual 2 7 Maintenance 2 8 Troubleshooting Techniques To simplify troubleshooting follow the steps listed below The steps help you eliminate some other trouble areas before identifying the probe as defective O Step 1 Check probe operation Review the operat ing information contained in Section 1 of this manu al including specifications and performance limitations Be certain that you are using the probe appropriately O Step 2 Check associated equipment Associated equipment at either the input or output end of the probe may be defective Verify the
27. ion Performed on a regular basis preventive maintenance will improve reliability and can prevent probe failure The severity of the environment in which you use your probe should determine the frequency of maintenance A convenient time to perform preventive maintenance is just before performing a performance verification proce dure P6207 Instruction Manual 2 5 Maintenance Static Sensitive Devices Cleaning 2 6 The P6207 FET Probe contains devices that are susceptible to damage from static dis charge To prevent damage to static sensitive devices observe the following precautions whenever the covers are off the compensation box or you handle component as semblies Minimize handling of components Handle compo nents only at a static free workstation Place component assemblies on a metal or other conductive surface Do not slide the assembly across any surface Wear a wrist strap when handling component assemblies to discharge static voltage from your body Avoid materials that are capable of generating a static charge To prevent damage to probe materials avoid using chemicals that contain benzine ben zene toluene xylene acetone or similar solvents Service Information Maintenance Exterior Remove accumulated loose dust from the probe exteri or using a soft cloth or small brush Remaining dirt may be removed with a soft cloth dampened with a mild detergent and water solution Do not
28. ktronix TDS 800 Series digitiz ing oscilloscopes With the P6207 you can make high frequency measure ments with less capacitive loading than a passive resistive divider probe The P6207 uses FETs to estab lish the high input impedance at high frequencies that is characteristic of active probes The P6207 has a typical bandwidth of 4 GHz and an input impedance of 100 kQ in parallel with 400 fF fem tofarad The P6207 output must terminate into 50 Q The P6207 FET Probe features the TEKPROBE SMA Level 2 interface When used with a compatible oscilloscope the host instrument provides power for the probe The oscillo scope can also control the probe offset voltage through the interface The probe provides the oscilloscope with the probe model number serial number and attenuation factor Oscilloscope display readouts are corrected for the probe attenuation factor and the oscilloscope input is automatically set to 50 Q if possible Check your oscilloscope manual to determine if your oscilloscope fully supports the TEKPROBE interface P6207 Instruction Manual 1 1 General Information Standard Accessories The P6207 FET Probe is shipped with the following standard accessories m instruction manual m ground contact springs assorted m ESD protective tip cover m edge tab ground sockets 5 m SureFoot probe tip adapters 2 each 0 50 mm 20 mil red 0 65 mm 25 mil blue and 50 mil orange m four post ground s
29. nix 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 increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX 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
30. ockets 8 m marker rings 4 colors 2 each m wrist strap Operating Information in this section describes how to attach and use the standard accessories Part numbers for the standard and optional accessories are listed under Replaceable Parts in Section 2 User Information Operating Information Operating Information discusses several important topics that will help you make the most effective use of your P6207 FET Probe Using the standard accessories is also described NOTE Save the probe shipping and packaging materials for reuse should shipping the probe become necessary Probe Handling Despite its small size and simple appearance the P6207 is a high performance measurement instrument it contains a number of complex components that could be damaged by rough handling To maintain the accu racy and reliability of your probe always handle it carefully For cleaning instructions refer to Maintenance in Sec tion 2 To reduce risk of electric shock and ESD damage keep your fingers behind the finger guard on the probe body P6207 Instruction Manual 1 3 Operating Information The P6207 FET Probe contains static sensitive devices To prevent damage to the probe caused by electrostatic discharge wear a properly grounded wrist strap when handling the probe Refer to Electrostatic Discharge following the safety information at the front of this manual Probe Parts Figure 1 1 identifies the primary pa
