P7225 2.5GHz 10X Active Probe User Manual
Contents
1. 1531 D400HOIW 380Hd dlL YANS t 80845 60090 41 40 9xd rvi3 WIN 0 L0033uns H1dQV 20945 20445 60090 41 40 Dd TIN S3 LOOJIUNS ULdAY 20848 10845 60090 41 40 Dd OAS TIN 08 004 18 140 10845 1 91 S3lH0SS399V IVNOILdO ou uondiosep Spezi AD juoosq eAn129J3 ou ped ou ou 214 43 P7225 2 5 GHz 10X Active Probe User Manual Appendix C Replaceable Parts 02026 HO 3TIIANOSTIM 02026 3TIIANOSTIM 800 6 HO NOLU3 AV38 01226 aNv11HOd 28986 VM 02822 ON SdldvH 15056 VO VLNVS 19986 VM 1000 22026 HO NOLH3AV3 epoo diz ayeys LOL ALINS HLS6 MS 62622 3AIHQ H31N39 MS 00092 AVM NVMITIIIN MS 18181 15 IV109IN MN 9022 OLL 31S SAV 19121 SN 9 028 019 Od 3AIHQ 30VH5 001 9018 SAV HSTVM prez ASNOH VIANN 109 000 ATEWASSV ANY SS3NHVH NOISIO3Hd 00S Od 1879 MS 08191 09 9u38SQNVIH IN34 801931 5911518 NOISIA 998271 NOILVHOdHOO 89801 09 AlddNS 8 1001 WHANAD 609031 8911519 OSV 816 GIOWHIV NVAENV14 81 66 NOILVINWA 81HHO ANVdWOO ALMOSNAL 60090 1 60008 Jsinpejnueyy YAYNLOVANNVIN OL 3009 UAN X3QNI 55099 P7225 2 52. Option C5 5 years Calibration Service Option 05 5 years Calibration Data Report requires Option C5 Option R5 5 years Repair Service P7225 2 5 GHz 10X Active Probe User Manual 3 Product Description 4 P7225 2 5 GHz 10X Active Probe User Manual PY LSS Se Features and Accessories The P7225 is provided with several features and accessories designed to make probing and measurement a simpler task To familiarize yourself with these items and their uses refer to Table 1 WARNING To avoid injury use care when handling accessories with sharp tips Table 1 P7225 features and standard accessories Feature Accessory Ground socket Probe tip socket Stabilization notch Latch button P7225 2 5 GHz 10X Active Probe User Manual Description Probe head assembly The probe head is designed for ease of use and high performance The small size makes it easy to handle in tight areas The probe tip socket is sized to easily press onto 0 025 inch square pins for direct access The ground socket provides a short ground path for high fidelity ground connections The stabilization notch permits you to use adjacent pins to reduce stress on the probe and pins TekConnect Interface The TekConnect Interface provides a communication path between the probe and the host instrument Contact pins provide power signal offset and probe characteristic data transfer The probe snaps into the
3. P7225 features and standard accessories Cont Feature Accessory Three inch ground lead Description Three inch ground lead Use the three inch ground lead for general probing The socketed end of the lead may be connected to any of the probe tips and adapters or fitted onto 0 025 inch square pins To attach the ground lead press and rotate the lead pin connector into the ground socket on the probe head The lead may be removed by pulling the pin out by hand To maintain signal fidelity while probing use as short a ground path as possible Refer to page 21 for more grounding information Y lead adapter P7225 2 5 GHz 10X Active Probe User Manual Y lead adapter 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 square pins When selecting the grounding connection maintain as short a ground path as possible Refer to page 21 for more information Tektronix part number 196 3456 XX 1 set includes 3 three inch ground leads and 2 Y lead adapters 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 Features and Accessories Table 1 P7225 features and standard accessories Cont Feature Accessory Description Cu
4. GHz 10X Active Probe User Manual 44
5. XX SMA to probe tip adapter Use the adapter to connect the probe to SMA cables and for calibration and performance verification The adapter includes a 50 ohm SMA terminator Tektronix part number 015 0678 XX IEEE1394 Adapter The IEEE1394 Adapter ia allows you to probe signals on the bus external to system enclosures without disturbing system operation The adapter maintains a balanced 50 ohm signal path and can be used in both single ended and differential modes Tektronix part number 679 5027 XX PPM100 Probe Positioner The PPM100 is a general purpose bench top probe holder with flexible arm designed for hands free probing and fine positioning adjustments The heavy duty base can be replaced with the clamp for securing the probe arm in a variety of situations Use flexible retention rings to attach the probe to the probe holder Tektronix part number PPM100 P7225 2 5 GHz 10X Active Probe User Manual 13 Features and Accessories Table 2 P7225 optional accessories Cont Accessory Description Probe Calibration and Deskew Fixture This fixture provides an edge source to time align deskew and to optimize host instrument gain and offset accuracy at the probe tip Tektronix part number 067 0405 XX Deskew Fixture This fixture provides an edge source to time align deskew and to optimize host instrument gain and offset accuracy at the probe tip The probes are held in place allowing hand
