Tektronix Generic Precompenstation Primary User
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Generic Precompensation
ZZZ
Plug-in Application
Printable Help Document
*P077121202*
077-1212-02
Generic Precompensation
Plug-in Application
ZZZ
Printable Help Document
w.tek.com
ww
077-1212-02
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its
subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions.
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.
®
SourceXpress
is a registered trademark of Tektronix, Inc.
Microsoft, Windows, Windows XP Professional, Windows 7, and Windows 10 are registered trademarks
of Microsoft Corporation.
Supports Precompensation Plug-in application Version 1.4.x and above.
Help part number: 076–0393–02
PDF of Help system part number: 077–1212–02
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
ox 500
P. O . B
Beaverton, OR 97077
USA
For product information, s ales, service, and technical support:
In North America, call 1-800-833-9200.
ldwide, visit www.tek.com
Wor
to find contacts in your area.
Table of Contents
Introduction
Welcome............................................................................................................. 1
Documentation......................................... ................................ ............................. 2
Support information....... .................................. ................................ ....................... 2
Orientation
Elements of the display ............................................................................................ 3
Plug-in selection button........................... .................................. ............................... 3
Create coefficients button....................................... ................................ ................... 4
Reset Plug-in button......... ................................ ................................ ....................... 5
Help button ............... ................................ .................................. ......................... 5
Instrument Connection
Instrument connection....... .................................. ................................ ..................... 7
Table of Contents
Generic Precompensation Plug-in types
Generic Precompensation Plug-in coefficient types ........................................... ................. 9
RF coefficients
RF coefficients ...................... ................................ .................................. ......... 9
IF coefficients
IF coefficients ................................................................................................. 11
Direct IQ coefficients
Direct IQ coefficients......................................................................................... 12
IQ with internal modulator coefficients
IQ with internal modulator coefficients .................. .................................. ................ 13
IQ with external modulator coefficients
IQ with external modulator coefficients ................................ ................................ .... 15
Oscilloscope triggering
Scope Trigger options .................. ................................ ................................ ...... 16
Output Filepath
Output Filepath ............ .................................. ................................ ...................... 19
Apply the Coefficient file
Apply the Coefficient file......................................................................................... 21
Coefficient file structure
Coefficient file structure .......................................................................................... 23
Generic Precompensation Printable Help Document i
Table of Contents
Licensing
Licensing ........................................................................................................... 25
Error messages
Error codes ......................................................................................................... 2
Index
7
ii Generic Precompensation Printable Help Document
Introduction Welcom e
Welcome
The Generic Precompensation plug-in application is used to create correction coefficients that can be
applied to waveforms to obtain a flat frequency response and linear phase response.
The plug-in is designed to integrate and operate seamlessly as an enhancement to the SourceXpress
waveform creation software application and the AWG70000A and AWG5200 series arbitrary waveform
generators
NOTE. When using the Generic Precompensation Plug-in with SourceXpress, SourceXpress must be
connected to an Arbitrary Waveform Generator (AWG). You cannot use a virtual generator connection to
create coefficient files. Refer to the SourceXpress help for information about establishing a connection
to an AWG.
To create the correction coefficients, a known stimulus signal (golden signal) is generated and passed
through the entire system to the point it is connected to an oscilloscope or analyzer. The captured
waveform is then compared to the stimulus signal. From the compared data, the magnitude and the phase
characteristics of the system is obtained and is used to create a correction file.
.
This illustration shows the Generic Precompensation plug-in viewed from t he SourceXpress application.
Generic Precompensation Printable Help Document 1
Introduction Documentation
Documentation
In addition to this application Help system, the following documentation is available for the software.
All documentation is available on the Tektronix Web site (www.Tektronix.com/manuals
To read about Use these documents
Generic Precompensation plug-in operation and
user interface help
Generic Precompensation plug-in programmer
commands
SourceXpress operation and user interface help Access the SourceXpress application help from the Help menu for
SourceXpress programmer commands Access the SourceXpress programmer manual for the syntax of remote
Connected instrument operation and user
interface help
Access the plug-in application help from the plug-in Help menu for
information on all controls and elements on screen.
The plug-in help system is also available in PDF format located in the
program’s installation folder and also available on the Tektronix web site.
Access the p lug-in programmer m anual for the syntax of remote commands
specific to the plug-in.
This is available on the Tektronix web site.
information on all controls and elements on screen.
The SourceXpress help system is also available in PDF format, available
on the Tektronix web site.
commands.
This document is available in PDF format located in the program’s
installation folder and also available on the Tektronix web site.
For operation and interface help of a connected instrument, refer to the
instrument’s documentation.
This is available with the instrument or on the Tektronix web site
).
Connected instrument programmer commands For programming information of a connected instrument, refer to the
instrument’s documentation.
This is available with the instrument or on the Tektronix web site.
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Support information
Tektronix offers the following services in support of their products:
Technical Support. For application-related questions about a Tektronix product, contact us by
telephone or email ).
Service Support. For service-related questions about a Tektronix product, contact us by telephone
or email ).
Tektronix also offers extended warranty and calibration programs as options on many products. Contact
your local Tektronix distributor or sales office.
2 Generic Precompensation Printable Help Document
Orientation Elements of the display
Elements of the display
The main areas of the plug-in window are shown in the following figure.
Plug-
Generic Precompensation Printable Help Document 3
in selection button
utton selects specific types of correction coefficients. At this time, only Generic type
This b
precompensation coefficients (RF, IF, IQ) are available.
re enhancements to Precompensation will provide additional plug-in selections.
Futu
Orientation Create coefficients button
Create coefficients button
Select to create the coefficient file as defined.
The following conditions must be met to create a coefficient file:
The Generic Precompensation plug-in must be licensed for use with the application you are creating
the coefficient file (i.e. SourceXpress or an AWG70000A or AWG5200 series generator).
For example, if you connect SourceXpress (without the plug-in license) to an AWG70000A series
generator that is licensed to use the plug-in, you cannot use SourceXpress to create the coefficients.
Refer to the documentation for SourceXpress or the generators for details about obtaining and using
license files.
Coefficient files cannot be created without the proper instrument connections.
If using the Precompensation Plug-in with SourceXpress, SourceXpress must be connected to an
Arbitrary Waveform Generator (AWG). You cannot use a virtual generator to create coefficient files.
Refer to the SourceXpress help for information a bout establishing a connection to an AWG.
Upon completion of the coefficient file, a response plot is displayed in the Frequency Response display.
Close the window to complete the operation.
NOTE. If using a Real-time Signal Analyzer (RSA) as the analysis instrument, only Magnitude coefficients
are obtained.
NOTE. If using the Generic Precompensation plug-in from an AWG70000A series instrument, coefficients
can not be created i f Synchronization (Sync Hub) is enabled. Refer to the instrument’s help system for
information.
4 Generic Precompensation Printable Help Document
Orientation Reset Plug-in button
Reset Plug-in button
Returns the plug-in to the RF type and returns all settings to their default values.
Selecting Reset does not affect the Instrument Connection.
Help button
Help button: Provides links where you can obtain a dditional product help and documentation.
Item Descripti
User manual
About ...
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Opens the p
Provides
helpful when contacting Tektronix about your application.
on
lug-in help system.
you with information about your plug-in application. This information is
Generic Precompensation Printable Help Document 5
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