Tektronix P6241 Manual de usuario

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P6241

4.0 GHz 10X Active Probe

ZZZ

Instruction Manual

www.tektronix.com

071-1188-04

owned by Tektronix or its subsidiaries or suppliers, and are protected by national

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 KlipChip 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 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 difﬁculty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE

PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED.

TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’

RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE

SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR

BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE

LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL

DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS

ADV

ANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

[W2 – 15AUG04]

P6241 4.0 GHz 10X Active Probe Instruction Manual i

Table of Contents

General Safety Summary v............................

Service Safety Summary vii.............................

Preface ix............................................

Manual Structure ix....................................

Product Description 1.................................

Options 1............................................

Features and Accessories 3.............................

Configuration 13......................................

Probe Offset 13........................................

Functional Check 17...................................

Deskew Fixture 20.....................................

Probe Calibration Errors 22..............................

Check Compatibility 22.................................

Check for Hardware Problems 23.........................

Operating Basics 25...................................

Handling the Probe 25..................................

Maximum Nondestructive Input Voltage 25.................

Input Linear Dynamic Range 26..........................

Electrical Effects of Adapters 26..........................

Ground Lead Length 27.................................

Electrical Effects of Ground Lead Length 28................

Helpful Hints 31......................................

Low-Inductance Grounding 31............................

SureToe Grounding 32..................................

Specifications 33......................................

Theory of Operation 41................................

Probe Head and Cable Assembly 42.......................

Compensation Box 42...................................

Offset Amplifier 42.....................................

Probe Identification EEPROM 43.........................

TEKPROBE Interface 43................................

VCC, +7 V Regulator 43................................

Performance Verification 45............................

Table of Contents

ii P6241 4.0 GHz 10X Active Probe Instruction Manual

Equipment Required 45.................................

Equipment Setup 46....................................

Output Zero 47........................................

DC Gain Accuracy 48...................................

Rise Time 50..........................................

Adjustments 55.......................................

Adjustment Locations 55................................

Offset Zero 56.........................................

Offset Range 57.......................................

Maintenance 59.......................................

Replacing TEKPROBE Interface Pins 59...................

Removing and Replacing the Compensation Box Covers 60....

Inspection and Cleaning 62..............................

Replacement Parts 62...................................

Preparation for Shipment 62..............................

Troubleshooting 63....................................

Replaceable Parts 67...................................

Parts Ordering Information 67............................

Using the Replaceable Parts List 68........................

Item Names 68........................................

Indentation System 68..................................

Abbreviations 68.......................................

List of Figures

Figure 1: Dynamic and offset limitations 15...............

Figure 2: P6241 functional check setup 17.................

Figure 3: Probe functional check connections 18...........

Figure 4: Deskew fixture connections

(two P6241 probes shown) 20.........................

Figure 5: Detail of deskew fixture connections 21...........

Figure 6: Typical effects of using probe tip adapter 27.......

Figure 7: Waveform distortion from ground lead length 29..

Table of Contents

P6241 4.0 GHz 10X Active Probe Instruction Manual iii

Figure 8: Low-inductance grounding 31...................

Figure 9: Using a SureToe adapter for grounding 32........

Figure 10: Typical input impedance and phase

versus frequency 35.................................

Figure 11: Typical bandwidth 36.........................

Figure 12: P6241 simplified schematic diagram 41..........

Figure 13: TEKPROBE interface 43.....................

Figure 14: Setup for output zero 47......................

Figure 15: Setup for DC gain accuracy 49.................

Figure 16: Test system rise time setup 50..................

Figure 17: Test system and probe rise time setup 52.........

Figure 18: P6241 adjustment locations 55.................

Figure 19: 1103 power supply offset voltage location 57......

Figure 20: P6241 offset range setup 58....................

Figure 21: Replacing TEKPROBE interface pins 59........

Figure 22: Removing the compensation box covers 60.......

Figure 23: Replacing the compensation box cover 61........

Figure 24: Compensation box test point locations 64........

Figure 25: P6241 replaceable parts 69....................

Figure 26: P6241 standard accessories 70.................

Figure 27: P6241 optional accessories 72..................

Table of Contents

iv P6241 4.0 GHz 10X Active Probe Instruction Manual

List of Tables

Table 1: P6241 features and standard accessories 3........

Table 2: Optional accessories 10.........................

Table 3: Instruments fully compatible with the

P6241 probe 22...................................

Table 4: Warranted electrical specifications 33............

Table 5: Typical electrical characteristics 33..............

Table 6: Physical characteristics 35......................

Table 7: Environmental characteristics 37................

Table 8: Equipment required for performance verification 45

Table 9: Troubleshooting guide 64.......................

P6241 4.0 GHz 10X Active Probe Instruction Manual v

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

measurement 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.

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