Keysight Technologies N7020A Manual de usuario

Keysight N7020A & N7024A

Power Rail Probes

User’s Guide

2 N7020A and N7024A Power Rail Probes User’s Guide

Notices

2018

No part of this manual may be reproduced in

any form or by any means (including elec-

tronic storage and retrieval or translation into

a foreign language) without prior agreement

and written consent from Keysight Technolo-

gies, Inc. as governed by United States and

international copyright laws.

Manual Part Number

N7020-97005

Edition

Sixth edition, August 2018

Published by:

Keysight Technologies

1400 Fountaingrove Parkway

Santa Rosa, CA, 95403

Warranty

The material contained in this document is

provided “as is,” and is subject to being

changed, without notice, in future editions.

Further, to the maximum extent permitted

by applicable law, Keysight disclaims all

warranties, either express or implied, with

regard to this manual and any information

contained herein, including but not limited

to the implied warranties of merchantability

and fitness for a particular purpose. Key-

sight shall not be liable for errors or for inci-

dental or consequential damages in

connection with the furnishing, use, or per-

formance of this document or of any infor-

mation contained herein. Should Keysight

and the user have a separate written agree-

ment with warranty terms covering the

material in this document that conflict with

these terms, the warranty terms in the sepa-

rate agreement shall control.

Technology Licenses

The hardware and/or software described in

this document are furnished under a license

and may be used or copied only in accor-

dance with the terms of such license.

U.S. Government Rights

The Software is "commercial computer soft-

ware," as defined by Federal Acquisition Reg-

ulation ("FAR") 2.101. Pursuant to FAR

12.212 and 27.405-3 and Department of

Defense FAR Supplement ("DFARS")

227.7202, the U.S. government acquires

commercial computer software under the

same terms by which the software is custom-

arily provided to the public. Accordingly,

Keysight provides the Software to U.S. gov-

ernment customers under its standard com-

mercial license, which is embodied in its End

User License Agreement (EULA), a copy of

which can be found at

http://www.keysight.com/find/sweula. The

license set forth in the EULA represents the

exclusive authority by which the U.S. govern-

ment may use, modify, distribute, or disclose

the Software. The EULA and the license set

forth therein, does not require or permit,

among other things, that Keysight: (1) Fur-

nish technical information related to com-

mercial computer software or commercial

computer software documentation that is not

customarily provided to the public; or (2)

Relinquish to, or otherwise provide, the gov-

ernment rights in excess of these rights cus-

tomarily provided to the public to use,

modify, reproduce, release, perform, display,

or disclose commercial computer software or

commercial computer software documenta-

tion. No additional government require-

ments beyond those set forth in the EULA

shall apply, except to the extent that those

terms, rights, or licenses are explicitly

required from all providers of commercial

computer software pursuant to the FAR and

the DFARS and are set forth specifically in

writing elsewhere in the EULA. Keysight shall

be under no obligation to update, revise or

otherwise modify the Software. With respect

to any technical data as defined by FAR

2.101, pursuant to FAR 12.211 and 27.404.2

and DFARS 227.7102, the U.S. government

acquires no greater than Limited Rights as

defined in FAR 27.401 or DFAR 227.7103-5

(c), as applicable in any technical data.

52.227-14 (June 1987) or DFAR

252.227-7015 (b)(2) (November 1995), as

applicable in any technical data.

Safety Notices

CAUTION

A CAUTION notice denotes a hazard.

It calls attention to an operating

procedure, practice, or the like that,

if not correctly performed or

adhered to, could result in damage

to the product or loss of important

data. Do not proceed beyond a

CAUTION notice until the indicated

conditions are fully understood and

met.

WARNING

A WARNING notice denotes a haz-

ard. It calls attention to an operat-

ing procedure, practice, or the like

that, if not correctly performed or

adhered to, could result in personal

injury or death. Do not proceed

beyond a WARNING notice until the

indicated conditions are fully

understood and met.

