Tektronix AWG70001B, AWG70002B, AWG70001A, AWG70002A User manual

Download

AWG70000 Series

ZZZ

Arbitrary Waveform Generators

Printable Help Document

*P077144600*

077-1446-01

AWG70000 Series Arbitrary Waveform Generators

ZZZ

Printable Help D ocument

w.tek.com

077-1446-01

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.

Microsoft, Windows are registered trademarks of Microsoft Corporation.

MATLAB is a registered trademark of The Mathworks, Inc.

Supports Product Software Version 7.x and above.

Help part number: 076–0424–00

PDF of Help system part number: 077–1446–00

Contacting Tektronix

Tektronix, Inc. 14150 SW Karl Braun Drive P. O . B o x 5 0 0

rton, OR 97077

Beave USA

For product information, sales, service, and technical support:

In North America, call 1-800-833-9200. Worldwide, visit www.tek.com to ﬁnd contacts in your area.

Table of Contents

Introduction

Introduction ......................................................................................................... 1

Product software .................................................................................................... 2

Documentation........... .................................. ................................ ......................... 2

Support information..... .................................. ................................ ......................... 3

Analysis and connectivity support ........................... .................................. ................... 4

WorkingwiththeAWG

AWG mode window

AWG mode general overview ......... ................................ ................................ ....... 5

AWG workspace tabs.......................................................................................... 6

Run state control .............................................................................................. 16

Screen interface features via touchscreen and mouse..................................................... 16

Toolbar ............. .................................. ................................ .......................... 20

Waveform list

Working with the waveform list..................................... ................................ ........ 22

Adding a waveform......................... ................................ ................................ .. 24

Saving a waveform ..................... ................................ ................................ ...... 29

Apply corrections............................................................................................. 30

Assign a waveform to a channel ............................................................................ 30

Modify waveform............................................................................................. 32

Modify markers . ................................ ................................ .............................. 36

Waveform properties ... ................................ ................................ ...................... 39

Applying waveform corrections

Applying Sin(x)/x corr

Applying correction ﬁle................................................................................. 41

Apply S-Parameters

Apply S-Parameters...................................................................................... 43

S-Parameter ﬁle descriptions....................................................................... 46

Aggressor signals ................................................................................... 48

Sequence list

Sequence list .................................................................................................. 48

Adding a sequence............................................................................................ 49

Saving a sequence ............................................................................................ 51

Assigning tracks to a channel................................................................................ 51

Edit a sequence................................................................................................ 54

Sequence properties ...................................... ................................ .................... 55

General setup

Table of Contents

ection ......... .................................. ................................ 41

AWG70000 Series Arbitrary Waveform Generators Printable Help Document i

Table of Contents

General setup overview ...................................... ................................ ................ 56

Enable dynamic loading.......................................... ................................ ............ 56

Enable all channels on play.. ................................ ................................ ................ 57

Apply recommended settings on assignment .................................. .. .. . . . . . . . . . . . . . . . . . . . . . . . . 57

Channel setup

Channel setup introduction .................................................................................. 57

Enable outputs / relay state .................................. ................................ ................ 58

Channel output path .......................................................................................... 59

Amplitude ..................................................................................................... 62

Markers ........................................................................................................ 64

Resolution (bits) .............................................................................................. 65

Couple channel settings (AWG70002) ..................................................................... 65

Channel color.... ................................ .................................. ............................ 67

Filter and Range (Option AC only) ......................................................................... 68

Output Options

Option AC Advanced settings

Clock setup

Clock introduction ............................................................................................ 72

Sample Rate ................................................................................................... 73

Clock and Reference Sources ............................................................................... 73

Clock and sync outputs......................... ................................ .............................. 77

Trigger setup

Trigger control .................................. .................................. ............................ 77

Trigger input settings .. . . . . . . . . . . . . . . . . . . . . . . . . . .............................................................. 79

Trigger timi

Skew setup

Adjust skew ................................................................................................... 84

Aux Out setup

Aux Out setup ......................... ................................ .................................. ...... 89

Timer

Timer setup .. .................................. ................................ ................................ 90

Sync (Synchronization hub)

Using synchronization........................ .................................. .............................. 91

Sync hub connections ............ ................................ .................................. .......... 92

Enable and conﬁgure synchronization...................................................................... 95

Deskew calibration

Direct ................ .................................. ................................ .................... 60

AC ......................................................................................................... 60

DC Ampliﬁed............................................................................................. 61

Output Options........................................................................................... 68

AC Advanced amplitude adjustment (Option AC)......... .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

ng ................................................................................................. 82

Deskew calibration................................... .................................. .................. 98

ii AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Table of Contents

Calibration messages

Calibration recommended messages................................................................. 101

Streaming ID

Streaming ID ................................................................................................ 101

Protocols

Protocol description.................................................................................... 102

Conﬁgure status acknowledgements........... ................................ ...................... 103

Conﬁgure status messages ............................................................................ 103

Sequencer control messages .......................................................................... 105

Status messages .......... ................................ ................................ .............. 106

Reset..................................................................................................... 108

Sequence Editor

Sequence tab overview....................... .................................. ............................ 108

Sequences - creating and editing

Editing tools ............ ................................ .................................. .............. 109

Sequence create and edit toolbar ............. .................................. ...................... 111

Copy and paste guidelines .................. ................................ .......................... 115

Sequence settings

Sequence settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .................. 115

Forcing jumps

Forcing jumps introduction ... ................................ ................................ ........ 116

Force Jump To... button ............................... ................................ ................ 117

Force jump here........................................................................................ 119

Forcing a jump (with Synchronization Hub)........................................................ 119

Jump timing

Jump timing ............................................................................................ 120

Pattern jump

Creating a Pattern jump ............................................................................... 120

Jump priority

Jump executi

Flags

Sequence ﬂags.......................................................................................... 123

Subsequence editing

Subsequence editing ............................... .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Sequencer batch compiler

Sequencer batch compiler........................... ................................ .................. 126

Capture and Playback

Capture/Playback introduction ............................................................................ 133

Captured Signal List

Adding (importing) IQ data ﬁles ..................... ................................ ................ 134

Removing Signals...................................................................................... 136

Editing signals........................ ................................ .................................. 136

on order .................................................................................. 122

AWG70000 Series Arbitrary Waveform Generators Printable Help Document iii

Table of Contents

Adding signals from ﬁles

Adding signals from waveform list

Capturing signals from instruments

Compiling I/Q signals

Waveform plug-ins

Waveform plug-ins introduction .......................................................................... 147

Basic waveform

Equation editor

Table editor

Precompensation plug-in

Precompensation plug-in................................................................................... 187

Waveform requirements

Waveform speciﬁcations and notes ....................................................................... 188

File formats (creating)

File formats (creating)...................................... ................................ ................ 188

Sequence ﬁle format

Adding signals from ﬁles ....... .................................. ................................ .... 138

Adding signals from waveform list .................................................................. 140

Capturing signals from instruments.. .................................. .............................. 141

Connecting to an oscilloscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .............. 142

Connecting to a spectrum analyzer............................................ .................. 144

Compiling I/Q signals ....................... .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

Basic waveform ........................................................................................ 148

Equation editor overview ........... ................................ ................................ .. 151

Limitations.............. .................................. ................................ .............. 153

Tips on using the equation editor... .................................. ................................ 153

Basic keywords

Basic keywords.................................................................................... 155

Waveform functions

Waveform functions ...................... .................................. ...................... 156

Correlation . ................................ ................................ ........................ 162

Code conversion................................................................................... 164

Differentiation... .................................. ................................ ................ 168

Integration.......................................................................................... 170

Convolution........................................................................................ 171

Math functions

Math functions..................................................................................... 172

Math operato

Math operators............................... ................................ ...................... 173

Equation examples

Equation examples ................................................................................ 174

Table editor . .................................. ................................ .......................... 183

iv AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Table of Contents

Sequence ﬁle format (.seq).......................................... ................................ .. 189

Waveform ﬁle format

Waveform ﬁle f

Matlab waveform ﬁle format

MATLAB waveform ﬁle format.................... .................................. ................ 196

MATLAB waveform ﬁle example ..................... ................................ .............. 199

MATLAB IQ ﬁle example ............................................................................ 200

ormat (.wfmx).................... ................................ .................... 191

Controls a

nd connectors

Front-panel controls and connectors

Front-panel controls .. .................................. ................................ .................... 203

Front-panel connectors..................................................................................... 204

Rear panel connectors

Rear-panel connectors........................ .................................. ............................ 206

Working with Functions

Functions home window overview ............................................................................ 209

Diagnostics

Diagnostics ... .................................. ................................ ................................ .. 211

nostics with synchronization.............................................................................. 213

Diag

Calibration

Calibration........................................................................................................ 215

Enhancements and plug-ins

hancements for your instrument ............................................................................ 217

Installanoptionkey

How to install an option key............................................................................... 219

Licensing

Licensing overview.............................................................................................. 221

How to purchase a license .................. ................................ ................................ .... 221

How to install a license ......................................................................................... 223

How to return a license ......................................................................................... 224

Index

AWG70000 Series Arbitrary Waveform Generators Printable Help Document v

Table of Contents

vi AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Introduction Introduction

Introduction

Your Arbitrary Waveform Generator (AWG) combines world-class signal ﬁdelity with ultra high-speed mixed signal simulation and a graphical user interface. The easy-to-use interface is built on the Microsoft Windows plat such as networked instruments.

AWG and Functions mode selection

The generator has two modes of operation, the Arbitrary Waveform Generator (AWG) mode and the Functions mode. Access to either mode of operation is from the Home tabs of your instrument by selecting either the AWG or Functions button.

form and is fully compatible with a wide range of PC hardware and software accessories,

AWG displays the arbitrary waveform generator Home screen with access to all AWG controls, playing any waveshape from a ﬁle.

Functions displays the Home screen with controls to generate basic waveshapes, such as sine waves, square waves, and triangle waves.

