Pickering PXI 41-181 Manual de usuario

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2.3GHz ProGrammable SteP attenuator module 41-181

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USER MANUAL

2.3GHz PROGRAMMABLE STEP ATTENUATOR MODULE

(MODEL No. 41-181)

Issue E July 2012

www.pickeringtest.com

pickering

ISO 9002

Reg No. FM38792

NOTE: Provided for information only.

Use 41-180 for all new requirements.

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No part of this publication may be reproduced, transmitted, transcribed, translated or stored in any form, or

by any means without the written permission of Pickering Interfaces.

Technical details contained within this publication are subject to change without notice.

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TECHNICAL SUPPORT

For Technical Support please contact Pickering Interfaces either by phone, fax, the website or via e-mail.

WARRANTY

All products manufactured by Pickering Interfaces are warranted against defective materials and workmanship for a

period of two years, excluding PXI chassis, from the date of delivery to the original purchaser. Any product found to be

defective within this period will, at the discretion of Pickering Interfaces be repaired or replaced.

Products serviced and repaired outside of the warranty period are warranted for ninety days.

Extended warranty and service are available. Please contact Pickering Interfaces by phone, fax, the website or via

e-mail.

ENVIRONMENTAL POLICY

Pickering Interfaces operates under an environmental management system similar to ISO 14001.

Pickering Interfaces strives to full all relevant environmental laws and regulations and reduce wastes and releases

to the environment. Pickering Interfaces aims to design and operate products in a way that protects the environment

and the health and safety of its employees, customers and the public. Pickering Interfaces endeavours to develop

and manufacture products that can be produced, distributed, used and recycled, or disposed of, in a safe and

environmentally friendly manner.

Observe the Electrostatic Sensitive Device Caution detailed in Section 8.

Worldwide Technical Support and Product Information

http://www.pickeringtest.com

Pickering Interfaces Headquarters

Stephenson Road Clacton-on-Sea CO15 4NL United Kingdom

Tel: +44 (0)1255-687900

Fax: +44 (0)1255-475058

E-Mail: [email protected]

Pickering Interfaces GmbH

Johann-Karg-Straße 30

D-85540

Haar-Salmdorf

Germany

Tel: +49 89 125 953 160

Fax: +49 89 125 953 189

E-Mail: [email protected]

Pickering Interfaces AB

Karl Nordströmsväg 31

432 53

Varberg

Sweden

Tel: +46 340-69 06 69

Fax: +46 340-69 06 68

E-Mail: [email protected]

Pickering Interfaces Inc.

2900 Northwest Vine Street

Grants Pass

Oregon 97526

USA

Tel: +1 541 471 0700

Fax: +1 541 471 8828

E-Mail: [email protected]

Pickering Interfaces Inc.

(East Coast Regional Office)

12 Alfred Street Suite 300-3

Woburn Massachusetts 01801

USA

Tel: +1 781 897 1710

Fax: +1 781 897 1701

E-mail: [email protected]

Pickering Interfaces s.r.o.

Smetanova 525

Trinec

739 61

Czech Republic

Tel: +42 0558 339 168

Fax: +42 0558 340 888

E-mail: [email protected]

Pickering Interfaces SARL

6 Rue De La Mare Blanche

77186 Noisiel

Marne Le Vallee

France

Tel +33 1 60 53 55 50

Fax +33 1 60 53 55 99

email [email protected]

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Technical Support and Warranty....................................... iii

Contents (this page)........................................................... v

Section 1

Introduction......................................................................... 1.1

Section 2

Technical Specication...................................................... 2.1

Section 3

Installation........................................................................... 3.1

Section 4

Programming ...................................................................... 4.1

Section 5

Connector Pin Outs............................................................ 5.1

Section 6

Troubleshooting ................................................................. 6.1

Section 7

General Description ........................................................... 7.1

Section 8

Warnings and Cautions ..................................................... 8.1

CONTENTS

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Section 1 - introduction

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SECTION 1 - INTRODUCTION

GENERAL

The 41-181 Programmable 0 to 63 dB Attenuator Module which forms part of the System 40 PXI RF Instrumentation

range comprises either one or two independently programmable attenuators in a single width 3U PXI module. Each

attenuator comprises seven attenuator pads ranging in value from 1 dB to 16dB. A combination of attenuator pads

are mechanically switched-in to provide attenuation values from 0 to 63 dB in 1 dB steps.

The module is provided in the following versions:

•41-181-021 Single Attenuator, 63 dB range, 1dB Step, 0Mhz to 2.3Ghz 50 Ohm SMA Connector.

•41-181-022 Dual Attenuator, 63 dB range, 1dB Step, 0Mhz to 2.3Ghz 50 Ohm SMA Connector.

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Section 2 - SPeciFicAtion

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SECTION 2 - SPECIFICATION

GENERAL CHARACTERISTICS

Frequency range: DC to 2.3 GHz

Maximum Input Power: 1 Watt continuous

Input Impedance: 50 ohms, DC coupled

VSWR (SMA connector): Less than 1.5, Typically less than 1.3

Typical Crosstalk Versus Frequency With No Attenuation Set

ATTENUATION

The attenuator is made up 1, 2, 4, 8 and 16 (3 off) switched pads, attenuator set to 0 dB with no power applied.

Insertion Loss (0 dB set): Typically 3.6 dB at 2.3 GHz

Attenuation Range: 0 to 63 dB in 1 dB steps relative to 0 dB condition

Attenuation Accuracy (individual pads measured in 50 ohm system referenced to 0 dB condition):

Attenuator Pad DC to 1 GHz at 3 GHz

1 dB ±0.05 dB ±0.15 dB

2 dB ±0.05 dB ±0.1 dB

4 dB ±0.2 dB ±0.25 dB

8 dB ±0.15 dB ±0.3 dB

16 dB ±0.2 dB ±0.65 dB

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Section 2 - SPeciFicAtion

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Typical Insertion Loss Versus Frequency (0 dB Set)

Attenuation accuracy versus frequency, 8 dB set.

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