N7020A and N7024A Power Rail Probes User’s Guide 3

Contents

1 N7020A / N7024A Probes - Overview / 5

Introduction / 6

Probe Accessories / 9

Oscilloscope Compatibility / 16

2 General Information / 19

Inspecting the Probe / 20

Handling the Probe / 21

Cleaning the Probe / 22

Returning the Probe for Service / 23

Contacting Keysight Technologies / 24

3 Specifications and Characteristics / 25

N7020A Probe Specifications and Characteristics / 26

N7024A Probe Specifications and Characteristics / 30

4 Safety and Regulatory Information / 35

5 Using the Power Rail Probe / 39

Requirements for Optimum Probe Performance / 41

Connecting to the DUT / 44

Replacing N7023A Probe Browser Tips / 52

Avoiding Costly Repairs / 53

Common Types of Power Integrity Measurements / 55

6Calibrating/57

N7020A / N7024A Probe’s DC Attenuation/Offset Calibration Using N7022A

Main Cable / 58

4 N7020A and N7024A Power Rail Probes User’s Guide

Contents

N7020A / N7024A Probe’s DC Attenuation/Offset Calibration Using

N7023A Probe Browser / 59

7PerformancePlots/61

N7020A Performance Plots / 62

N7020A Input Impedance Equivalent Model / 66

N7024A Performance Plots / 68

N7024A Input Impedance Plots / 70

8 Performance Verification / 77

DC Input Resistance Performance Verification / 78

Bandwidth Performance Verification for N7024A Probe / 81

Index

Keysight N7020A and N7024A Power Rail Probes

User’s Guide

1 N7020A / N7024A Probes -

Overview

Introduction 6

Probe Accessories 9

Oscilloscope Compatibility 16

6 N7020A and N7024A Power Rail Probes User’s Guide

1N7020A / N7024A Probes - Overview

Introduction

In this guide, the following two probes in the power rail probing category are

described.

• N7020A 2 GHz Power Rail Probe

• N7024A 6 GHz Power Rail Probe

These probes are designed for power integrity measurements such as Periodic and

Random Disturbances (PARD), static and dynamic load response, and

programmable power-rail response.

These probes have an output connector with the Keysight AutoProbe 1 interface

that allows these probes to connect directly to a compatible Keysight oscilloscope

(see page 16). The oscilloscope’s AutoProbe interface provides the probe power,

probe offset, and auto configuration of probe type and attenuation setting on

connection.

A variety of accessories are shipped with these probes to suit various DUT

connection scenarios and to make the connection to DUT possible in the most

difficult to reach situations as well (see page 44).

These probes provide the following advantages:

• Low noise due to a low attenuation ratio and 50Ωoutput. See Figure 1 and

Figure 2 on page 8.

• A large probe offset range. The offset allows small signals (~1 mV), that exist on

top of a DC supply, to be centered on an oscilloscope screen for maximum

vertical sensitivity.

• Low DC loading due to a 50 kΩinput impedance at DC.

N7024A Probe

N7020A Probe

N7020A / N7024A Probes - Overview 1

N7020A and N7024A Power Rail Probes User’s Guide 7

• Large active signal range in addition to the offset range

NOTE

While the N7020A and N7024A probes have a number of features in common, the N7024A

probe is an extension to the capabilities and performance of the N7020A probe. When

compared to the N7020A probe, the N7024A probe provides enhanced features such as:

> higher bandwidth (upto 6 GHz)

> compatibility with high-end Keysight oscilloscopes (V-series and Z-series)

> improved usability and browsing capabilities

> unique s parameters stored in each N7024A probe for maximum accuracy

CAUTION

Before using these probes, refer to “Safety and Regulatory Information" on page 35.

Handle the probes with care and refer to the safety notices in this manual. Avoid any

mechanical shocks to these products to guarantee accurate performance and protection.

8 N7020A and N7024A Power Rail Probes User’s Guide

1N7020A / N7024A Probes - Overview

Figure 1 Example of Measured Mean Noise at 2 GHz BW: 1.04369 mVp-p

Figure 2 Example of Measured Mean Noise at 20 MHz BW: 443.74 mVp-p

N7020A / N7024A Probes - Overview 1

N7020A and N7024A Power Rail Probes User’s Guide 9

Probe Accessories

Standard Accessories

The N7020A and N7024A probes are shipped with the accessories shown in

Figure 3 and Figure 4 respectively. These standard accessories are described in

Table 1.

Figure 3 N7020A Probe with Standard Accessories

10 N7020A and N7024A Power Rail Probes User’s Guide

1N7020A / N7024A Probes - Overview

Figure 4 N7024A Probe with Standard Accessories

N7024A Probe

N7033A Probe

Browser

N7032A Probe

Browser

Dual Lead Adapter

N7021A Pigtail

Cables

N7022A Main

Cable

Wrench

N7023A Probe

Browser

Ground Lead

Micro SMD Clip

Rotating

Adapter

Ground

Spring

SMA Adapter

Glass Tube containing

Spring-loaded and

Rigid Probe Tips Color Coding

Rings

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