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Adjustments

54

P6330 3.5 GHz Differential Probe Instruction Manual

6.

Adjust

Offset Range

for a DMM reading equal to the value set in

the

Zero Offset

procedure (step 4 on page 50),

±

3 mV. Refer to

Figure 24 on page 49 for the location of the offset range
adjustment.

This completes the adjustments to the probe. Replace the compensa-
tion box cover and do a performance verification of the probe.

Replacing the Compensation Box Cover

To replace the cover, follow these steps:

1.

Align the TEKPROBE interface and the tab notches with the tabs
on the cover. Refer to Figure 27.

2.

Press the cover catches in so that the cover can be lowered.

3.

Slide the tab into the notch.

4.

Firmly press the pieces together until the cover catches snap into
place.

Tab

Figure 27: Replacing the compensation box cover

Summary of Contents for 071-0757-04

Page 1: ...071 0757 04 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 summ...

Page 2: ...d pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Tektronix Inc P O Box 500 Beaverton OR 97077 TEKTRONI...

Page 3: ...tions 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...

Page 4: ......

Page 5: ...Limits 10 Maximum Input Voltage 11 Common Mode Signal Range 11 Differential Mode Signal Range 11 Common Mode Rejection 11 Probing Techniques to Maximize CMRR 12 Electrical Effects of Accessories 13 I...

Page 6: ...libration Fixture 39 Using the Probe Calibration Fixture 39 Output Offset Voltage 41 DC Gain Accuracy 41 Rise Time 43 Adjustments 47 Equipment Required 47 Removing the Compensation Box Cover 48 Offset...

Page 7: ...dimensions 29 Figure 14 Simplified schematic diagram 33 Figure 15 TEKPROBE interface 35 Figure 16 Probe Calibration Fixture 39 Figure 17 Probe Calibration Fixture test points 40 Figure 18 Setup for t...

Page 8: ...Table of Contents iv P6330 3 5 GHz Differential Probe Instruction Manual...

Page 9: ...t 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...

Page 10: ...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...

Page 11: ...should perform service procedures Read this Service Safety Summary and the General Safety Summary before performing any service procedures Do Not Service Alone Do not perform internal service or adjus...

Page 12: ...www tektronix com Sales support 1 800 833 9200 select option 1 Service sup port 1 800 833 9200 select option 2 Technical support Email techsupport tektronix com 1 800 833 9200 select option 3 6 00 a m...

Page 13: ...of accessories for connecting to surface mount devices and other components The P6330 probe uses the TEKPROBE interface which provides power selects the correct display scaling and automatically sets...

Page 14: ...Probe Instruction Manual Options The following options are available when ordering the P6330 probe H Option D1 Calibration Data H Option C3 3 years Calibration Service H Option D3 3 years Calibration...

Page 15: ...probe head accept the standard and optional probe accessories some of which connect through the square pin adapter WARNING Skin penetration hazard To prevent injury install the probe tip cover when t...

Page 16: ...ontacts inside the adapter are rated for 50 75 insertion cycles with the probe tip Replace the adapter after exceeding these limits to avoid unreliable operation Tektronix part number 016 1885 00 pack...

Page 17: ...er connects between accessories fitted with 0 025 inch pins such as the SMT KlipChip and Micro KlipChip adapters You can use the X lead adapter with the adapters below to make connections between the...

Page 18: ...bration certificate A certificate of traceable calibration is provided with every instrument shipped Instruction Manual Provides instructions for operating the P6330 differential probe and procedures...

Page 19: ...nix part number 003 0675 01 Probe calibration fixture Use the probe calibration fixture to perform some of the calibration procedures The calibration fixture connects to signal sources used to test th...

Page 20: ...r 012 0076 00 IEEE1394 Adapter The IEEE1394 Adapter allows you to probe signals on the bus external to system enclosures without disturbing system operation The adapter maintains a balanced 55 signal...

