Teledyne Lecroy AP034 Manuale utente

Electronic Component Distributor. Source::Teledyne LeCroy

P.N:AP034-DA10 Desc:DIV BY 10 ATTENUATOR PLUG ON A

Web:http://www.hotenda.cn E-mail:[email protected] Phone:(+86) 075583794354

Operator’s

Manual

AP034 Active

Differential Probe

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Electronic Component Distributor. Source::Teledyne LeCroy

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AP034 Active Differential Probe

Operator’s Manual

May 2013

3 / 60

Electronic Component Distributor. Source::Teledyne LeCroy

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Unauthorized duplication of Teledyne LeCroy documentation materials other than for internal sales

and distribution purposes is strictly prohibited. However, clients are encouraged to distribute and

duplicate Teledyne LeCroy documentation for their own internal educational purposes.

WaveSurfer, WaveRunner, and Teledyne LeCroy are registered trademarks of Teledyne LeCroy, Inc.

Windows is a registered trademark of Microsoft Corporation. Other product or brand names are

trademarks or requested trademarks of their respective holders. Information in this publication

supersedes all earlier versions. Specifications are subject to change without notice.

Warranty

Teledyne LeCroy warrants this oscilloscope accessory for normal use and operation within

specification for a period of one year from the date of shipment. Spare parts, replacement parts and

repairs are warranted for 90 days.

In exercising its warranty, Teledyne LeCroy, at its option, will either repair or replace any assembly

returned within its warranty period to the Customer Service Department or an authorized service

center. However, this will be done only if the product is determined by Teledyne LeCroy’s

examination to be defective due to workmanship or materials, and the defect is not caused by

misuse, neglect, accident, abnormal conditions of operation, or damage resulting from attempted

repair or modifications by a non-authorized service facility.

The customer will be responsible for the transportation and insurance charges for the return of

products to the service facility. Teledyne LeCroy will return all products under warranty with

transportation charges prepaid.

This warranty replaces all other warranties, expressed or implied, including but not limited to any

implied warranty of merchantability, fitness or adequacy for any particular purposes or use.

Teledyne LeCroy shall not be liable for any special, incidental, or consequential damages, whether in

contract or otherwise.

922261-00 Rev A

May 2013

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Operator’s Manual

922261-00 Rev A i

Table of Contents

Safety Instructions............................................................................................... 1

Symbols ..................................................................................................................1

Precautions.............................................................................................................1

Operating Environment..........................................................................................2

Overview ............................................................................................................ 3

Description .............................................................................................................3

Applications............................................................................................................3

Standard Accessories .............................................................................................4

Optional Accessories ..............................................................................................4

Oscilloscope Software Compatibility......................................................................4

Specifications ...................................................................................................... 5

Operation ........................................................................................................... 8

Connecting the Probe to the Test Instrument .......................................................8

Connecting the Probe to the Test Circuit...............................................................8

Probe Input Loading .............................................................................................10

Grounding the Probe............................................................................................10

Selecting the Proper Range..................................................................................11

Operation with Teledyne LeCroy Oscilloscopes...................................................12

Using AP034 with the APPPS Power Supply.........................................................12

Adding Offset........................................................................................................14

Autobalance .........................................................................................................15

Designing Test Fixtures for the AP034 Probe.......................................................15

Maintenance..................................................................................................... 16

Cleaning................................................................................................................16

Calibration Interval...............................................................................................16

Service Strategy....................................................................................................16

Troubleshooting ................................................................................................ 17

Returning a Probe ............................................................................................. 19

Replacement Parts ............................................................................................ 20

5 / 60

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AP034 Active Differential Probe

ii 922261-00 Rev A

Matching Procedure for ÷10 Plugs ......................................................................22

Equipment Required.............................................................................................22

Procedure .............................................................................................................23

Performance Verification ...................................................................................25

Test Equipment Required.....................................................................................25

Preliminary Procedure..........................................................................................27

Procedure .............................................................................................................27

Adjustment Procedure .......................................................................................34

Introduction..........................................................................................................34

Test Equipment Required.....................................................................................35

Preliminary Procedure..........................................................................................37

Procedure .............................................................................................................38

Reference Information .......................................................................................47

Differential Mode and Common Mode................................................................47

Differential Mode Range and Common Mode Range ..........................................47

Common Mode Rejection Ratio ...........................................................................48

Certifications ........................................................................................................49

Contact Teledyne LeCroy....................................................................................52

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Operator’s Manual

922261-00 Rev A 1

Safety Instructions

This section contains instructions that must be observed to keep this oscilloscope accessory

operating in a correct and safe condition. You are required to follow generally accepted safety

procedures in addition to the precautions specified in this section. The overall safety of any system

incorporating this accessory is the responsibility of the assembler of the system.