6. accessories Accessory SureFoot adapter adapter Blue SureFoot adapter J Red SureFoot adapter Description SureFoot probe adapter The SureFoot adapter is an integral probe tip and miniature guide that enables fault free probing of fine pitch SMD packages Attach SureFoot adapters the same way as the push in probe tips Three models of SureFoot adapters are available for the probe and can be used with any of the socketed accessory leads SF501 The orange SureFoot adapter is compatible with 50 mil JEDEC packages such as SOIC PLCC CLCC and so on Tektronix part number SF501 pkg of 12 SF502 The blue SureFoot adapter is compatible with 0 25 mil JEDEC and EIAJ packages Tektronix part number SF502 pkg of 12 SF503 The red SureFoot adapter is compatible with 0 05 mm packages Tektronix part number SF503 pkg of 12 Micro KlipChip adapters Use the adapters to probe the leads on integrated circuits that are surface mounted Tektronix part number SMK4 pkg of 4 12 P7225 2 5 GHz 10X Active Probe User Manual Features and Accessories Table 2 P7225 optional accessories Cont Accessory Description TekConnect Interface calibration fixture The calibration fixture is required when a performance verification or adjustment is done on the probe It provides connectors and test points for internal probe measurements Tektronix part number 067 0422
7. actual probe gain DC Voltage Measurement Accuracy 2 of input 2 of offset 100 mV referred to input output offset 80 mV linearity error 30 P7225 2 5 GHz 10X Active Probe User Manual Appendix A Specifications Input Impedance 45 KQ 110 40 KQ 4 90 VIL 79 35 70 50 _ 80KQ a e E 5 3 KQ 1 o 5 20 210 Ei N 30 15KQ 50 10 KQ X pus 4 5 KQ _ pe 110 10 KHz 100 KHz 1 MHz 10 MHz 100 MHz 1 GHz 10 GHz Frequency Hz Magnitude Phase Figure 11 Typical input impedance and phase versus frequency P7225 2 5 GHz 10X Active Probe User Manual Phase degrees 31 32 Appendix A Specifications 17 20 23 5 S Vour en 26 Gain 20 Log 29 32 10 MHz 100 MHz 1 GHz 10 GHz Frequency Figure 12 Typical bandwidth P7225 2 5 GHz 10X Active Probe User Manual Appendix A Specifications 7 6mm 0 300 in 31 8 mm y gt 1 250 in K 2 mm Ry 2 250 76 0 300 n 1 7
8. for grounding 26 Figure 10 Using a push in probe tip as a test point 27 Figure 11 Typical input impedance and phase versus frequency oes Bet ote ors 31 Figure 12 Typical bandwidth 32 Figure 13 Probe head and compensation box dimensions 33 Figure 14 P7225 replaceable parts 39 Figure 15 P7225 standard accessories 40 Figure 16 P7225 optional accessories 42 P7225 2 5 GHz 10X Active Probe User Manual Table of Contents List of Tables Table 1 P7225 features and standard accessories 5 Table 2 P7225 optional accessories 12 Table 3 Warranted electrical specifications 29 Table 4 Typical electrical characteristics 29 Table 5 Physical characteristics 33 Table 6 Environmental characteristics 33 P7225 2 5 GHz 10X Active Probe User Manual iii Table of Contents iv P7225 2 5 GHz 10X Active Probe User Manual Ey General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it To avoid potential hazards use this product only as specified Only qualified personnel should perform service procedures To Avoid Fire or Personal Injury Connect and Disconnect Properly Connect the probe output to the measuremen
9. steps 1 Ground the input of the probe NOTE The probe must be terminated with low impedence 100 2 to correctly display offset voltage 2 Use the vertical position control to set a zero reference level on the host instrument display 3 Set the host instrument to 1 V div 4 Attach the probe to the circuit 5 Adjust the probe offset to bring the trace to the host instrument zero reference P7225 2 5 GHz 10X Active Probe User Manual 17 Configuration 6 Change the volts division setting to the desired range adjusting the offset to keep the trace on the zero reference level NOTE The P7225 has a 10 0 V offset range The input voltage linear operating range is 4 V See Figure 4 If cursors are used on a TekConnect Interface host instrument the zero reference will be at the probe offset voltage A Nonoperating range 30 V maximum nondestructive input voltage 14 0 V 10 0 V 10 0 V 4 0 V 0 V Maximum AC signal amplitude Maximum offset range 4 0 V 4 Y 10 0 V 10 0V 140 Nonoperating range 30 maximum nondestructive input voltage Figure 4 Dynamic and offset limitations 18 P7225 2 5 GHz 10X Active Probe User Manual Operating Basics Please follow these operating guidelines to get optimum performance from your P7225 probe Handling the Probe Exercise care when using and storing the P7225 The probe and cable are sus