31. orate four post sockets into your next design Install the sockets as shown in Figure 1 3 Ground Reference Pads Four Post Mount Ground Socket 200 Square D55RD37 037 plated hole ECB Mounting Pattern Figure 1 3 Installing Four Post Ground Sockets To use your probe with these adapters insert the probe tip firmly into the adapter until the probe tip contacts the signal test point P6207 Instruction Manual 1 11 Operating Information Edge Tab Ground Sockets Edge tab ground sockets can also be used to provide minimum inductance test points with the same benefits as the four post ground sockets While the four post sockets are more rigidly mounted the edge tab socket is easily mounted in a variety of configurations An example of edge tab ground socket mounting is shown in Figure 1 4 These adapters are also available in large quantities A Figure 1 4 Installing Edge Tab Ground Sockets SureFoot Adapters devices without shorting adjacent leads To accomplish this each adapter has a small tab that fits between the tightly spaced leads to prevent the probe tip from slipping See Figure 1 5 amp The SureFoot adapters allow probing of fine pitch 1 12 User Information Operating Information There are adapters for three pitch sizes 0 50 mm 20 mil red 0 65 mm 25 mil blue and 50 mil orange o m Figur
32. r presented Each procedure assumes that the previous procedure has been com pleted When to Verify Performance You may use the performance verification procedures as an acceptance test for the probe You should verify the performance of the probe after replacing any probe components or attempting any repair With daily use you should verify the performance of your probe at least once a year If your probe fails any of the performance checks refer to Troubleshooting in Section 2 and take the recom mended action P6207 Instruction Manual 1 17 Performance Verification Limits and Tolerances The limits and tolerances given in this procedure apply to the probe under test only Errors arising from test equipment are not included unless specifically noted Test Equipment Required The items listed in Table 1 1 are necessary to complete the performance verification procedures Any specified test equipment specifications are minimum require ments that must be met to ensure that verification results are valid Substituted equipment must meet the minimum performance specifications Stabilization Before beginning the verification procedures be certain to allow sufficient time for the test equipment and probe to stabilize A warm up period of 20 minutes is usually sufficient Equipment Operation If you are unsure of how to use the specified test equip ment refer to the user s manual for the instrument If you have substi
33. rts The components and assemblies used in your P6207 probe are manufactured selected or specified by Tektronix to meet specific performance requirements Order all replacement parts from your local Tektronix field office or representative Ordering Parts When ordering replacement parts for your probe be certain to specify all of the following information m probe type including option or modification num ber m probe serial number m description of the part and circuit number if known m Tektronix part number P6207 Instruction Manual 2 11 Maintenance 2 12 Service Information Replaceable Parts List This section contains a list of the parts that are replace able for the P6207 FET Probe Use this list to identify and order replacement parts Parts Ordering Information Replacement parts are available from or through your local Tektronix Inc service center or representative Changes to Tektronix probes are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest circuit improvements Therefore when ordering parts it is important to include the following information in your order m Part number m Probe type or model number m Probe serial number m Probe modification number if applicable If a part you order has been replaced with a different or improved part your local Tektronix service center or representative will contact you concerning any ch
34. rts of the P6207 FET Probe and shows how the standard accessories are used or attached Detailed information about using the standard accessories is provided later in this section The main components of the probe are the probe head and cable ground connection the compensation box and the TEKPROBE connector User Information Operating Information O Ground Connection Edge Tab Ground Socket 2 Probe Head and Cable Four Post Ground Socket O Marker Band 9 Low Inductance Ground Tip 2 Compensation Box ESD Protective Cover 5 TEKPROBE Contact Pins 19 Shorting Cap SMA Output 6 SMA Cable 12 Shorting Cap SMA Cable 3 SureFoot Adapter Note Wrist strap accessory is not shown Figure 1 1 The P6207 FET Probe and Standard Accessories Ground Connection The ground connection makes it possible to reference the signal at the probe tip to ground The effects of ground lead or ground connection inductance are discussed later in this section P6207 Instruction Manual 1 5 Operating Information The metal barrel of the probe head allows several alternative ground connections Read Standard Acces sories in this section for more information about mak ing ground connections Probe Head and Cable The probe tip makes the physical connection to your test point The probe head contains a hybrid circuit described in greater detail in Theory of Operation in Section 2 The cable gi