The AWG and Functions modes work independently from each other, but they both use the Analog Output connectors to play out their waveforms.

Controls

eral methods of controlling the instrument are provided.

Sev

Capacitive touchscreen interface.

Use the touchscreen to control all operations of the instrument. Or use in conjunction with a mouse, keyboard, and front-panel controls. The front-panel Touchscreen button enables or disables the

ouchscreen. The capacitive touchscreen is designed to operate with direct skin contact or use of a

t capacitive type stylus.

Keyboard and mouse

Front-panel controls

Remote control via the programmable interface

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 1

Introduction Product software

External display

Enhanced viewing of the AWG display is easily accomplished by attaching an external monitor to the VGA connector provided on the rear of the instrument.

By default, the VGA output is set to duplicate the AWG’s display, but you can use the Windows display controls to change how the instrument uses an external display.

Product software

The instrument includes the following software and related documents:

System software

The system software is a specially conﬁgured version of Microsoft Windows, which is preinstalled and enables you to install other compatible applications. For instructions on how to restore Microsoft Windows, refer to the Installation and Safety manual that is shipped with your instrument. Do not attempt to substitute any version of Windows that is not speciﬁcally provided by Tektronix for use with your instrument.

Product software

The product software is the instrument application and runs on Microsoft Windows. It provides the user interface (UI) and all other instrument control functions.

Release notes

Thereleaseno product documentation.

Documentation

The following table lists the primary documentation available for this product.

All listed documents are available on the Tektronix website (http://www.tek.com/manual/down

To read about Use these documents

Installation and Safety Read the Installation and Safety manual for general information about

Operation and user interface help Access the application help from the Help menu for information on all

tes c ontain information on updates and known issues that are not included in other

loads

how to prepare your instrument for use and basic operating instructions. This manual is provided with the instrument.

AWG70000A: Tektronix part number 071-3110-xx.

AWG70000B: Tektronix part number 071-3597-xx.

controls and on-screen elements. The application help is part of the product software.

A P DF of the help system is available, Tektronix part number 077-1446-xx.

2 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Introduction Support information

To read about Use these documents

Programming commands

Speciﬁcations and performance veriﬁcation procedures

xxx

Access the programmer manual for the syntax of remote control commands.

Tektronix part number 077-1452-xx.

This technical reference document provides the complete instrument speciﬁcations. Procedures are provided to verify the instrument is operating to

AWG70000A: Tektronix part number 077-0780-xx.

AWG70000B: Tektronix part number 077-1453-xx.

the warranted speciﬁcations.

Support in

Tektron ix

Technical Support. For application-related questions about a Tektronix product, see Contacting

Tekt roni

Service Support. For service-related questions about a Tektronix product, s ee Contacting Tektronix.

Tektronix also offers e xtended warranty and calibration programs as options on many products. Contact your local Tektronix distributor or sales ofﬁce.

formation

offers the following services in support of their products:

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 3

Introduction Analysis and connectivity support

Analysis and connectivity support

Tektronix Windows-based arbitrary waveform generators support industry-standard software tools, applications and protocols. The integrated Windows desktop of these models enables popular commercial programs or c

The instrument includes tools that you can install to support data import or export for use with data-analysis tools. The f

TekV ISA

TekVISA is a library of industry-standard compliant software components, organized according to the standard VISA model established by the VXIplug&play Systems Alliance. Use TekVISA in software to write i and your instrument.

ustom-written applications to run on the instrument.

ollowing tools are supported:

nteroperable instrument drivers to handle communicating between software applications

TekV ISA connectivity will be impaired or disabled.

VXI-11

The VXI 11.2 LAN Server provides software connectivity between your instrument and remote PCs over an you must install another copy of TekVISA to make use of its client-side component.

IVI Dr

IVI drivers conform to speciﬁcations produced by the IVI Foundation. IVI drivers provide a standard inte

Tektronix IVI-COM driver supports easy waveform transfer from third party software, such as MAT

must be the only VISA type software installed. If other VISA software is installed,

.2 LAN Server

Ethernet LAN. This tool is a client-side component built-in with TekVISA on each remote PC;

ivers

rface to different classes of instruments, including oscilloscopes and spectrum analyzers.

LAB.

4 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG AWG mode general overview

AWG mode general overview

Selecting the AWG mode button displays the controls for operating the arbitrary waveform generator.

Toolbar (see page 20): contains tools to access help, restore the interface layout, and work with

setups, open and save ﬁles.

Workspace tabs (see page 6): contain tabs to change the workspace view (which includes the

graphical waveform display area).

Home tab contains the waveform plot area and various controls for quick access.

Setup tab c

Waveform Plug-ins tab contains the selections for optional waveform creation applications.

Abasicwa

Sequence Editor tab contains the sequence editor to create and edit sequences. (Sequencing

option i

Sequence Editor tab contains the sequence editor to create and edit sequences. (Option SEQ

(Seque

Capture/Playback tab contains the controls to import baseband I/Q data ﬁles (captured from an ins for playout. You can also import ﬁles created with other tools such as MATLAB.

ities tab contains system, preferences settings, and instrument information.

Util

Precompensation tab contains the settings to create correction ﬁles to be used with a

eform ﬁle. The Precompensation plug-in must be installed to display this tab. To use the

wav plug-in, it must be licensed.

y/Stop button (icon)

Pla

the same as the front-panel Play/Stop button.

G/Functions buttons: switches the instrument between the arbitrary waveform generator (AWG)

mode and the basic waveshape generator (Functions) mode. The workspace tabs change in conjunction with the selected instrument modes.

ontains the settings to control the channel outputs, clocks, and triggers.

veform creation application is included as a standard plug-in.

s required to display this tab.)

ncing) is required to display this tab.)

trument such as a spectrum analyzer or oscilloscope) and compile them into a waveform

(see page 16): starts and stops the playout of a waveform. This function is

Waveform List (see page 22) and Sequence List (see page 48): contains the waveforms and

sequences available for use.

Status area: displays user messages to indicate possible problems or status.

All outputs off button: provides you with an easy way to quickly disconnect all analog, marker, and

ﬂag outputs. (The output connectors are electrically ﬂoating.)

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 5

Working with the AWG AWG workspace tabs

AWG workspace tabs

The AWG workspace panel is the main working area for setting up and controlling waveform playout.

s at the top of the screen display different views and settings.

Tab

Home tab (with waveforms) (see page 7)

Displays waveform, cursors, markers

Provides buttons for waveform output control

Provides quick access to triggering

6 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG AWG workspace tabs

Home tab with waveforms

Home tab (with sequence) (see page 8)

Displays the sequence track assigned to the channel

Provides buttons for waveform output control

ides quick access to force a j ump to another location in the sequence

Prov

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 7

Working with the AWG AWG workspace tabs

Home tab with sequence

Setup tab (see page 9)

Adjust

Adjust Clock settings

Adjust Trigger settings

Adjust relative timing of output signals

Channel settings

8 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG AWG workspace tabs

Setup tab

The Streaming tab is only available on the AWG70000B series.

Waveform plug-ins tab (see page 10)

Standard waveform plug-in applications are located here, which includes:

Basic Waveform editor

ion Editor

Equat

Table Editor

. The standard waveform plug-ins are documented in this help system. Optional waveform

NOTE

plug-ins have their own unique help systems.

ional waveform plug-in applications are added here.

Opt

NOTE. Optional waveform plug-ins have their own unique help systems are not documented in this help system. Use the help button within the Waveform Plug-ins tab to access the Optional waveform plug-in’s help system.

Create different types of waveforms based on selected waveform plug-in

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 9

Working with the AWG AWG workspace tabs

Waveform Plug-ins tab

Sequence Editor tab (see page 11)

encing option required)

(Sequ

Create sequences

Edit existing sequences

Enable Pattern Jump and specify the pattern jump table

10 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG AWG workspace tabs

Sequence editor tab

Capture/Playback tab (see page 11)

Import baseband IQ waveforms and up-convert imported waveforms to RF wave forms.

Acquire the acquired waveforms to RF waveforms.

live baseband IQ waveforms from an oscilloscope or spectrum analyzer and up-convert

Capture/Playback

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 11

Working with the AWG AWG workspace tabs

Utilities tab (see page 13)

12 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG AWG workspace tabs

Utilities

AWG70000A series

AWG70000B series

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 13

Working with the AWG AWG workspace tabs

Diag & Cal button: Displays the dialog screen to show the current state of the diagnostics and calibration. The instrument incorporates a temperature sensor that continuously monitors the instrument’s its previous calibration temperature, a status message appears requesting that you to perform a self-calibration. You can run the calibration routine at any time if your application requires optimum performance. See Calibration See Diagnostics

NOTE. Diagnostics & Calibration is disabled when S ynchronization is Enabled and the instrument is aslave(no

System button: System provides information about the instrument’s GPIB address and Security controls

The GPIB Address setting lets you set the instrument’s identity when using a GPIB converter for the prog details about the programmable interface.

Securi controls are disabled except for the power button. You can also disable the USB host ports located on the front- and rear-panels.

internal temperature. If the internal temperature changes more than 5 °C from

(see page 215) for more information about self-calibration.

(see page 211) for more information about performing diagnostic routines.

t the master) in the synchronized system.

rammable interface. Refer to the AWG70000 Series Programmers manual for complete

ty controls allow you to lock the instrument’s display screen. When locked, all front-panel

You can also choose to disable the ability of the external SourceXpress application to connect and control the instrument. SourceXpress has the ability to connect to, and control, the instrument directly from it's interface.

Preferences button: Preferences provides access to (brightness controls, error m essage controls, and text size).

Brightness Controls lets you adjust the intensity levels of the display screen and the front-panel LEDs. (The status LEDs for Marker are not adjustable.)

Choose to hide the pop-up error messages, forcing the errors to only show in the Status bar at the bottom of the screen.

Choose to reduce the size of the text and e lements of the user interface.