Page 21: ...dense circuitry and must be handled carefully Rough or careless use will likely damage the probe To avoid damaging the probe tips minimize your lateral pressure on the tips Always probe as directly st...

Page 22: ...he P6330 differential probe To correct for this problem divide the measurement or scale factor by 5 Instruments without the TEKPROBE Interface On instruments that do not have the TEKPROBE interface yo...

Page 23: ...de specification is met For Specifications refer to page 25 Differential Mode Signal Range The differential mode signal range is the maximum voltage difference between the plus and minus inputs that t...

Page 24: ...pters However some probing tasks are made easier using accessories included with the probe The accessories shown in Figures 3 and 4 achieve a high CMRR by minimizing the distance between the probe hea...

Page 25: ...eases step response and aberrations and leads to increased ripples in frequency response These effects increase as the source impedance and the measured waveform risetimes decrease The recommended met...

Page 26: ...e signal sources The greater the source impedances and the higher the signal frequencies the more you must take these factors into account Input 0 1 pF 0 4 pF 0 4 pF 50 k 50 k Ground Input Figure 6 Ty...

Page 27: ...used to a ground reference point only In most applications the common mode impedance to ground is greater than the differential impedance Adding the probe ground lead does not improve the high frequen...

Page 28: ...Operating Basics 16 P6330 3 5 GHz Differential Probe Instruction Manual...

Page 29: ...8 Figure 8 Probe functional check connections 1 Connect the probe to the oscilloscope 2 Set the oscilloscope to display the probe channel 3 Connect the square pin adapter to the probe tip and connect...

Page 30: ...erform them 6 Disconnect the probe from the PROBE COMPENSATION connector and connect the two KlipChips together 7 With the probe offset set to 0 0 V the oscilloscope display should be at the ground re...

Page 31: ...g or disconnecting the probe ground reference lead Differential Measurements Devices designed to make differential measurements avoid the problems posed by single ended systems These devices include a...

Page 32: ...erential amplifier to reject the common mode signal is expressed as the Common Mode Rejection Ratio CMRR The CMRR is the differential mode gain ADM divided by the common mode gain ACM It is expressed...

Page 33: ...ce Effects on CMRR The lower the input impedance of the probe relative to the source impedance the lower the CMRR See Figure 12 on page 28 Significant differences in the source impedance driving the t...

Page 34: ...obe Output With the 1103 TEKPROBE power supply it is possible to extend the output of the probe to connect the probe to other types of measure ment instruments or to connect the probe to a signal sour...

Page 35: ...correction Minimizing the length of cable extension reduces the attenuation In critical applications which require high amplitude accuracy you should first characterize the response of the probe with...

Page 36: ...Reference 24 P6330 3 5 GHz Differential Probe Instruction Manual...

Page 37: ...anted Characteristics Warranted characteristics Table 3 describe guaranteed performance within tolerance limits or certain type tested requirements Warranted characteristics that have checks in the Pe...

Page 38: ...he probe with bare hands at nonoperating temperatures above 70_ C Allow sufficient time for the probe to cool before handling Typical Characteristics Typical characteristics Tables 4 and 5 describe ty...

Page 39: ...capacitance 0 45 pF at 100 MHz per side Input impedance See Figure 12 Noise referred to input 35 nV Hz DC Offset Scale Accuracy gain of offset signal path 2 0 DC Offset Drift 150 V C or less at output...

Page 40: ...from the 14 dB reference level For example 80 dB CM gain equals 66 dB CMRR Frequency 10 MHz 1 MHz 100 MHz 44 52 60 68 76 84 1 GHz Gain dB Figure 11 Typical common mode gain The graph in Figure 12 rep...

Page 41: ...mm 0 99 in pins on 2 54 mm 0 100 in centers Dimensions control box 82 mm 28 mm 23 mm 3 2 in 1 1 in 0 9 in Dimensions probe head 59 mm 7 7 mm 5 1 mm 2 3 in 0 3 in 0 2 in Dimensions output cable 1 3 m...