10. 25 in 2 500 in 91 5mm 3 600 in Figure 13 Probe head and compensation box dimensions Table 5 Physical characteristics Net weight 1 41 kg 3 1 165 Cable length 1 3 m 50 in Table 6 Environmental characteristics Operating temperature 0 C to 40 C 32 F to 104 F Nonoperating temperature 55 C to 75 C 67 F to 167 F Humidity 0 to 90 RH at 30 C to 40 C 86 F to 104 F Packaged product vibration and shock The packaged product qualifies under the Distribution Cycle 1 Assurance Level for packaged products 0 to 20 Ibs Test 2 for Warehouse and Vehicle Stacking Compression is omitted P7225 2 5 GHz 10X Active Probe User Manual 33 Appendix A Specifications 34 P7225 2 5 GHz 10X Active Probe User Manual E Appendix B User Service This section explains the maintenance for the P7225 probe Inspection and Cleaning CAUTION To prevent damage to probe materials do not use chemicals that contain benzine benzene toluene xylene acetone or similar solvents Do not immerse the probe or use abrasive cleaners Dirt may be removed with a soft cloth dampened with a 75 isopropyl alcohol and water solution Calibration If you need to do a performance verification or make internal adjustments to your probe refer to the P7225 2 5 GHz Active Probe Service Manual The manual is a printable pdf file and is available on both the Tektronix webs
11. Active Probe User Manual ens Appendix A Specifications The probe and host instrument must first be allowed to warm up for 20 minutes before measurements are taken Specifications CAUTION To prevent damage to the probe or circuit under test do not apply voltages beyond the nondestructive input voltage range to the probe Table 3 Warranted electrical specifications Output Zero 10 mV or less at output of probe lt 140 ps DC Gain Accuracy probe only 0 1 2 excludes offset error Rise Time probe only Table 4 Typical electrical characteristics Bandwidth probe only 2 5 GHz See Figure 12 Linear Input Dynamic Range 4 0 V to 4 0 V Equivalent to 400 mV to 400 mV at the output of the probe Delay Time 5 3 ns 0 2 ns Offset Range 10 0 to 10 0 V System Noise 300 UVims or less at output of probe with probe tip grounded P7225 2 5 GHz 10X Active Probe User Manual 29 Appendix A Specifications Table 4 Typical electrical characteristics Cont Linearity 0 1 over a dynamic range of 3 75 V to 375 V 1 0 over a dynamic range of 4 0 V to 4 0 V Nondestructive Input Voltage Range 30 V to 30 V DC peak AC Input Resistance 40 KQ See Figure 11 for impedance vs frequency Input Capacitance lt 0 8 pF DC Offset Drift 150 uV C or less at output of probe 0 75 mV C or less displayed on screen with TekConnect Interface DC Offset Scale Accuracy 2 of 10x
12. P7225 2 5 GHz 10X Active Probe User Manual www tektronix com 071 1187 02 Tektronix 7 Copyright Tektronix All rights reserved Licensed software products are 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 supersedes that in all previously published material Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tektronix Inc TEKPROBE and SureFoot are registered trademarks of Tektronix Inc SureToe and TekConnect are trademarks 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 In North America call 1 800 833 9200 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 Tektronix for warranty work
13. ail Part END ATTACHING PARTS Parts of Detail Part Attaching parts for Parts of Detail Part END ATTACHING PARTS Attaching parts always appear at the same indentation as the item it mounts while the detail parts are indented to the right Indented items are part of and included with the next higher indentation Attaching parts must be purchased separately unless otherwise specified Abbreviations Abbreviations conform to American National Standards Institute ANSI standard Y1 1 P7225 2 5 GHz 10X Active Probe User Manual Appendix C Replaceable Parts 6481 910 801931 WVO4 M OILSV1d SDVHOLS ASVO 6 81 910 6 690 010 60008 31995 50144 8 0 gt 0127 9 S 2 LOV 134 AGOUd XX v690 010 ou yed uondiosep eueu Spezi AD juoosq eAn29J3 ou ped ou E ou 214 sued ejqeooejdai 422 4 90614 39 P7225 2 5 GHz 10X Active Probe User Manual Appendix C Replaceable Parts 8910889226 piepuels 62274 5 91614 P7225 2 5 GHz 10X Active Probe User Manual 40 Replaceable Parts Appendix C 281 120 888031 80044 5 XX 1811 120 gk 0809 7906 609031 04109149 418 150 7126 WE LSIHM dVH LS XX S17E 900 H 9203 8 66 O L X 9287 X 509 9 0115 14 XX v91 900 01 XX v9 0 90c 60008 1461531 D400HOIIW 380 8d IL 6 XX v9 0 90c 6 v