Symbols

These symbols may appear on the probe body or in this manual to alert you to important safety

considerations.

HIGH VOLTAGE, risk of electric shock.

CAUTION of Potential damage to probe or instrument it is connected to, or

WARNING of potential bodily injury. Attend to the accompanying

information to protect against personal injury or damage. Do not proceed

until conditions are fully understood and met.

ELECTROSTATIC DISCHARGE (ESD) HAZARD. The probe is susceptible to

damage if anti-static measures are not taken.

DOUBLE INSULATION

PROTECTIVE (EARTH) TERMINAL

Precautions

To avoid personal injury, or damage to the probe or test instrument, comply with the following

safety precautions.

Use product only as specified.

Connect and disconnect properly. Connect probe to the measurement instrument before

connecting the test leads to a circuit/signal being tested.

Use only accessories compatible with the probe. Use only accessories that are rated for the

application. Ensure connections between probe input leads and probe accessories are secure

before connecting them to a voltage source.

7 / 60

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AP034 Active Differential Probe

2 922261-00 Rev A

Do not overload. To avoid electric shock, do not apply any potential that exceeds the maximum

rating of the probe and/or the probe accessory, whichever is less. Observe all terminal ratings of

the instrument before connecting the probe.

Be careful not to damage the insulation surface when making measurements.

Use only within operational environment listed. Do not use in wet or explosive atmospheres.

Keep product surfaces clean and dry. Use indoors only.

Handle with care. Probe accessory tips are sharp. They can puncture skin or cause other bodily

injury if not handled properly.

Keep fingers behind the finger guard of the probe accessories.

Do not operate with suspected failures. Before each use, inspect the probe and accessories for any

damage such as tears or other defects in the probe body, cable jacket, accessories, etc. If any part

is damaged, cease operation immediately and sequester the probe from inadvertent use.

Operating Environment

Only use the product within this operating environment:

Temperature: 0° to 50° C

Humidity: Maximum relative humidity 90 % for temperatures up to 31° C decreasing linearly to

50% relative humidity at 40° C

Altitude: Up to 10,000 ft (3,048 m)

8 / 60

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Operator’s Manual

922261-00 Rev A 3

Overview

Description

The AP034 is a wide band differential active probe. The probe features low noise, low input

capacitance, high common mode rejection, and FET-buffered inputs in the probe head. User

selectable attenuation and offset give the probe flexibility to measure a large range of signal

amplitudes. Plug-on attenuator and AC coupling accessories further extend the application range.

Interconnect accessories included allow connection to surface mount and through-hole

components with minimal signal degradation. The input receptacles in the probe head are

compatible with standard 0.025 in. (0.635 mm) square pins. This provides a convenient low cost

method of creating device characterization test fixtures.

The probe is powered directly from a Teledyne LeCroy oscilloscope through the ProBus® interface.

The ProBus interface also allows local control of the probe through the oscilloscope user interface

and remote control through the interface buses, (GPIB, RS-232). The optional ADPPS power supply

allows the AP034 to be used with other instruments such as spectrum analyzers, network

analyzers, and oscilloscopes without ProBus interface.

Applications

The AP034 is ideal for acquiring high speed differential signals such as those found in disk drive

read channels, differential LAN, video, etc. It can also be used with spectrum analyzers to acquire

signals in some RF systems (for example, balanced IF mixers in hand held cellular telephones). The

high impedance characteristics of both inputs allow the probe to be used as a FET probe to make

single-ended measurements in digital systems without introducing a ground loop, as a conventional

FET probe would.

9 / 60

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AP034 Active Differential Probe

4 922261-00 Rev A

Standard Accessories

Hard Case

÷10 Plug-on Attenuator

÷20 Plug-on Attenuator

Plug-on AC Coupler

Probe Connection Accessory Kit:

Flex Lead Set (1)

Mini Clip, 0.8 mm (3)

Mini Clip, 0.5 mm (2)

Ground Lead (1)

Offset Pins, Round (4)

Square Pin Header Strip (1)

Manual, AP034 Active Differential Probe Operator’s Manual

Optional Accessories

ADPPS Power Supply

Oscilloscope Software Compatibility

For full control functionality of the probe, Teledyne LeCroy LC series oscilloscopes must have

software version 8.1.0 or higher loaded; all X-Stream oscilloscopes are compatible. The software

version installed in a Teledyne LeCroy oscilloscope can be verified by pressing the SHOW STATUS

button on the front panel (where available), then selecting the System menu choice. The probe can

be used with earlier versions of software; however, probe offset can only be controlled through the

buttons on the probe body. Also, the scale factor will be displayed incorrectly in some modes.

For information on upgrading the software in your oscilloscope, see

teledynelecroy.com/support/softwaredownload, or contact your local Teledyne LeCroy

representative.

10 / 60

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