Help & Support button: Help & Support provides links to where you can obtain additional product help and documentation.

About my AWG button: About my AWG provides you with detailed information about your instrument, such as installed options, licenses, and the product’s software version. This information is helpful when contacting Tektronix about your instrument. Use the Copy Instrument Info button to copy and paste the instrument information into another application such as an email program.

The Install License(Install Options for the AWG70000A series) button is used to install a product upgrade after your initial purchase. The Install License and Return License buttons are used to manage optional plug-in application licensing. See Enhancements for your instrument

(see page 217).

Precompensation tab (see page 15)

14 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG AWG workspace tabs

Precompensation

The Precompensation tab allows you to create correction ﬁles to be used with a waveform ﬁle.

NOTE. The Precompensation tab only appears if the Precompensation plug-in is installed. To use the

n, it must be licensed. Refer to Licensing

plug-i

The Precompensation tab has its own user help (and is not described here). Press the help button on

ecompensation tab to access its user manual.

the Pr

(see page 221).

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 15

Working with the AWG Run state control

Run state control

You start and stop the waveform playout using the Play button. For a waveform to be output through the Analog Output connector, the Channel output must be enabled.

The condition of the outputs (output level or disconnected) when waveform playout has been stopped or is waiting for a trigger event, is deﬁned in the Output Options

Run state status indicators

(see page 68) dialog box.

The play bu

tton in the graphical interface changes appearance to indicate the waveform playout status.

Below are the various indicators.

Table 1:

Not light

Green wi

Yellow with clock symbol – the instrument is busy and playout is temporarily inhibited.

Red – A

xxx

ed – stopped (or idle) with no waveforms being played.

th sinewave – currently playing a waveform.

th T symbol – waiting for a trigger event to begin waveform playout.

n error is preventing the waveform playout.

The front-panel Play button also indicates the playout status with various colors. See Front-panel controls

(see page 203) for a description of its status indicators.

Screen interface features via touchscreen and mouse

The graphical user interface (GUI) is designed with some features that are only accessible via the touchscreen or right and left mouse clicks.

16 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Screen interface features via touchscreen and mouse

Left mouse clic settings

Pull down list

Numerical settings

control

kon

Touch (or left m

Selections with a triangle incorporate a pull-down list. Touch (or left mouse click) on the triangle to display the list.

A setting t (or right mouse click) the setting.

The s ettings menu allows you to quickly set the value to its default, minimum, or maximum values. Cutting, c setting the value to the nearest valid value.

Some settings allow you to change the units used for the setting. For instance, amplitude can be set in Vpp

ouse click) on any control o r setting selects or activates that control.

hat requires a numerical value has an additional menu accessed by touching and holding

opying, and pasting values is allowed. Pasting an invalid value results with the instrument

or dBm. Phase adjustments can be set in degrees or time.

Drag and drop

Use the touchscreen (or left mouse) to drag a waveform or a sequence (from the waveform list or

ence list) onto the waveform display area. Existing waveforms or sequences are replaced.

sequ If the previous waveform or sequence was currently playing, the new waveform or sequence starts playing immediately.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 17

Working with the AWG Screen interface features via touchscreen and mouse

Zooming

Use the touchs you want to expand.

Zoom In: Drag the zoom box from left to right to zoom in on that section of the waveform.

The boxed por

Zoom Out: Dra

the graph.

You can also use the

creen (or left mouse click) to drag a zooming box over the portion of a waveform

tion is centered in the graph.

g the zoom box from right to left zoom out. The boxed portion is centered in

icon to quickly return the waveform to its full display.

When zoomed in, you can pan through the waveform using the scroll bar below the waveform.

18 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Screen interface features via touchscreen and mouse

Waveform menu The waveform g

Touch and hold the touchscreen (or right mouse click) anywhere in the waveform area to display the waveform menu.

Show cursors toggles the measurement cursor display on or off (default is off). You can drag the cursors i cursor display control affects all channels.

Show Analog toggles the waveform display on or off (there is no default setting). If the waveform display is off, it remains off until it is turned back on. The analog waveform display control is i

Show Marker default. See the Resolution (bits) display control is independent for each channel.

Y Axis toggles the vertical graph axis between Volts and Normalized (default is Volts). The Y Axis contr

X Axis togg Axis control affects all channels.

Grid display (default is off). The grid display control affects all channels.

ndependent for each channel.

ol affects all channels.

raphical area contains a menu for various actions.

nto position or enter their position directly in the waveform display area. The

s lets you select which markers you want to display or hide. Markers are off by

(see page 65) setting to enable markers. The markers

les the horizontal axis between Seconds and Samples (default is Samples). The X

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 19

Working with the AWG Toolbar

Window panel resizing

Undocking and docking t

abs

The various window panels can be adjusted in size where-ever two panels are divided. Touch and hold the to or decrease the panel size.

Any tab ca completely separate it from the main GUI. Touch and hold the touchscreen (or left mouse click) to grab a tab and slide it to a new area. The docking icon displays that you can use to choose how you want t

uchscreen (or right mouse click) to grab the 3 dot indicator and slide to increase

n be undocked from the GUI. This allows you to reposition a tab to a new location or

o dock (reposition) the tab.

e Reset Window Layout button

Use th settings.

xxx

(in the Toolbar) to return the display to the factory

Toolbar

The toolbar (see page 22) provides access to various s etup actions.

NOTE. The AWG mode and Functions mode utilize the same Toolbar. Any action taken by the tools

ttons affects both modes. For example, restoring the default setup affects both the Functions mode

bu and AWG mode.

20 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Toolbar

Table 2:

Open File allow

A windows Open dialog box opens to the most recent location accessed. Use this window to navigate to saved ﬁles. In the Open dialog box, you can set the window to display all supported ﬁle types or re

The action taken depends on the ﬁle type opened.

■ Setup ﬁles: Opening a saved setup ﬁle returns the instrument to the settings saved with the

setup ﬁle. Waveforms and/or sequences saved with the setup ﬁle are also restored, removing

all existing waveforms and sequences.

■ Waveform ﬁles: Opening a waveform ﬁle from the toolbar allows you to select one waveform

ﬁle at a time to load into the Waveform List. (Matlab ﬁles that contain more than one waveform

will have all waveforms loaded into the Waveform List. See Adding a waveform

for more information.

■ Sequence ﬁles: Opening a sequence ﬁle from the toolbar allows you to select one sequence

ﬁle at a time to load into the Sequence List. If the sequence ﬁle contains subsequences, these

are also p laced in the Sequence List. All waveforms used in the sequence are loaded into the

Waveform list. See Adding a sequence

A windows Open dialog box opens to most recent location accessed. Use this window to navigate to your ﬁles.

The factory location is C:\Program Files\Tektronix\AWG70000\Samples.

For more advanced options to add waveforms or sequences, use the Open icons located within the Waveform List and Sequence List panels.

Save Setup saves the current settings as a setup ﬁle, allowing you to easily return the instrument to a known setup. A windows Save As dialog box opens to the most recent location accessed. Use this window to navigate to where you want to save the setup ﬁle.

In the Save As window, you can choose to save the setup ﬁle (which includes all waveforms and sequences) or save the setup ﬁle without the waveforms or sequences.

Choosing to save the setup ﬁle with waveforms and sequences also saves the waveforms listed in the Capture/Playback signal list.

s you to open any of the supported ﬁle types.

strict the window to display a certain type of ﬁle.

(see page 24)

(see page 49) for more information.

The factory location is C:\Program Files\Tektronix\AWG70000\Samples.

The Play/Stop button starts and stops the playout of a waveform in both the AWG mode and the Functions mode. This operates the same as the front-panel Play/Stop button.

button changes appearance to indicate the current playout status. Refer to Run state control

The

(see page 16).

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 21

Working with the AWG Working with the waveform list

Table 2: (cont.)

Reset to Default Setup returns all instrument settings to their factory settings.

NOTE. The contents of the Waveform List, Sequence List, and Captured Signal List are removed.

Restoring the default setup does not re-enable the graphical waveform display if Show Analog

(see page 16) is toggled off.

This control does not reset any installed Waveform Plug-in applications or the Precompensation application (if installed).

Restore Last Setup returns the instrument to the most recent setup that was accessed.

Reset Window Layout returns all window panels (moved or undocked) to their original locations.

Toggle the font size (large or small) used in the user interface.

The User Manual button displays the instrument help system.

NOTE. Pl

display their User Manual.

xxx

ug-in applications have their own help system and display an additional help button to

Toolbar

Working with the waveform list

The Waveform List contains the waveforms available for playout.

You can drag and drop a waveform from the Waveform list onto the channel’s graph area, assigning that waveform to play on the channel. See below when working with IQ waveforms.

Touch and hold or right-mouse click on a waveform to display a pop-up menu of tools to modify waveforms, assign a waveform to a channel, save, remove waveforms, and view a waveform’s properties.

22 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Working with the waveform list

IQ waveforms (display)

IQ waveforms cannot directly be assigned to play on a channel, only the I or Q components can be played out.

When adding an IQ waveform to the Waveforms List, the I and Q components are separated and a sublist is created under the IQ waveform. Use the arrow next to the IQ waveform name to expand or collapse the sublist.

Use the sublist to assign the I or Q components to a channel for playout.

IQ wav

If you have I and Q waveform ﬁles, you can use the Waveform list to combine them into an IQ waveform.

From within the Waveform List, select both the I and Q waveforms.

NOTE. The waveform selected ﬁ rst becomes the I waveform. The waveform selected second becomes the Q waveform.

eform (create)

With the selections made, display the right-click menu and select Make IQ Waveform. The I and Q waveforms must be of equal length.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 23

Working with the AWG Adding a waveform

A new IQ waveform is generated using the ﬁrst selected waveform as the I component and the second selected waveform as the Q component. Hovering over the menu displays a tool tip showing which waveform is I a

The name of the IQ waveform generated uses the name of the I waveform (without sufﬁx"_I"or"_Q") andisappendedwith"_IQ".

nd which waveform is Q.