14. ceptible to damage caused by careless use Always handle the probe using the compensation box and probe head avoiding undue physical strain to the probe cable NOTE To reduce the likelihood of creating signal aberrations be careful not to dent kink pull or stretch the cable CAUTION To prevent damage to the probe do not drop the probe or subject it to physical shock Maximum Nondestructive Input Voltage CAUTION To avoid damage to the probe tip amplifier do not apply voltages above the maximum non destructive input voltage Refer to Specifications on page 29 for the maximum operating voltage and frequency derating information P7225 2 5 GHz 10X Active Probe User Manual 19 Operating Basics Input Linear Dynamic Range The probe head amplifier used by the P7225 has a limited linear operating range The usable dynamic range is 4 0 however to keep the input linearity error less than 0 146 you must limit the apparent signal input voltage to 3 75 V If you use the full signal input voltage of 4 0 V then the input linearity error increases to x 1 096 Use the DC offset adjustment to maintain the probe within the dynamic range The nominal offset adjustment range of the P7225 is 10 0 V NOTE The probe can tolerate input voltages of x30 V without damage however the linearity error specification does not apply to input voltages exceeding 14 0 V including any DC offset See Figure 4 o
15. d by the probe tip and ground lead can result in a resonant circuit this circuit may cause parasitic ringing within the bandwidth of your host instrument Refer to Figure 6 P7225 2 5 GHz 10X Active Probe User Manual 21 Operating Basics Test pulse without probe Square pins on test board no signal or ground length Probe with only short ground pogo pin in Y lead adapter Rise A1 1882ps Oursht Ft 714864 Riee R2 199 4ps 1 708 Rise A3 189 5ps 10 84 1869ps 21 11 4755 0020222 thi 100mY 2 1 25ns 20065 ET 5 0ps pt Chil 152m V Ref4 100mV 125ns Figure 6 Waveform distortion from ground lead length 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 7 on page 23 22 P7225 2 5 GHz 10X Active Probe User Manual Operating Basics L Probe C jn V source lt 0 8 pF L ground lead Figure 7 Ground lead equivalent circuit Ringing and rise time degradation can be masked if the frequency content of the signal degradation is beyond the bandwidth of the host instrument You can determine if ground lead effects may be a problem in your application if you know the self inductance L and capacitance C of your probe and ground lead Calculate the a
16. eheader pins Attach the socket by gently pressing it into the ground socket on the probe head Be sure to use the stabilization notch whenever possible to avoid slipping and damaging the probe or circuitry under test Tektronix part number 016 1773 10 pkg of 10 SureToe probe adapter 4 ea The SureToe adapter is a pointed probe tip useful for probing in dense circuitry Attach the SureToe adapters the same way as the push in probe tips Do not force the adapter Also be careful not to poke yourself with the sharp probe tip SureToe adapters can be used with any of the socketed accessory leads Tektronix part number ST501 pkg of 12 SMT KlipChip Use the SMT KlipChip test clips to access fragile dense circuitry You can connect the KlipChip test clips to a Y lead or three inch ground leads To connect press the lead socket into the KlipChip handle The KlipChip body turns freely 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 Tektronix part number 206 0364 XX 2 each Features and Accessories Table 1 P7225 features and standard accessories Cont Feature Accessory Description Cable marker bands Attach matching pairs of the marker bands onto the cable at the head and compensation box of each probe The marker bands enable quick verification of which probe is connec
17. ell 816 SH 100 HVA 3 18v9 dl LD YIAYYN 9161 910 8 JO 60090 10615 HAGHOSY JO 9 0 1013 8411 910 60090 01 40 5 H3 1dVQV LI 055300 1 910 9 01 6 1 910 60090 01 JO 314 0 Nid AND LIM 55300 01 02 1 910 g 01 2 771 910 60090 01 40 4 O9Od LIM AHOSSFIOV 01 2 771 910 t 1 8698 161 60008 01 40 35 vXOvd dlL 380ud 8699 181 8 00068148 60090 S JO 13S 138 QV31 FIAVZIWOLSNO 6896 961 9996 961 60090 055320 145 QV31 9996 961 1 91 53 055499 GUVGNVLS ou ped apoo uonduosap O juoosq ou ped ou E ou 214 4 P7225 2 5 GHz 10X Active Probe User Manual Appendix C Replaceable Parts Figure 16 P7225 optional accessories 42 P7225 2 5 GHz 10X Active Probe User Manual Appendix C Replaceable Parts 531835 000 581 49 1408 XX 9LEE 90 89686011 SNOILVOMddV 1405 9 6 690 8 XX 1008 64 9 60008 YALdVAV v 6 LASSVans DIO I 2008 6 9 1 1531 WHO 08 OLNI Q31VNIIWE L3ZIS 8161 18979 LOVdWOD VINS di L 3HOHd HIldvav 8 90 610 9 0 0 790 60008 531935 00024 01 OL 803 55 NOLLVHAITVO L XX ccv0 190 9 VMNS 81HHO 40 9