35. sion to 100 ps The display should resemble that shown in Figure 1 10 O Step 14 Use the oscilloscope measurement capability to display rise time Rise time is deter mined from the 10 and 90 amplitude points on the waveform Record the rise time as tsp L Step 15 Check that the measured system oscillo scope plus probe rise time ts y meets the system rise time specification The rise time must be lt 105 ps L Step 16 Calculate the probe only rise time using the following formula _ Step 17 Check that the calculated rise time tp meets the probe specification The rise time must be lt 100 ps P6207 Instruction Manual 1 27 Performance Verification Probe Output Offset Zero This procedure verifies that the probe output offset and offset gain meets specification With this procedure you measure the offset voltage that results from attach ing the probe to an oscilloscope input O Step 1 After completing the previous procedure disconnect the probe tip adapter from the calibra tion step generator remote head O Step 2 Verify that the P6207 probe tip is inserted into the probe tip adapter assembly One end of the probe tip adapter is not used Refer to Fig ure 1 12 O Step 3 Make or verify the following oscilloscope settings volts division 20 mV time division 10 us trigger Source internal clock 200 kHz O Step 4 Use the oscilloscope vertical menu
36. spheres vii F fault table 2 9 frequency response curve A 8 G general information 7 7 ground leads inductance 1 13 1 14 reducing inductance 1 9 spring tip 1 9 H hybrid circuit 2 3 Index ICs probing 1 9 identifying probes 1 6 impedance input A 6 inductance reducing 1 9 1 11 1 13 1 14 input linear dynamic range 1 14 interface pin assignments 2 4 TEKPROBE 1 8 intermittent signal 2 10 L linearity 1 14 low inductance ground leads 7 9 M maintenance 2 5 2 12 cleaning 2 6 corrective 2 10 preventive 2 5 replaceable parts 2 16 2 18 replacement parts 2 77 O operating information 1 3 1 16 oscilloscope compatibility 7 7 TEKPROBE compatible 1 8 output offset checking 1 30 specification 1 29 P parts list 2 16 2 18 performance verification 1 17 1 30 output offset 1 30 required equipment 1 19 rise time 1 24 1 27 setup 1 20 when to verify 1 17 phase vs frequency A 6 power cable probe 1 7 preventive maintenance 2 5 probe accessories 1 2 1 5 assembly 1 4 cleaning 2 6 compatibility 7 7 handling 1 3 installation 1 7 interface 2 3 2 4 interface cable 1 8 power 1 7 troubleshooting 2 7 2 10 R receptacles probing 1 9 replacement parts 2 1 1 rise time checking 1 24 1 27 failure 2 9 specification 1 25 Index S safety terms vii short circuit preventing 7 9 shorting caps 1 10 sma probing 1 12 specific
37. the oscilloscope input Step 8 Using the probe SMA cable connect the probe to the oscilloscope channel 1 input Connect the probe interface cable to the oscillo scope PROBE POWER connector Step 9 Connect the probe tip adapter to the calibration step generator remote head using the SMA female female adapter Insert the probe tip into the probe tip adapter and secure the probe tip by tightening the thumb screw on the probe tip adapter Refer to Figure 1 11 P6207 Instruction Manual 1 25 Performance Verification Oscilloscope Calibration Step Generator Probe Tip Adapter Calibration Step Generator Remote Head Wrist Strap Figure 1 11 Rise Time Final Test Setup L Step 10 Set the oscilloscope volts division to 50 mV NOTE The added cable length of the probe will shift the rising edge of the pulse off screen If you can locate the rising edge using the General Purpose knob to adjust the Main Position skip to Step 14 Otherwise follow the steps below to reacquire the leading edge of the pulse L Step 11 Set the oscilloscope time division to 2 us L Step 12 Use the oscilloscope horizontal menu to set the Main Position to O seconds 1 26 User Information Performance Verification O Step 13 Using the oscilloscope General Purpose knob to keep the rising edge of the calibration signal on screen by adjusting the horizontal Main Position set the oscilloscope time divi
38. to set the vertical position and the vertical offset to O V 1 28 User Information Performance Verification Oscilloscope Probe Tip Adapter Wrist Strap P6207 FET Probe Figure 1 12 Probe Offset Setup L Step 5 Measure the displacement of the free run ning trace from the center graticule To obtain the probe offset zero divide the displayed offset by 10 O Step 6 Check that the probe output offset zero meets the probe specification The probe output offset zero voltage must be less than 10 mV P6207 Instruction Manual 1 29 Performance Verification Offset Function 1 30 This procedure verifies that the probe offset responds to input from the oscilloscope The offset range is nominally 5 V _ Step 1 Set the oscilloscope volts division to 2 V L Step 2 Use the oscilloscope vertical menu to set the vertical offset to 5 V Step 3 Check that the free running trace has moved down 2 5 divisions from the center graticule O Step 4 Use the oscilloscope vertical menu to set the vertical offset to 5 V Step 5 Check that the free running trace has moved up 2 5 divisions from the center graticule User Information Service Information Theory of Operation Theory of Operation gives a general idea of how the P6207 FET Probe operates Because the critical assem bly tolerances and modular construction of the P6207 do not support service to the component level this inform