Page 42: ...istics Nominal characteristics Table 6 describe guaranteed traits but the traits do not have tolerance limits Table 6 Nominal electrical characteristics Input configuration Differential two inputs and...

Page 43: ...re for use only by qualified personnel To avoid injury do not perform any servicing other than that stated in the operating instructions unless you are qualified to do so Refer to all safety summaries...

Page 44: ......

Page 45: ...ng failures to either the probe or the host oscilloscope Refer to Figure 14 for a simplified schematic of the probe Offset Gain Offset Zero Offset Ampifier EEPROM Probe Tip Ampifier Signal Out Probe T...

Page 46: ...try H VCC 7 V linear regulator Offset Amplifier The offset amplifier is used to offset the DC component of the input signal so that it stays at the optimal point of the linear dynamic range of the pro...

Page 47: ...een the probe and the oscilloscope Contact pins provide power signal offset and data transfer for the probe identification EEPROM Figure 15 shows the TEKPROBE interface pin functions Refer to the serv...

Page 48: ...Theory of Operation 36 P6330 3 5 GHz Differential Probe Instruction Manual...

Page 49: ...list of the equipment required to verify the performance of your probe Table 7 Equipment required for performance verification Item description Performance requirement Recommended example High Speed S...

Page 50: ...o Female 015 1012 00 Adapters 2 SMA Female to BNC Male 015 0572 00 Adapter SMA Male jack 131 7128 00 Adapter BNC Female to Dual Banana 103 0090 00 Adapter Square pin adapter 016 1884 00 Adapter Y lead...

Page 51: ...onnect to the fixture and are located on the front and back of the fixture The fixture is designed to be used with a probe positioner such as a Tektronix PPM203B Figure 16 Probe Calibration Fixture Us...

Page 52: ...act the CM or DM test points depending on which test you are performing See Figure 17 Common mode Differential mode Figure 17 Probe Calibration Fixture test points 6 Verify that contact is made on bot...

Page 53: ...NC cable Square pin adapter Y lead adapter KlipChip adapters Figure 18 Setup for the output offset voltage test 2 Set the Var 0v button on the 1103 power supply to 0v light off 3 Verify that the outpu...

Page 54: ...ble Y lead adapter Black Red Digital multimeter Digital multimeter KlipChip adapters Square pin adapter Figure 19 DC Gain Accuracy setup 3 Record the output voltage as Vout1 4 Set the input voltage on...

Page 55: ...A cable 174 1427 00 BNC to SMA adapter 015 0572 00 Figure 20 Test system rise time setup 2 Adjust the oscilloscope vertical sensitivity to 50 mV div 3 Turn on the TDR pulse on the SD 24 or TDS8000 Ch...

Page 56: ...me is used to calculate the probe rise time tp in step 16 The following steps instruct you to assemble the test setup that includes the probe as shown in Figure 21 The system and probe rise time ts p...

Page 57: ...22 to verify that you have a valid connection with both pins pin not making contact Both pins in contact 20 Gain difference 500 ps div Figure 22 Verifying both probe pins are contacting the DM test p...

Page 58: ...st record Probe Model Serial Number Certificate Number Temperature RH Date of Calibration Technician Performance test Minimum Incoming Outgoing Maximum Output offset voltage 10 mV ________ ________ 10...

Page 59: ...nly if a check fails to meet its specifica tion To make adjustments to the probe the compensation box cover must be removed and the equipment allowed to warm up for 20 minutes Equipment Required In ad...

Page 60: ...lease tool pins into the compensation box cover catches and gently lift the cover off a small distance Refer to Figure 23 2 Hold the open edge apart and use the tool to open the other side of the comp...

Page 61: ...ocation of the adjustments and test points inside the compensation box Refer to Figure 24 when performing the adjustment procedures in this section Offset range Offset zero CMRR Blk CMRR Connector tes...

Page 62: ...e calibration constants at this time If the offset zero is adjusted perform a functional check of the offset range before closing the compensation box 1 Connect the probe tips together using the squar...