18. host instrument when fully engaged To remove grasp the compensa tion box depress the latch button and pull the probe out Features and Accessories Table 1 P7225 features and standard accessories Cont Feature Accessory Description Push in probe tip Use the push in probe tip for general purpose probing by hand The push in probe tip may also be used with the other socketed leads and adapters Tektronix part number 131 5638 11 1 set of 10 Installing the push in probe tip Attach the push in probe tip by aligning the tip into the probe tip socket and pushing the tip in until it is seated Either end of the tip may be used Push in probe tip 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 Low inductance ground pogo pin Use the low inductance ground pogo pin to substantially reduce ground lead inductance Because the pogo pin only touches the ground reference you can easily move the probe to different points on the circuit under test Pogo pin 27 To attach press the pogo pin into the probe head ground socket To maintain signal fidelity while probing use as short a ground path as possible Refer to page 21 for more grounding information Tektronix part number 016 1772 10 1 set of 10 6 P7225 2 5 GHz 10X Active Probe User Manual Features and Accessories Table 1
19. ite and the Optional Applications CD The Optional Applications CD is included with Tektronix oscillo scopes and signal analyzers featuring the TekConnect interface Replacement Parts Refer to the Replaceable Parts section for a list of customer replacement parts Due to the sophisticated design of the P7225 probe there are no user replaceable parts within the probe P7225 2 5 GHz 10X Active Probe User Manual 35 Appendix B User Service Preparation for Shipment If the original packaging is unfit for use or not available use the following packaging guidelines 1 Use a corrugated cardboard shipping carton having inside dimensions at least one inch greater than the probe dimensions The box must have a carton test strength of at least 200 pounds 90 72 kg 2 Put the probe into an antistatic bag or wrap to protect it from dampness 3 Place the probe into the box and stabilize it with light packing material 4 Seal the carton with shipping tape 36 P7225 2 5 GHz 10X Active Probe User Manual a Appendix C Replaceable Parts This section contains a list of replaceable parts for the P7225 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 instruments are sometimes made to accommo date improved components as they become available and to give yo
20. 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 increases the time or difficult
21. n page 18 Electrical Effects of Adapters 20 The probe tip adapters included with your probe help connect to different types of components While these adapters make connec tions easier be aware that the adapter you choose may affect the signal that you are measuring depending on a variety of factors including signal frequency source impedance and lead length Use the probe without adapters to optimize step and frequency response Using the probe tip adapters adds inductance and capacitance which increase step response and aberrations and leads to increased ripples in frequency response These effects increase as the source impedance increases and measured waveform risetimes decrease Figure 5 on page 21 illustrates the typical effects on a given signal using some of the adapters included with your probe P7225 2 5 GHz 10X Active Probe User Manual Operating Basics Test pulse without probe 2 5 1 7 Y lead adapter with 2 SMT KlipChips 202 7ps 3 i4OwshuRi 3 28 208 1ps 2 6 668 279 5ps 7 069 22 303 6ps ig 5048 L1 M 1 25ns 20055 ET 5 psipt A Chl 152m V 1 0rmN 1 25ns Figure 5 Typical effects of using a probe tip adapter Ground Lead Length When you are probing a circuit always use as short a ground lead as possible between the probe head and circuit ground The series inductance adde