Adding a waveform

To add a waveform to the Waveform List, select the Open Waveform button. This opens a Windows dialog box that allows you to navigate to a stored waveform, setup ﬁle, or sequence ﬁle. (You can load waveforms contained in Setup ﬁles and sequence ﬁles without loading the setup or sequence.)

If the waveform is a valid waveform type, the waveform is added to the Waveform List. Once a waveform is in the Waveform List, it can be assigned to a channel for playout. Click here to see the list of valid waveform ﬁle types.

24 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Adding a waveform

Valid ﬁle types Description

.AWGX ﬁle form

Setup ﬁle crea

Setup ﬁles can contain m ultiple waveforms and multiple sequences.

ted by Tektronix AWG70000 Series instruments.

NOTE. Opening a setup ﬁle from the Waveform List does not restore the instrument

y the waveforms contained in the setup ﬁle are restored.

ated by Tektronix AWG5200/AWG70000 Series instruments,or

(see page 191) for information about the format of this type

ﬁle.

reated by Tektronix AWG5000 or AWG7000 Series instruments.

.WFMX ﬁle for

.AWG ﬁle fo

rmat

mat

settings, onl

Setup ﬁle cre SourceXpress.

See Waveform ﬁle format of waveform

Setup ﬁle c

NOTE. The Tektronix AWG5000 or AWG7000 Series instruments had predeﬁned

waveforms available for use.

Saved setup ﬁles that used predeﬁned waveforms did not save the actual waveform data with used predeﬁned waveforms will not import the waveforms. To import these types of waveforms, ﬁrst copy and rename the predeﬁned waveform, then save the setup ﬁle before im

.WFM ﬁle

.ISF ﬁle format Created by Tektronix TDS/DPO/MSO/DSA Series instruments.

.PAT ﬁle format Created by Tektronix AWG400/500/600/700 Series instruments.

.IQT ﬁle format Created by Tektronix RSA3000 Series instruments.

.TIQ ﬁle format IQ waveforms created by Tektronix RSA6000/5000 Series, SPECMON Series

.TFW ﬁle format Created by Tektronix AFG3000 Series instruments.

.TXT ﬁle format Created by Tektronix AWG5000 or AWG7000 Series instruments.

.RFD ﬁle format Created by Tektronix RFX100 RFXpress Advanced RF/IF/IQ waveform software.

.SXD ﬁle format Created by Tektronix SDX100 SerialXpress high-speed serial data signals software.

.MAT ﬁle format Matlab ﬁle type (Level 5 or Level 7.3) for AWG70000 Series.

.TMP ﬁle format Midas BLUE ﬁle type. (Data Type 1000; Scalar and complex data; 8-,16-, 32-, 64-bit

.PRM ﬁle format Midas BLUE ﬁle type. (Data Type 1000; Scalar and complex data; 8-,16-, 32-, 64-bit

CDIF ﬁle format Midas BLUE ﬁle type. (Data Type 1000; Scalar and complex data; 8-,16-, 32-, 64-bit

With the Sequencing option, the following ﬁles types are also valid waveform sources.

format

Created

Created by Tektronix AWG400/500/600/700 Series instruments.

Created by Tektronix TDS/DPO/MSO/DSA Series instruments.

,MDO

IQ waveforms are split into their I and Q components when added to the Waveform List.

See Matlab waveform ﬁle creation requirements for the AWG.

integer and 32- and 64-bit ﬂoat data format type.)

the setup, only the waveform name. Hence, importing setup ﬁles that

porting.

by Tektronix AWG5000/7000 S eries instruments.

4000 Series instruments or S ignalVu-PC.

atlab ﬁle type for RSA6000/5000 Series and SPECMON S eries.

(see page 196) for information on Matlab ﬁle

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 25

Working with the AWG Adding a waveform

Valid ﬁle types Description

.SEQX ﬁle form

.SEQ ﬁle format Sequence ﬁle created by Tektronix AWG400, AWG500, AWG600, or AWG700 Series

xxx

Sequence ﬁle c a subsequence.)

instruments. (Also can be a subsequence.)

See Sequence of sequence ﬁle.

reated by Tektronix AWG70000 Series instruments. (Also can be

ﬁle format

(see page 189) for information about the format of this type

If selecting a ﬁle type containing multiple waveforms (.AWGX, .MAT, .AWG, .SEQX), you are presented with the Available Waveforms dialog box can load al

l the waveforms or select a subset of the waveforms.

(see page 26) that lists all waveforms contained in the ﬁle. You

NOTE. When opening a setup ﬁle (.AWGX) from the Waveform List, only the waveforms are ex tracted; instrument settings contained in the setup ﬁle are not restored. Use the Open File in the Toolbar

(see

page 20) to restore both the settings and waveforms from a .AWGX setup ﬁle.

If you want any of the waveforms (extracted from a setup ﬁle) to be available outside of the setup ﬁle, select and save each individual waveform.

NOTE. If using the Channel workspace to load a waveform from a setup type ﬁle, you are only allowed to choose one waveform since the waveform is directly assigned to the channel.

Available waveforms

26 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Adding a waveform

Non-navtive analog ﬁles

When adding analog waveform ﬁle types that are not native to the AWG, you are presented with the

Importing Waveform dialog screen

to normalize (rescale) the waveform while adding to the waveform list.

Import wavef

orm

Digital text waveform ﬁle

When a displays to specify the digital bit resolution of the ﬁle before the waveform is added to the waveform list.

Choo

It’s important to know the details of your waveform before you import so you do not affect the integrity of the waveform. For instance, selecting 10 bits for a waveform that is intended to use 8 bits for data a nd two bits for markers will add the marker bits to the waveform data and markers will not be available.

dding a digital text (.TXT) waveform ﬁ le, the Import Digital Waveform Text File

se from the following:

8 Bits (waveform + 2 markers): For 10 bit ﬁles that use 8 bits for data, and two bits for markers.

9 Bits (waveform + 1 marker): For 10 bit ﬁles that use 9 bits for data, and one bit for a marker.

10 bits: For 10 bit ﬁles without markers.

dialog box

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 27

Working with the AWG Adding a waveform

Import digital waveform text ﬁle

NOTE. With the optional Sequence feature, waveforms are also added to the waveform list when loading a sequence ﬁle or setup ﬁle that contains a sequence.

IQ waveforms

When adding an IQ waveform, the waveform is added to the Waveform list but with a sublist of its I and Q components. You cannot assign the IQ waveform directly to a channel on the home screen, only the I or

NOTE. You can select to modify an IQ waveform. The modify dialog screen does support displaying an IQ waveform. See the section Modify waveform dialog screen

Q components can be assigned.

(see page 33).

Multi-waveform select

Through the Open Waveform menu in the Waveform List, you can select multiple waveform ﬁles to load into the waveform list at once.

To select a contiguous block of ﬁles, click the ﬁrst ﬁ le in the block. Then hold down the Shift k ey as you click the last ﬁle in the block. This will select not only those two ﬁles, but everything in between.

To select multiple ﬁles that are not a contiguous block, click one ﬁle. Then hold down the Ctrl key while you click each additional desired ﬁle.

If your selection includes sequence ﬁles or setup ﬁles, all waveforms saved with those ﬁle types are loaded into the waveform list.

CAUTION. Loading groups of waveforms will overwrite any existing waveform of the same name in the Waveform List without warning.

28 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Saving a waveform

NOTE. Multiple ﬁle selection is available via the Open Waveform menu. Loading waveforms from the Open File menu (in the tool bar) or from the pull-down list in the graphical waveform area does not support multi

ple ﬁle selection.

Saving a waveform

To save a waveform, touch and hold on a waveform (or right mouse click) and select Save or Save As. This opens a

Click here to see the list of valid waveform ﬁle types.

Valid ﬁle types Description

.WFMX ﬁle format Native waveform ﬁle.

.WFM ﬁle format Tektronix AWG400/500/600/700 series waveform ﬁle.

.TXT ﬁle format Waveform ﬁle.

.TIQ Valid for IQ waveforms.

xxx

Windows dialog box that allows you to navigate to a location to save the waveform.

Maximum waveform size is limited to <200 M.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 29

Working with the AWG Apply corrections

Apply corrections

Right click on any waveform (or two waveforms for I/Q correction) and select the Apply Corrections menu.

With the Apply Corrections dialog screen, you can choose to apply one of two types of correction:

Sin(x)/x distortion correction

Apply a correction ﬁle (coefﬁcient ﬁle)

For information about the two types of correction, refer to these sections:

Apply Sin(x)/x correction (see page 41)

Apply correction ﬁle (see page 41)

Assign a waveform to a channel

To play a waveform, you need to assign it to a channel. This is true even for a single channel instrument.

There are several methods to assign a waveform to a channel.

30 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Assign a waveform to a channel

Drag a waveform from the Waveforms list onto a channel’s plot area.

Touch and hold (or right mouse click) on a waveform name in the Waveforms list and use the pop-up window to assign it to a channel.

If working with an IQ waveform, only the I or Q components can be assigned. IQ waveforms display the following menu for assigning the waveforms.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 31

Working with the AWG Modify waveform

Use the drop-down list in the channel’s plot areatoassignthechanneltoplayawaveform.

Load a waveform from the Waveform list

Browse for a waveform ﬁle. (Opens a Windows browser screen to na vigate to saved ﬁles.) Opening a sequence ﬁle while browsing for a waveform opens a d ialog box displaying the waveforms available in the sequence.

Choose from previously loaded waveforms (maximum of two displayed)

See the section Assigning tracks to a channel

Modify waveform

You can select any waveform contained in the Waveform List to modify it or create a new waveform based

e existing waveform. But note the following conditions:

on th

(see page 51) about assigning sequences.