Page 63: ...ers Figure 25 Offset zero and DC CMRR setup 6 Set the input voltage on the DC source to 3 0 V 10 mV 7 Adjust the CMRR control in the probe for an output equal to the value measured in step 4 on page 5...

Page 64: ...alculate the CMRR as follows 20 log 0 2 ACM 14 Reverify that the offset is 0 V 3 0 mV repeat steps 1 through 3 If the offset voltage magnitude is greater than 3 0 mV or if the CMRR is less than 60 dB...

Page 65: ...as you perform these procedures 1 Connect the equipment as shown in Figure 26 2 Power on the 1103 power supply and turn on the offset 3 Refer to Figure 24 on page 49 for the location of the offset vol...

Page 66: ...to the probe Replace the compensa tion box cover and do a performance verification of the probe Replacing the Compensation Box Cover To replace the cover follow these steps 1 Align the TEKPROBE inter...

Page 67: ...tends out of the interface If any pin fails to move freely and fully extend it should be replaced To remove a TEKPROBE interface pin firmly grasp the pointed tip with pliers and pull the pin out of th...

Page 68: ...mly pull the interface collar off To replace the collar first note the pin configuration on the compensation box and their holes in the interface collar The group of three pins fit through the smaller...

Page 69: ...for a list of customer replacement parts Due to the sophisticated design of the P6330 there are no user replaceable parts within the probe Preparation for Shipment If the original packaging is unfit f...

Page 70: ...Maintenance 58 P6330 3 5 GHz Differential Probe Instruction Manual...

Page 71: ...ix instruments are sometimes made to accommo date improved components as they become available and to give you the benefit of the latest circuit improvements Therefore when ordering parts it is import...

Page 72: ...tem 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 Description Assembly and or Comp...

Page 73: ...Replaceable Parts P6330 3 5 GHz Differential Probe Instruction Manual 61 1 2 3 4 5 Figure 30 P6330 replaceable parts...

Page 74: ...Mfr code Mfr part no 30 1 010 0640 04 1 PROBE ASSEMBLY SERVICE REPLACEMENT SERIALIZED 80009 010 0640 04 2 205 0191 XX 1 SHELL ELEC CONN BNC ABS DOVE GRAY 80009 205 0191 XX 3 131 3627 02 1 CONTACT ELE...

Page 75: ...Replaceable Parts P6330 3 5 GHz Differential Probe Instruction Manual 63 1 2 3 4 5 6 7 8 9 10 Figure 31 P6330 standard accessories...

Page 76: ...6 3465 00 2 LEAD GROUND GROUND LEAD 196 3465 00 4 016 1785 00 1 ADAPTER DIFFERENTIAL PROBE PKG OF 4 80009 016 1785 00 5 016 1884 00 1 ACCESSORY KIT SQUARE PIN ADAPTER PKG OF 4 060D9 016 1884 00 6 016...

Page 77: ...Replaceable Parts P6330 3 5 GHz Differential Probe Instruction Manual 65 1 2 4 3 5 6 Figure 32 P6330 optional accessories...

Page 78: ...01 1 ADJUSTMENT TOOL PLASTIC BLACK TK2565 003 0675 01 2 003 1383 00 1 RELEASE TOOL 80009 003 1383 00 3 679 5027 00 1 CKT BD SUBASSY 1394 ADAPTER 80009 679 5027 00 4 067 0419 00 1 PROBE CALIBRATION FIX...

Page 79: ...9 UNITREK CORPORATION 3000 COLUMBIA HOUSE BLVD SUITE 120 VANCOUVER WA 98661 80009 TEKTRONIX INC 14150 SW KARL BRAUN DR PO BOX 500 BEAVERTON OR 97077 0001 TK0623 GENERAL TOOL SUPPLY CO 2705 NW NICOLAI...

Page 80: ...Replaceable Parts P6330 3 5 GHz Differential Probe Instruction Manual 68...

Page 81: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Tektronix P6330...

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