39. tup descriptions or performance characteristics for which no absolute limits are speci fied or that are impractical to verify P6207 Instruction Manual A 1 Specifications Other specifications do not have verification procedures because the characteristics are stable and unlikely to change or the equipment required to verify them is extremely expensive or not readily available Physical and environmental specifications are not verified in this manual Specifications are subject to change without notice Table A 1 Warranted P6207 FET Probe Characteristics Supplemental Characteristic Specification Information Attenuation 10X 2 at DC 2 0 VDC input 50 Q 0 5 load Output Offset 10 mV 20 to 30 C output zero Rise Time lt 100 ps 10 to 90 probe only amplitude A 2 Appendix Table A 2 Characteristic Aberrations first 300 ps after 300 ps Bandwidth DC Thermal Drift Delay Time Dynamic Range Input Capacitance Input Resistance probe Linearity Specifications Nominal and Typical Characteristics Description 15 10 5 gt 4 GHz lt 150 uV C 4 25 ns 200 ps 4Vto 4 V lt 400 fF 100 kQ 5 at DC 3 P6207 Instruction Manual Supplemental Information typical System probe plus oscilloscope aberra tions using Tektronix TDS 820 Digitizing Oscilloscope typical Refer to Figure A 3 for typical frequency re sponse typical Prob
40. tuted test equipment for the instruments or equipment recommended you may have to modify the steps to reflect your setup Refer to the appropriate instrument or equipment manual for detailed operating information User Information Performance Verification Table 1 1 Required Test Equipment Item Performance Recommended Description Requirement Example oscilloscope TDS 820 calibration step Tektronix part generator number 067 1338 0X probe tip adapter 4 mm probe tip to SMA Tektronix part T or pickoff type number 013 0271 00 adapter SMA female female Tektronix part number 015 1012 00 50 Q termination SMA male Tektronix part number 015 1022 00 coaxial cable SMA male male Tektronix part number length 20 in 174 1427 00 Equipment Connections To prevent electrostatic discharge damage to the oscilloscope input wear a properly grounded wrist strap whenever you make an oscilloscope input connection Before beginning the performance verification proce dures connect the calibration step generator as follows refer to Figure 1 7 as necessary P6207 Instruction Manual 1 19 Performance Verification L Step 1 Connect the power supply provided with the calibration step generator to an appropriate power source O Step 2 Connect the power supply cable to the calibration step generator L Step 3 Using the male male SMA cable connect the calibration step generator TRIGGER INPUT to the oscilloscope
41. und contacts spring tip four post and edge tab described in Standard Accesso ries can help you reduce the effects of ground lead inductance on your measurements Input Linear Dynamic Range The internal amplifier used by the P6207 FET Probe to drive a 50 Q load has a limited range To keep the input linearity error less than 3 you must limit the signal input voltage to 4 V including any DC offset User Information Operating Information NOTE If you are using your probe with a TEKPROBE compatible oscilloscope use the DC offset adjustment to maintain the probe within its dynamic range The nominal offset adjustment of the P6207 FET Probe is 5 VDC Note that the probe can tolerate input voltages of 40 V without damage however the linearity error specification does not apply to input voltages exceed ing 4 V including any DC offset P6207 Instruction Manual 1 15 Operating Information 1 16 User Information Performance Verification Performance Verification provides procedures that you can use to verify the performance of your P6207 FET Probe The following performance characteristics are verified m system attenuation m system rise time m probe output offset zero and gain Performance requirements that are not verified are characteristics that are either extremely stable and unlikely to change or impractical to verify Please verify probe performance by using the proce dures provided in the orde
42. ves you the flexibility to make measurements in a variety of applications Marker rings Use the marker rings to help you keep track of individu al probes and signal sources when you have a compli cated test setup Use the marker rings whenever you want to identify a particular probe for any reason To make probe identification easy clip matching colored rings onto the probe cable and tip as shown Compensation Box The compensation box contains additional circuitry including elements of the TEKPROBE interface There are no internal adjustments for you to make To prevent damage from static discharge wear a properly grounded wrist strap when handling the probe 1 6 User Information Operating Information SMA Cable The SMA cable provides the signal path from the probe compensation box to the oscilloscope input Connect the SMA cable between the probe compensation box and oscilloscope before connecting the probe interface cable To prevent damage from static discharge wear a properly grounded wrist strap when connecting the probe to the oscilloscope The oscilloscope connectors for the TEKPROBE interface are shown in Figure 1 2 Connect the SMA cable to the channel input connector and the TEK PROBE interface connector to the PROBE POWER connector ANTISTATIC PROBE PROBE CONNECTION POWER 6 ee POWER 6 se MAX o 9 o Figure 1 2 The TEKPROBE SMA Probe Interface Connectors
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