22. oids adding unnecessary ground lead length and distortion SureFoot Grounding 26 If you cannot use the recommended low inductance grounding method you may ground the probe to the IC package under test using a SureFoot adapter Refer to Figure 9 Figure 9 Using a SureFoot adapter for grounding Use a SureFoot adapter at the end of a short ground lead to connect directly to the IC package ground This method is preferred over using an adjacent circuit ground because it is the shortest ground path possible P7225 2 5 GHz 10X Active Probe User Manual Helpful Hints Probe Tip Test Points You can solder the push in probe tip or a 0 025 inch square pin to a circuit to be used as a temporary test point See Figure 10 Solder the push in probe tip onto a lead or pin with a low power soldering iron Press the probe head onto the push in probe tip to make a measurement Pull the probe head off of the push in probe tip when you are done You can remove and reuse the push in probe tip by desoldering it from the circuit and soldering it into another circuit in the future Figure 10 Using a push in probe tip as a test point NOTE Do not use pieces of solid core copper wire 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 P7225 2 5 GHz 10X Active Probe User Manual 27 Helpful Hints 28 P7225 2 5 GHz 10X
23. on the host instrument 5 Press AUTOSET or adjust the host instrument to display a stable calibration waveform You may need to adjust the probe offset to display the waveform NOTE Now is a good time to perform a probe calibration routine from your instrument Refer to the online help of your host instrument for calibration routine procedures 6 Disconnect the probe tip from the host instrument and ground the probe tip Connect the KlipChip to the probe tip 7 Set the probe offset to 0 0 V to make the host instrument display at the ground reference 8 Adjust the V div to keep the waveform on the screen P7225 2 5 GHz 10X Active Probe User Manual En Configuration The P7225 provides the host instrument with the probe model number serial number and attenuation factor When connected to a host instrument with a TekConnect Interface display readouts are corrected for the probe attenuation factor the instrument input is set to 50 Q and the coupling is set to DC The probe offset control is controlled by the host instrument Probe Offset The probe offset is adjustable to permit operation within the linear range of the probe Using the offset to cancel DC signal components enables optimal probe performance See Figure 4 on page 18 for more information NOTE See your host instrument manual for specific instructions on its operation and offset control To set the probe offset follow these
24. pproximate 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 lower the inductance of your ground path until the resulting resonant frequency is well above the frequency of your measurements The low inductance ground pogo pin described in Features and Accessories starting on page 5 can help you reduce the effects of ground lead inductance on your measurements P7225 2 5 GHz 10X Active Probe User Manual 23 Operating Basics 24 P7225 2 5 GHz 10X Active Probe User Manual Helpful Hints Follow these helpful hints to make probing easier and noise free Low inductance Grounding Placing a ground plane on top of the IC package being probed can minimize ground lead length and inductance See Figure 8 Figure 8 Low inductance grounding Attach a small piece of copper clad wire on top of the IC package and connect it to the IC package ground connection Use the low inductance ground pogo pin or the customizable ground lead to keep the ground lead length as short as possible P7225 2 5 GHz 10X Active Probe User Manual 25 Helpful Hints This method is very useful when making many measurements on the same package Using a ground plane on the IC package makes probing the IC package easier and av
25. r Dynamic Range 20 Electrical Effects of Adapters 20 Ground Lead Length 21 Ground Lead Inductance 22 Helpful Hints 022er 25 Low inductance Grounding 25 SureFoot Grounding 26 Probe Tip Test 27 Appendix A Specifications 29 Specifications 29 Appendix User Service 35 Inspection and Cleaning 35 Calibration o e Ree ka 35 Replacement Parts 35 Preparation for 5 36 Appendix Replaceable Parts 37 P7225 2 5 GHz 10X Active Probe User Manual i Table of Contents List of Figures Figure 1 P7225 Probe featuring the TekConnect Interface 1 Figure 2 Connecting and disconnecting the probe 2 Figure 3 Probe functional check connections 15 Figure 4 Dynamic and offset limitations 18 Figure 5 Typical effects of using a probe tip adapter 21 Figure 6 Waveform distortion from ground lead length 22 Figure 7 Ground lead equivalent circuit 23 Figure 8 Low inductance grounding 25 Figure 9 Using a SureFoot adapter