Any waveform can be modiﬁed by selecting Modify Waveform –> {Sample Rate/Length / Scale/Offset

tate/Shift / Invert/Reverse / Pattern}. Select one of these waveform modiﬁers displays the Modify

/Ro

Waveform (see page 33) dialog screen.

selecting a wavefor m that was created with a Waveform Plug-in, a menu choice is added to take

If you directly to the speciﬁc Waveform Plug-in editor screen. Refer to the section about Waveform

Plug-ins (see page 147).

With an S-Parameter license, you also have the option to apply S-Parameters to the waveform. Refer to the section about Applying S-Parameters

Select a waveform in the Waveform List, touch and hold (or right mouse click) to display the waveform operations.

32 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

(see page 43).

Working with the AWG Modify waveform

Select one of the waveform modiﬁers to display the Modify waveform dialog screen (see page 33).

Modify waveform dialog screen

The Modify Waveform dialog screen provides you with the controls and settings to modify a waveform and save it as a new waveform or overwrite the original waveform.

All operations that are available on the home screen waveform display (such as zooming, cursors, and menu operations) are also available in the waveform display.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 33

Working with the AWG Modify waveform

If modifying an IQ waveform, the I and Q waveforms are displayed. The I waveform color uses the color assigned to the channel; the Q waveform is show in gray.

Here are tips and notes about using the Modify Waveform feature:

The waveform must be in the Waveform List.

ly one modiﬁcation is allowed at a time, requiring you to compile the new waveform for each

On modiﬁcation. This avoids any uncertainty of modiﬁcations since some modiﬁcations can affect other characteristics.

Some modiﬁcations may cause a reduction in ﬁdelity to the new waveform.

34 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Modify waveform

The waveform displayed in the dialog screen represents the waveform being modiﬁed. After compiling, the resulting waveform is displayed.

New or modiﬁed waveforms are placed in the Waveform List, but are not automatically saved to the hard drive (or other location). They do become part of the setup ﬁle if the setup is saved. To make a modiﬁed wave

form available for use in other setups, select the modiﬁed waveform and use Save or

Save As to save the waveform.

Sample Rate / Length tab

Resample, Multiply By

Add or Subtract Samples

Repeat Waveform Duplicates the waveform the deﬁned number of times. You cannot enter a value less than one.

Scale / Offset tab

Scale

Multiplier

Maximum amplitude

Add Offset Adds normalized offset to the waveform’s current DC offset.

Range

Enter a value to Increases the number of samples of the waveform.

You can also request a sample rate which will automatically enter the correct multiplication factor to obtain the requested sample rate.

Adds or removes samples from the end of the waveform. Adding samples repeats the last sample of the waveform.

You can also request a speciﬁc length (number of samples) which will automatically enter the number of samples to add or remove.

You can also request a speciﬁc length (number of samples) which will automatically enter the duplication factor.

The Multiplier box allows deﬁne a m ultiplication factor to modify the output amplitude and offsets.

Only the analog data is modiﬁed. Markers are not affected.

The Maximum amplitude adjusts all values to obtain the full scale amplitude of the instrument.

Select the Preserve offset setting If you wish to retain the existing offset value.

Scale is not adjustable when adding offset.

You can apply the modiﬁcations to the entire waveform (All Samples) or between the cursors.

If you select Between Cursors, position the two cursors on the displayed waveform in order to deﬁne where the pattern is applied. (If cursors are not displayed, they are automatically enabled.

TE.

Range is not available when modifying an IQ waveform.

nter a value in degrees or number of samples to rotate the waveform horizontally. Rotating the

E waveform takes the end of the waveform (deﬁned by the degrees or samples) and moves it to the front of the waveform.

Enter a value in degrees or number of samples to shift (or move) the waveform horizontally. Shifting moves the waveform and repeats the ﬁrst waveform sample value to ﬁll in the waveform.

tate / Shift tab

otate waveform,

R wrap samples

Shift waveform, repeat sample to ﬁll

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 35

Working with the AWG Modify markers

Rotate / Shift t

Apply Rotatio To

Invert/Reverse

Invert

Reverse

Range

All Samples All samples affects the entire analog and marker signals.

Between Cursors You can deﬁne a particular segment of the waveform to invert or reverse. If cursors are not

Pattern tab

See the Modify markers (see page 36) section on using the Pattern features.

xxx

n/Shift

Rotation and S

Select which components of the waveform you wish to invert.

Select which components of the waveform you wish to reverse.

Select the range of samples you want to invert or reverse.

All samples affects the entire analog and marker signals.

Between Cursors

displayed, they are automatically enabled.

Move the curs ors to deﬁne the affected area.

The waveform display has the same control functions as those for the waveform in the Home tab, such as zooming.

hift is available for the analog data and the markers.

Modify markers

You can select any waveform contained in the Waveform List to modify the waveform markers.

lect a waveform, touch and hold (or right mouse click) to display the waveform operations.

36 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Modify markers

Select Modify Markers to display the Pattern editor tab in the Modify Waveform dialog screen.

The pattern editor allows you to modify the Analog waveform and/or Markers. Once you’ve deﬁned your changes, you need to compile the new waveform. By default, a new waveform is created (based on the existing name) and is placed in the Waveform List.

The controls are described below.

Pattern Type. Three patterns are available:

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 37

Working with the AWG Modify markers

High: The sample points (all samples or between cursors) are set to their high values. Marker samples are set to 1. The analog waveform samples are set to the waveform maximum value.

Low: The sample points (all samples or between cursors) are set to their low values. Marker samples are set to 0. The analog waveform samples are set to the waveform minimum value.

Pulse: The sample points (all samples or between cursors) alternate between their high and low values for the deﬁned number of samples.

When choosing Pulse, additional settings are displayed:

Start Level deﬁnes whether the cycle of pulses start from their high or low value.

High Steps deﬁnes how many sample points are set to high.

Low Steps deﬁnes how many sample points are set to low.

The combined number of samples for the High and Low steps are limited to the number of samples available in the waveform

The number of pulse cycles is calculated and displayed. The number of cycles based on the number of samples used for the high and low steps and if it’s being applied to the entire waveform or between cursors.

NOTE. An invalid pulse deﬁnition (such as 0 samples for the high or low steps) will not let the waveform

pile.

com

Apply Modiﬁcations To. The modiﬁcationscanbeappliedtotheanalogwaveformandthemarkers.By

default, only the markers are selected.

Range. You can apply the pattern modiﬁcations to the entire waveform (All Samples) or between the

cursors.

38 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Waveform properties

If you select Between Cursors, position the two cursors on the displayed waveform in order to deﬁne where the pattern is applied. (If cursors a re not displayed, they are automatically enabled.

The waveform display has the same control functions as those for the waveform in the Home tab, such as zooming.

Waveform properties

You can select any waveform in the Waveform List to view its properties.

Select a waveform, touch and hold (or right mouse click) to display the waveform operations.

Select Properties to display the Waveform Properties dialog screen.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 39

Working with the AWG Waveform properties

The Waveform Properties dialog screen provides many details about the waveform that are static (not able to modify), such as the name, length, and signal format.

The Signal Format displays the type of waveform, which will show one of the following:

Real: Waveform containing data other than I, Q, or IQ.

I: Waveform contains I data.

Q: Waveform contains Q data.

IQ:Wa

The items you are able to modify include:

Recommended settings are used when the system is deﬁned to use the sequence settings instead of the system settings during playout. Refer to General setup settings.

veform contains IQ data.

Recommended Sample Rate: Typically deﬁned by the waveform when it was created, you can change the recommend sample rate as needed.

Recommended Amplitude: Typically deﬁned by the waveform when it was created, you can change the recommend amplitude as needed.

Recommended Offset: Typically deﬁned by the waveform when it was created, you can change the recommend offset as needed.

Recommended Frequency: IQ waveforms only. Typically deﬁnedbythewaveformwhenitwas created, you can change the recommend frequency as needed.

(see page 56) to enable use of the recommended

40 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Applying Sin(x)/x correction

Applying Sin(x)/x correction

Select the Sin(x)/x distortion correction to apply to the waveform. The End Frequency of the Sin(x)/x distortion correction is initially set to ½ the recommended sample rate of the waveform.

Distortion correction coefﬁcients are deﬁned up to the End Frequency. FIR ﬁlter is applied to the impulse response (smooth roll-off).

Choose to either create a new waveform or overwrite the existing waveform and select Apply.

Applying correction ﬁle

Correction ﬁles for waveforms can contain two types of coefﬁcients, RF coefﬁcients or IQ coefﬁcients.

RF coefﬁcients can be applied to Real, I, or Q ﬁles. Select a single waveform and apply the correction ﬁle.

IQ coefﬁcients must be applied to two waveforms, I and Q. Select the two waveforms (high lighting both at the same time) and apply the correction ﬁle.

A window opens to allow you to navigate to the saved coefﬁcient ﬁle (correction ﬁle).

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 41

Working with the AWG Applying correction ﬁle

Use the browse folder icon to navigate to a saved correction ﬁle.

Choose to either create a new waveform or overwrite the existing waveform.

Onceavalidﬁle path is entered, the Correction Settings icon display the Frequency Response screen.

If applying an RF correction ﬁle, the Frequency Response screen shows plot information and provides Advanced options to apply a Gaussian ﬁlter or remove Sin(x)/x distortions.

is enabled. Select the Setting icon to

If applying an I/Q correction ﬁle (to a pair of I and Q waveforms), the Frequency Response screen shows plot information and provides Advanced options to apply a skew.

42 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Apply S-Parameters

Apply S-Parameters

S-Parameters (scattering parameters) can be applied to RF waveforms or IQ waveforms in the Waveform List.

NOTE. The S-Parameter selection becomes available only if an S-Parameter license is currently installed.

ing to apply S-Parameters displays the Apply S-Parameter dialog screen, allowing you to select

Select the S-Parameter ﬁle and deﬁne its characteristics.

Below being modiﬁed, the S-Parameters dialog screen provides additional selections to apply the parameters to the I component, Q c omponent, or both I and Q.

The dialog screen changes to accommodate the Number of Ports selected.

The

is a sample S-Parameter dialog screen with the Number of Ports set to 4. If an IQ waveform is

information provided for S-Parameters applies to both the Non-Cascading and Cascading modes.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 43

Working with the AWG Apply S-Parameters

44 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Apply S-Parameters

Item Description

Mode

Select Non-Cascading or Cascading S-parameter mode.

In the Non-Cas from only one S-parameter ﬁle.

In the Cascading mode, you can cascade up to six S-parameter ﬁles in Stages and apply the characteristics on the signal. You can select the ﬁles to apply by turning on or turning off the corresponding Stages shown in the display. All the selected ﬁles should be of the same type. The settings depend on the selected type of ﬁle.

cading mode, you apply S-parameter characteristics on the signal

The ﬁles supported are s1p, s2p, s4p, s6p, s8p, and s12p.

De-embed (Non-Cascading mode)

Cascading De-embed (Cascading mode)

Bandwidth

Check the box to invert the S-Parameters from the signal. T his removes the effects of the component (for which the S-Parameters were created) from the signal path.

Auto – The bandwidth is de ﬁned at the point where the signal rolls off to -60 dB. If this results in a bandwidth greater than the instrument supports, the bandwidth is set to ½ of the waveform’s sample rate (i.e. Nyquist Frequency).

Full Bandwidth – The bandwidth is set to ½ of the waveform’s sample rate (i.e. Nyquist Frequency).

Manual – The bandwidth can set by the user from 1 Hz to ½ of the maximum sample rate of the instrument. If the set Bandwidth is greater than the Nyquist (Sample rate of the waveform/2), then the software limits the bandwidth to ½ of the waveform’s sample rate. A warning message is provided.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 45

Working with the AWG Apply S-Parameters

Item Description

Number of Ports Choose the number of ports. The port matrixes supported are 1, 2, 4, 6, 8, and 12.

The number of p

• The type of S-Parameter ﬁle to apply

• The Signalling Scheme choice

• The port mat

S-Parameter

Signallin

(Only for 4, 8, and 12 ports)

Selection of the port

(No port s environments)

Victim

Aggress

(Only for 8 and 12 ports)

Port Selection The Port Selection button is available only when in Cascading mode. Press the

File

g Scheme

election for 1 Port

or and Both

Navigate to t that you are able to open is dependent on the number of ports selected. For instance, only .s4p ﬁles can be opened if the Number of Ports is set to 4.

The ﬁles sup

Signle-En the ﬁle to physical locations in your link.

Differential: If the data is differential, you must select the data layout in the ﬁle.

Use the diagrams to map the ports for the transmitter ports (Tx-Port) and the receiver ports (Rx

When choosing the number of Ports, you are presented with an active diagram of the ports. The diagram presented reﬂects the Number of Ports selected and the

ing Scheme (if appropriate for the ports selected).

Signall

The default setting with no cross-talk effects.

Victim:

Aggressor: Select this to activate aggressor signal parameters, adding the effect of cross-talk.

Port Selection button to display an active dialog screen to map the ports for the

itter ports (Tx-Port) and the receiver ports (Rx-Port) for each s tage.

transm

orts selected determines:

rixes available

he Touchstone ﬁle to apply to the signal. The type of Touchstone ﬁles

ported are s1p, s2p, s4p, s6p, s8p, and s12p.

ded: If the data is single-ended, you must map the port numbers as used i n

-Port).

xxx

S-Parameter ﬁle descriptions

1-port

Files with one port of data contain only one S-parameter ﬁle (s1p) so they do not require any further input.

46 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Apply S-Parameters

2-port

Files with data for two ports contain four S-parameters as a 2x2 matrix. These are Touchstone 2-port ﬁles

p). A dialog box is created to deﬁne the 2-port mapping.

(s2

4-Port

Files with data for four ports contain 16 S-parameters as a 4x4 matrix. These are Touchstone 4-port ﬁles (s4p). They may contain single-ended or differential data. A dialog box is created to d eﬁne the 4-port mapping for either single-ended or differential data.

If the data is single-ended, you must map the port numbers as used in the ﬁle to physical locations in your link.

You can select the port for both transmitter and receiver from the drop-down list. Each drop-down list has ports from 1 to 2.

If the data is differential, you must select the data layout in the ﬁle.

6-port

Files with data for six ports contain 36 S-parameters as a 6x6 matrix. These are Touchstone 6-port ﬁles (s6p). A dialog box is created to deﬁne the 6-port mapping.

8-Port

Files with data for eight ports contain 64 S-parameters as an 8x8 matrix. These are Touchstone 8-port ﬁles (s8p). They may contain single-ended or differential data. A dialog box is created to d eﬁne the 8-port mapping for either single-ended or differential data.

If the data is single-ended, you must map the port numbers as used in the ﬁle to physical locations in your link.

You can select the port for both transmitter and receiver from the drop-down list. Each drop-down list has ports from 1 to 4.

If the data is differential, you must select the data layout in the ﬁle.

12-Port

Files with data for 12 ports contain 144 S-parameters as an 12x12 matrix. These are Touchstone 12-port ﬁles (s12p). They may contain single-ended or differential data. A dialog box is created to deﬁne the 12-port mapping for either single-ended or differential data.

If the data is single-ended, you must map the port numbers as used in the ﬁle to physical locations in your link.

You can select the port for both transmitter and receiver from the drop-down list. Each drop-down list has ports from 1 to 6.

If the data is differential, you must select the data layout in the ﬁle.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 47

Working with the AWG Sequence list

Aggressor signals

8 and 12 port S-parameters allows you to activate aggressor signal parameters and to add the effect of cross-talk. 12 port S-parameters allows 2 Aggressor signal parameters.

AggressorscanbeaddedineitherNon-Cascading Mode or Cascading Mode.

The Aggresso

Item Description

Signal Choose the type of aggressor signal with the dropdown list:

Data Rate

Aggressor Amplitude Enter the signal amplitude.

Crosstalk Type Choose the type of crosstalk of the aggressor signal.

xxx

Sequence list

r signal parameters include:

•Clock:Ind

• PBRS: Also choose the number of bits

• File: Indicates that the aggressor signal is another pattern ﬁle. Navigate to the Patter

• Same as victim: The signal ﬂ ow of the aggressor is same as the victim.

Specify the data rate (in bps) of the signal.

This is not available when the Aggressor signal is set to be the same as the victim.

• Near-

• Far-End Crosstalk

• Both

icates that the aggressor signal is a clock pattern.

n ﬁle

End Crosstalk

The Sequence List contains the available sequences. Sequencing option is required.

To add a sequence to the list, see Adding a sequence

(see page 49).

To play a sequence track, it needs to be assigned to a channel. Refer to Assigning tracks to channels

(see page 51).

Touchandholdorright-mouseclickonasequencetodisplayapop-upmenuoftoolstomodify,rename, save, copy, and remove sequences.

48 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Adding a sequence

Item Description

Modify Sequence Opens the Sequence tab and loads the selected sequence into the sequence editor.

Refer to the section Sequence create and edit toolbar

Make a Copy Creates a copy of the selected sequence and places the copy in the Sequence List. The

copy is renamed by adding a numerical sufﬁx to the end of the original name.

Save Saves the sequence to the speciﬁed location.

Save As ... Opens a window to save the sequence with a new ﬁle name. This only changes the ﬁle

name, it does not change the sequence name that appears in the Sequence List.

Rename

Remove

Remove All

Properties

xxx

Changes the sequence name currently displayed in the Sequence List.

Use Save or Save As .... to save the sequence with the new name.

Use remove to remove the selected sequence(s).

Remove All removes all sequences from the Sequence List.

Displays information about the sequence. Refer to the section Sequence properties

(see page 55).

(see page 111).

Adding a sequence

To add a sequence to the Sequence List, select the Open Sequence button. This opens a Windows dialog box that allows you to navigate to a saved sequence or setup ﬁle. If the sequence or setup ﬁle is a valid ﬁle type , the sequences are added to the Sequence List and waveforms (used in the sequence) are added

o the Waveform List. Once a sequence is in the Sequence List, a sequence tra ck can be assigned to

t a channel for playout.

See Assigning a track to a channel.)

(

Click here to see a list of valid sequence ﬁle types.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 49

(see page 51)

Working with the AWG Adding a sequence

Valid sequence

.SEQX ﬁle form

.AWGX ﬁle form

ﬁle types

Description

Sequence ﬁle c

Setup ﬁle crea

Setup ﬁles can contain multiple sequences and multiple waveforms.

reated by Tektronix AWG70000 Series instruments.

ted by Tektronix AWG70000 Series instruments.

NOTE. Opening a setup ﬁle from the Sequence List does not restore the

instrument s along with any waveforms used in the sequences.

.AWG ﬁle format Setup ﬁle created by Tektronix AWG5000 or AWG7000 Series instruments.

ettings, only the sequences contained in the setup ﬁle are restored

NOTE. The Tektronix AWG5000 or AWG7000 Series instruments had predeﬁned

waveforms

Saved setu data with the setup, only the waveform name. Hence, importing setup ﬁles that used predeﬁned waveforms will not import the waveforms. To import these types of waveform ﬁle before importing.

available for use.

p ﬁles that used predeﬁned waveforms did not save the actual waveform

s, ﬁrst copy and rename the predeﬁned waveform, then save the setup

NOTE. The Tektronix AWG5000 or AWG7000 Series instruments supported

subsequ are imported as another sequence and added to the Sequences list.

.SEQ ﬁle format Sequence ﬁle created by Tektronix AWG400, AWG500, or AWG600 Series

instruments.

xxx

cting a setup type ﬁle containing multiple sequences, you are presented with the Available Sequences

If sele

encing (using another sequence as a step in a sequence). Subsequences

dialog box that lists all sequences contained in the setup ﬁle. You can load all sequences or select a subset of the sequences. Waveforms that are part of any sequence are added to the Waveform List.