26. read the marking CAUTION indicates a hazard to property including the product Symbols on the Product These symbols may appear on the product CAUTION Refer to Manual P7225 2 5 GHz 10X Active Probe User Manual Preface This is the User Manual for the P7225 probe This manual provides operating information specifications and a replaceable parts list Related Manuals If you need to do a performance verification or make internal adjustments to your probe refer to the P7225 2 5 GHz Active Probe Service Manual The manual is a printable pdf file and is available on both the Tektronix website and the Optional Applications CD The Optional Applications CD is included with Tektronix instru ments featuring the TekConnect interface P7225 2 5 GHz 10X Active Probe User Manual vii Preface viii P7225 2 5 GHz 10X Active Probe User Manual EA Product Description The Tektronix P7225 is a 2 5 GHz 10X active probe The P7225 has a lt 0 8 pF input capacitance and a high input resistance 40 KQ to minimize circuit loading over the specified bandwidth The small profile and low mass head of the P7225 make probing dense circuitry by hand fast and easy The accessory tips and adapters included enable the P7225 to be used on a wide variety of circuit architectures Figure 1 P7225 Probe featuring the TekConnect Interface TekConnect Interface The P7225 is powered through a TekConnect Interface between the probe compen
27. s free operation without requiring a probe arm Tektronix part number 067 0484 XX 14 Calibration software and instructions Use the Optional Applications Software CD that is shipped with host instruments featuring the TekConnect interface Alternatively you can download the software from the Tektronix website or order the CD using the part number below Tektronix part number 063 3376 XX P7225 2 5 GHz 10X Active Probe User Manual Functional Check A functional check may be performed using the PROBE COM PENSATION connections on the front panel of the host instrument See Figure 3 NOTE If you are not familiar with the operation of the host instrument please refer to the user manual for the host instrument Figure 3 illustrates the probe compensation connection for TDS6000 and TDS7000 instruments Your instrument may differ from Figure 3 Please refer to your host instrument for the exact location of the probe compensation connection EN Figure 3 Probe functional check connections 1 Connect the probe to a channel on the TekConnect host instrument 2 Set the host instrument to display the probe channel P7225 2 5 GHz 10X Active Probe User Manual 15 Functional Check 16 3 Using a ground lead and SMT KlipChip connect the probe ground to the instrument ground on the host instrument 4 Using a standard tip hold the probe to the center conductor of the PROBE COMPENSATION output
28. sation box and the host instrument The TekConnect Interface provides a communication path through contact pins on the host instrument Power signal offset and probe characteristic data transfer through the interface P7225 2 5 GHz 10X Active Probe User Manual 1 Product Description When the probe is connected the host instrument reads EEPROM information from the probe identifying the device and allowing the appropriate power supplies to be powered on The preamp inputs on the host instrument are electrostatic discharge protected by remaining grounded until a valid TekConnect device is detected Installation The TekConnect Interface features a spring loaded latch that provides audible and tactile confirmation that a reliable connection has been made to the host instrument Slide the probe into the TekConnect receptacle on the host instrument The probe snaps into the host instrument when fully engaged See Figure 2 To release the probe from the host instrument grasp the compensa tion box depress the latch button and pull out the probe Figure 2 Connecting and disconnecting the probe 2 P7225 2 5 GHz 10X Active Probe User Manual Product Description Options The following options are available when ordering the P7225 probe m Option D1 Calibration Data Report Option C3 3 years Calibration Service m Option D3 3 years Calibration Data Report requires Option C3 Option R3 3 years Repair Service