Available sequences

50 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Saving a sequence

NOTE. When opening an AWG70000 Series setup ﬁle (.AWGX) from the Waveform or Sequence lists, only waveforms and sequences are extracted; instrument settings contained in the setup ﬁle are not restored. Use the Open Fi

le in the Toolbar

(see page 20) to restore the settings, waveforms, and sequences from a

.AWGX setup ﬁle.

If you want an

y of the waveforms or sequences (extracted from a setup ﬁle) to be available outside of the

setup ﬁle, select and save each individual waveform.

Multi-sequence select

Through the Open Sequence menu in the Sequence List, you can select multiple sequence ﬁles to load into the sequence list at once.

To select a contiguous block of ﬁles, click the ﬁrst ﬁle in the block. Then hold down the Shift key as you click the last ﬁle in the block. This will select not only those two ﬁles, but everything in between.

To select multiple ﬁles that are not a contiguous block, click one ﬁle. Then hold down the Ctrl key while you click each additional desired ﬁle.

CAUTION. Loading a group of sequences will overwrite any existing sequence of the same name in the Sequence List without warning.

NOTE. Multiple sequence selection is not available from the Open File menu in the tool bar or from the pull-down list in the graphical waveform area.

Saving a sequence

To save a sequence, touch a nd hold on a sequence (or right mouse click) and select Save or Save As. This opens a Windows dialog box that allows you to navigate to a location to save the sequence.

Click here to see the list of valid sequence ﬁle types.

Valid ﬁle types Description

.SEQX ﬁle format Native sequence ﬁ le.

.SEQ ﬁle format Sequence ﬁle for AWG5000 and AWG7000 series instruments.

See Sequence ﬁle format of sequence ﬁle.

xxx

Assigning tracks to a channel

A sequence can consist of up to eight different tracks. (A minimum of one track is required). To play a sequence track, you need to assign a track to a channel. This is true even for a single cha nnel instrument.

(see page 189) for information about the format of this type

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 51

Working with the AWG Assigning tracks to a channel

There are several methods to assign a sequence track to a channel. (See below for further information regarding one channel and two channel instruments.)

Drag an entire sequence onto a channel’s plot area. This always assigns track 1 to channel one. On a two channe l instrument, the second track of the sequence is assigned to channel two.

Drag a track from a sequence onto a channel’s plot area.

Touch and hold (or right mouse click) on a sequence track in the Sequence List and use the pop-up window to assign it to a channel.

Use the You can choose sequence tracks from sequences already loaded into the Sequence List or you can browse for sequence ﬁles. When browsing, you select the sequence ﬁle, and then select the track to assign to the channel.

drop-down list in the channel’s plot area to assign the channel to play a sequence track.

Assigning tracks on a one channel instrument

With a one channel instrument, the following actions occur when assigning a track to play on the channel:

52 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Assigning tracks to a channel

If you drag and drop a sequence onto the channel’s graph area, Track 1 is assigned to the channel. This is true regardless of how many tracks the sequence may contain.

You can drag and drop (or assign) any track from any sequence onto the channel’s graph area.

Assigning tracks on a two channel instrument

With a two channel instrument, you have the option to play multiple tracks, either from the same sequence or different sequences. You also have the option to play a sequence track on one of the channels while playing a s

The following describes the interactions between the two channels:

You can drag and drop the entire sequence onto one of the channel’s graph area. This automatically assigns Track 1 of the sequence to the channel.

ingle waveform on the other.

If the sequence has only one track, you can drag and drop the sequence to one or both channel’s graph area and the single track will play on both channels.

If the sequence has multiple tracks, you can drag and drop the sequence to either channel’s graph area.Inthiscase,Track1isassignedtoChannel1andTrack2isassignedtoChannel2. Thisis

ack assignment regardless of which channel you drag the sequence to.

the tr

If playing tracks from the same sequence on both channels, the channels are coupled together.

requires that the waveforms be of equal length for each step of the two tracks. In this case,

This the Force jump to... button actions are coupled together.

an drag and drop (assign) a speciﬁc track from different sequences onto the channel’s graph area.

You c

This gives you the freedom to play any track from any sequence. Since the tracks are from different

uences, the channels are not coupled together.

seq

You can play a sequence track on one channel while playing a waveform on the other channel.

Assigning tracks containing IQ waveforms

Q waveforms cannot be assigned to a channel for playout, only their I or Q components can be assigned to

I a channel.

Sequence tracks that contain an IQ waveform provide a drop down menu for you to choose which component of the IQ waveform you want the channel to play. If a track contains multiple IQ waveforms, the I or Q selection applies to all IQ waveforms in the track.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 53

Working with the AWG Edit a sequence

Edit a sequence

You can select any sequence contained in the Sequence List to modify it or create a new sequence based on the existing sequence. Select any sequence in the list, touch and hold (or right mouse click) to display the sequence operations. Selecting Modify sequence opens the sequence in the Sequence tab window

iting.

for ed

NOTE. You cannot edit a sequence from the Home tab. See Sequence tab overview

(see page 108).

54 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Sequence properties

Sequence properties

You can select any sequence contained in the Sequence List to view its properties.

The Sequence Properties dialog screen provides many details about the Sequence that are static (not able to modify).

The items you are able to modify include:

Recommended Sample Rate: This is typically deﬁned by the sequence when it was created. You can changetherecommendedsamplerateasneeded.

Recommended Amplitude: This is typically deﬁned by the sequence when it was created. You can change the recommended amplitude as needed.

Recommended Offset: This is typically deﬁned by the sequence when it was created. You can change the recommended offset as needed.

Recommended Frequency: This is typically deﬁned by the sequence when it was created and is only displayed if the sequence contains an IQ waveform. You can change the recommended f requency as needed.

Recommended settings are used when the system is deﬁned to use the sequence settings instead of the system settings during playout. Refer to General setup settings.

(see page 56) to enable use of the recommended

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 55

Working with the AWG General setup overview

General setup overview

The General tab under Setup displays the controls to enable or disable certain global actions that are not channel dependent.

General setup

The Streaming tab is only available on the AWG70000B series.

Use the General setup tab to:

Enable dynamic loading (see page 56)

Enable all channels on play (see page 57)

Apply recommended settings on assignment (see page 57)

Enable dynamic loading

When enabled, you are able to modify and reload a waveform within a sequence while the sequence is playing.

When not enabled, attempting to modify or replace a waveform in a sequence that is currently playing stops the playout.

Other conditions about this control:

Waveform loading is slower than typical.

The waveform being modiﬁed and reloaded must be the same size as the original one.

Do not modify and reload a waveform while the target waveform is playing. Reloading a waveform that is currently playing may produce unexpected outputs or cause the sequence to fail.

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Working with the AWG Enable all channels on play

Enable all channels on play

When enabled, all channels (loaded with a valid waveform or valid sequence) are enabled when the playout is initiated either from the user interface or the front-panel Play button. All Outputs Off control is not affected

Other conditions about this control:

This control is disabled at the initial (ﬁrst) startup of the AWG application.

Restoring the factory default settings does not reset this control.

Restarting the system does not reset this control.

This setting is not saved as part of a setup ﬁle.

Apply recommended settings on assignment

When enabled, the system attempts to use the waveform’s recommended settings (sample rate, amplitude, and offset) when the waveform is assigned to a channel. This includes waveforms within sequence tracks assigned to a channel.

Other conditions about this control:

If the waveform is of an IQ type, the recommended frequency is also used.

If a recommended value is not included with the waveform, the current system value remains unchanged.

If a recommended value is not supported by the instrument, a warning message is displayed.

Channel setup introduction

The Channel tab under Setup displays the c ontrols to adjust and control the channel and marker outputs.

Single and two-channel instruments have the same controls for each channel. With a two-channel instrument, use the Channel pull-down list to select the channel you wish to adjust. Also, two-channel instruments can have many of the settings coupled together. Refer to the Couple channel settings

page 65) section for information about how coupling works.

From the Channel setup page, you can:

Enable/disable the channel output (see page 58)

(see

Select the Channel output path (see page 59)

Set the Analog output amplitude (see page 62)

Set the Marker values (see page 64)

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 57

Working with the AWG Enable outputs / relay state

Change the Channel color (see page 67)

Set the Output Options (see page 68)

Output conditions of the Analog and Marker outputs when not actively playing a waveform

Channel setup

The Streaming tab is only available on the AWG70000B series.

Enable outputs / relay state

From the Setup –> Channel tab, the Channel On/Off button internally connects and disconnects the Analog

puts, Marker outputs, and Flag outputs (using internal relays). When disconnected, the outputs are

out electrically ﬂoating. Use the Channel select pull-down list to choose which channel to control. Refer to

Output options

The Channel tab (in Setup) and the Channel button icon displays the status of the channel’s output.

(see page 68) for further information about output conditions.

58 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Channel output path

The channel o

The channel

In this state, the waveform playout will proceed if there are no errors preventing playout, a trigger is supplied as deﬁned by the Run mode, and the All outputs off is not activated.

The channel is enabled but the All outputs off is active and the channel, markers, and ﬂag outputs are disconnected.

xxx

utput is not enabled (outputs are electrically disconnected).

output is enabled (outputs are electrically connected).

Channe

l output path

The cha

nnel output path selector determines the signal path when the channel’s output is enabled.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 59

Working with the AWG Channel output path

Direct: Outputs via the Analog + and – differential output connectors, measured in units of volts. This is the standard signal path. Refer to Direct

AC: Outputs via the single-ended AC connector, measured in units of dBm. The AC path provides additional ampliﬁcation and ﬁltering to the A C output connector. The menu c hoice appears if Option AC is installed and is available only with the AWG70001.

(see page 60) for additional information.

Direct

Refer to AC

DC Amp: This menu choice only appears if a connection to an MDC4500 is sensed via a USB connection. DC Amp provides greater amplitude range via a connection to an MDC4500 instrument. The analog + and – differential output connectors must be connected to the input connectors of the MDC4500 and the Channel Setup controls the outputs of the MDC4500.