29. stomizable ground lead You can bend or Customizable shorten this ground lead wire ground lead NOTE To ease insertion into the ground socket of the probe cut the tip of this ground lead wire at a 30 to 60 degree angle To maintain signal fidelity while probing use as short a ground path as possible Refer to page 21 for more grounding information Tektronix part number 196 3482 pkg of 5 Adapter spring Use the adapter spring for low profile probing of 0 025 inch square pins The adapter spring allows the probe to lie ata right angle flat against a circuit board This enables probing in vertical circuits such as computer or communications backplanes or in tight areas such as between circuit cards The adapter can be used directly with the probe head or attached to a Y lead adapter or ground lead adapter The adapter is attached by pushing the tip into the probe tip socket until it is seated The adapter spring can be easily removed by hand Tektronix part number 016 1774 XX pkg of 10 8 P7225 2 5 GHz 10X Active Probe User Manual Features and Accessories Table 1 P7225 features and standard accessories Cont Feature Accessory Square socket SureToe adapter N KlipChip P7225 2 5 GHz 10X Active Probe User Manual Description Square pin socket The square pin socket is ideal for use with signal ground pairs on 0 100 inch squar
30. t instrument before connecting the probe to the circuit under test Disconnect the probe input and the probe ground from the circuit under test before disconnecting the probe from the measure ment instrument Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product Connect the ground lead of the probe to earth ground only Do Not Operate Without Covers Do not operate this product with covers or panels removed Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel Do Not Operate in Wet Damp Conditions Do Not Operate in an Explosive Atmosphere Keep Product Surfaces Clean and Dry P7225 2 5 GHz 10X Active Probe User Manual General Safety Summary vi Safety Terms and Symbols Terms in This Manual These terms may appear in this manual WARNING Warning statements identify conditions or practices that could result in injury or loss of life 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
31. ted to which instrument channel Tektronix part number 016 1315 XX pkg of 10 Antistatic wrist strap When using the probe always work at an antistatic work station and wear the antistatic wrist strap Tektronix part number 006 3415 XX Plastic accessory box Use the plastic box to store the probe accessories when not in use Tektronix part number 006 7164 XX Instrument case The instrument case protects the probe from harsh environments Tektronix part number 016 1879 XX User Manual Provides specifications and instructions for operating the probe and a list of accessories and adapters Tektronix part number 071 1187 XX 10 P7225 2 5 GHz 10X Active Probe User Manual Features and Accessories Table 1 P7225 features and standard accessories Cont Feature Accessory Description Accessory reorder sheet Use the accessory reorder sheet as a quick guide for ordering accessories for your probe The sheet provides photos and part numbers for identifying your accessories Tektronix part number 001 1258 m Calibration certificate A certificate of traceable Certificate calibration is provided with every instrument of Calibration shipped P7225 2 5 GHz 10X Active Probe User Manual 11 Features and Accessories Table 2 lists the optional accessories you can order for your P7225 probe Table 2 P7225 optional
32. u the benefit of the latest circuit improvements Therefore when ordering parts it is important to include the following information in your order Part number m Instrument type or model number Instrument serial number m Instrument 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 change in the part number P7225 2 5 GHz 10X Active Probe User Manual 37 Appendix C Replaceable Parts Using the Replaceable Parts List 38 The tabular information in the Replaceable Parts List is arranged for quick retrieval Understanding the structure and features of the list will help you find 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 Indentation System This parts list is indented to show the relationship between items The following example is of the indentation system used in the Description column 1 2 3 4 5 Name amp Description Assembly and or Component Attaching parts for Assembly and or Component END ATTACHING PARTS Detail Part of Assembly and or Component Attaching parts for Det
33. y 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 LY La Table of Contents General Safety Summary Preface e ates ing vii Related Manuals vii Product Description 1 TekConnect Interface 1 Installation 2 52 ce aaah exe SWE La 2 NIE 3 Features and 5 Functional Check 15 Configuration ne m rhe n 17 Probe Offset ross c Y Xe E a 17 Operating Basics 25 rra ee 19 Handling the Probe 19 Maximum Nondestructive Input Voltage 19 Input Linea
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