Refer t o DC Ampliﬁed

Direct is the standard signal output path which uses the analog + and – output connectors. All channel setup controls operate as explained in the Channel Setup section.

AC is available if Option AC is installed (AWG70001 only). This section describes the differences between the Direct Output Path and the AC Output Path.

With Option AC installed (AWG70001 only), the Output Path menu includes the AC selection).

(see page 60) for additional information.

(see page 61) for additional information.

The AC Output Path outputs via the single-ended AC connector, measured in units of dBm. The AC path provides additional ampliﬁcation and ﬁltering to the AC output connector.

60 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Channel output path

The following sections discuss the added features when using the AC Output Path.

AC output (see page 62)

Filter and Range (see page 68)

Advanced amplitude adjustment (see page 70)

DC Ampliﬁed

This menu choice appears if a connection to an MDC4500 is sensed via a USB connection. A USB

driver must be installed (see page 62) on the AWG.

The DC Amp Output Path is for use when the instrument is directly connected to an MDC4500. The MDC4500 instrument then becomes the signal output, but is controlled by the AWG. This section describes the differences between Direct mode and DC Ampliﬁed mode.

With the DC Amp Output Path selected, the Channel Setup Amplitude control range changes and an Offset control is added.

To use the DC Amp Output Path, the following requirements must be met:

A USB connection between the AWG and MDC4500. (The USB driver must be installed.)

The AWG Analog + and – outputs must be connected to the MDC4500 + and – inputs.

Optional – The AWG marker outputs connected to the MDC4500 marker inputs.

Optional – The AWG ﬂag outputs connected to the MDC4500 ﬂag inputs.

The following section discusses the added features when using the DC Ampliﬁed Output Path.

DC Ampliﬁed output path (see page 63)

Refer to the documentation supplied with the MDC4500 for detailed operating instructions and speciﬁcations about the MDC4500.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 61

Working with the AWG Amplitude

MDC4500 USB installation

A USB connection must be made between the AWG and the MDC4500 instrument.

Install the supplied USB driver on the AWG before making any connections to the MDC4500.

Navigate to:

C:\Program

To install, simply click on the "install.bat" ﬁle and follow all prompts through the installation process.

Amplitude

The amplitude sets the analog output level of the differential (+) to (–) outputs. The selected output mode determines the available range and bandwidth.

The level shown on the Channel Setup tab is the same amplitude shown on the Home tab.

Direct

The level is adjustable from 250 mV to (–) i

Files\Tektronix\MDC4500 Installer

output path

s 500 mV

p-p

to 1 V

p-p

to 500 mV

p-p

for single-ended output. The differential output (+)

p-p

For two channel instruments, the level can be set independently for each channel, unless the Couple settings has been selected. See Couple channel settings

output path

(see page 65).

If you have an AWG70001 instrument with Option AC installed, you have the option to use the

ingle-ended AC output connector.

When set to AC, the output is scaled in dBm but has a higher amplitude output due to the added ampliﬁers

n the output path.

The typical adjustable range is from 18 dBm to –62 dBm, but the range has further limitations based on ﬁltering selections.

62 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Amplitude

The amplitude output is calibrated at a single frequency for each ﬁlter selection. See the table below for the ranges and calibration methods.

Filter selection Amplitude range (typical) Calibration method

None 25 dBm to –70 dBm

Low Pass 25 dBm to –70 dBm

Band Pass

10 to

14.5 GHz

13 to 18 G Hz

xxx

18 dBm to –77 dBm

20 dBm to –90 dBm

Calibrated with a 1 GHz sine w ave.

Calibrated with an 11 GHz sine wave.

Calibrated with a 14 GHz sine wave.

NOTE. Adjusting the Amplitude setting automatically causes the instrument to adjust the various inline

uators to attain the chosen amplitude. Readjusting the attenuators will affect the Amplitude setting.

atten See Advanced amplitude adjustment

(see page 70).

DC Ampliﬁed output path

Amplitude sets the Analog output level of the differential (+) to (–) outputs as output from the MDC4500.

The level is adjustable from 31 mV to (–) is 61 mV

to 2.4 V

p-p

to 1.2 V

p-p

NOTE. This is the output level as seen from the MDC4500, not the AWG70000 instrument.

Offset. The DC Ampliﬁed output path also provides the ability to add an offset to the MDC4500 output.

The offset range is –400 mV to 800 mV.

for s ingle-ended output. The differential output (+)

p-p

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 63

Working with the AWG Markers

Markers

Each analog output channel is capable of providing up to two markers.

To enable the markers, the bit resolution for the channel must be set to include markers. Each marker uses one bit (out of the possible 10). See Resolution bits

(see page 65).

The voltage settings of the High and Low levels range between –1.4 V and +1.4 V.

The High of 1.4 V separation between the settings. A djusting either value forces a change to the other value, if necessary, to maintain the minimum separation.

and Low settings are inter-dependent, requiring a minimum of 500 mV separation or a maximum

Marker logic state timing

rker outputs can change logic states on any sample point in the waveform. But once the logic state

Ma changes, it must remain in that state long enough to satisfy the minimum pulse width requirement of 80 ps.

64 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Resolution (bits)

Resolution (bits)

The bit resolution selection tells the instrument how your waveform was created, either with or without markers, and sets the channel accordingly.

NOTE. It’s im

Selecting 10+0 Mkr indicates that your waveform is using the entire 10 bits for the waveform.

Selecting 9+1 Mkr indicates that your waveform is using 9 bits for the waveform and the least signiﬁcant bit for a single marker.

Selecting 8+2 Mkrs indicates that your waveform is using 8 bits for the waveform and the two least signiﬁcant bits for markers.

solution is selectable for each channel.

The re

portant to know if the waveform you intend to assign to a channel is intended to use markers.

Couple channel settings (AWG70002)

Instruments with two channels have the ability to couple the settings of the channels together, allowing you

hange settings to both channels simultaneously from either channel.

to c

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 65

Working with the AWG Couple channel settings (AWG70002)

When the Couple settings is set to Pair, the Channel 1 settings overwrite the Channel 2 settings. But once coupled, you can use either channel to make changes, but the changes to linked settings always affects both channels.

The following channel settings are coupled together:

66 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Channel color

Output path

Channel amplitude

Resolution (bits)

Marker High and Low values

Stop state

Wait stat e

NOTE. The c from the Home tab.

Channel c

Use the c area on the home tab.

The color is used in the following displays and lights

hannel coupling does not affect the Run Mode coupling. The Run Mode coupling is set

olor

hannel color selection to change the screen color used to display the channel’s plot display

eform plots (on Home tab)

Wav

Marker plots (on Home tab)

Front-panel LED for the channel analog output. (The channel LEDs light when the channel is enabled for output.) Marker LEDs are always white.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 67

Working with the AWG Filter and Range (Option AC only)

Filter and Range (Option AC only)

With Option AC installed (AWG70001 only), the Filter a nd Range selections become available when the Output Path is set to AC. They are used to select various cutoff frequencies.

Filter selection Frequency range

None

Low Pass

Band Pass

xxx

NOTE. Filter and Range selections affect the available amplitude output range. See Amplitude (see

page 62).

10MHzto18GHz

10 MHz to 11.5 GHz

Band Pass has two frequency cutoff ranges:

10 GHz to 14.5 GHz

13 GHz to 18 GHz

Output Options

The Output Options tab is accessed from the Channel screen of the Setup tab.

68 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Output Options

The settings allow you to deﬁne the state of the outputs when the channel is enabled but a waveform is not actively being played out (such as stopped with the play button, waiting for a trigger event, or assigning a wa

When a channel’s output is off, its analog outputs and marker outputs are electrically disconnected from the inst

When a channel’s output is enabled, the outputs are electrically connected to the instrument, preparing to play out a

veform to a channel).

rument (ﬂoating).

waveform.

The Streaming tab is only available on the AWG70000B series.

Output value when stopped or waiting

A channel’s analog outputs and marker outputs have various output conditions:

ying – The waveform (and markers if active) are being output.

Pla

Stopped – Waveform playout has been stopped. This can be due to pressing the Play button to stop the

veform playout, the waveform is loading, or a clock change is in progress.

Waiting – The instrument is waiting for a trigger event, or the brief time between when a waveform

as ﬁnished loading and playout starts.

Sequence End – This is only displayed if Sequencing is available. These are the channel’s Analog and Marker outputs when the end of a sequence is reached. The instrument continues to output the indicated values.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 69

Working with the AWG AC Advanced amplitude adjustment (Option AC)

Analog output settings

0 Volt – Output is set to 0 volts.Stopped state

Off – Output is disconnected (ﬂoating). There is n o electrical connection between the output

the instrument.

t is set to 0 volts.

– Output is set to the value of the ﬁrst point of the waveform.

ut is set to 0 volts.

and the instrument.

ut is set to a logic low.

tput is set to a logic high.

int–Outputissettothevalueoftheﬁrst point of the waveform.

tput is set to a logic low.

Waiting state

Sequence En

Marker outputs settings

Waiting state

Sequen

xxx

d state

ce End state

connector and

0Volt–Outpu

First Point

0Volt–Outp

Low – Output is set to a logic low.Stopped state

Off – Output is disconnected (ﬂoating). There is n o electrical connection between the output connector

Low – Outp

High – Ou

First Po

Low – Ou

On a two channel instrument, the stopped and waiting states are set independently of each other unless you’ve chosen to couple the CH1 and CH2 settings.

AC Ad

The A

From this screen, you can select the Filter Path and Range, which is the same as from the Channel Setup scr and the placement of various attenuators.

vanced amplitude adjustment (Option AC)

dvanced button (AC output path) displays the dialog screen that illustrates the output paths available.

een. But from this screen, you can see how the Filter Path and Range selections affect the signal path

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Working with the AWG AC Advanced amplitude adjustment (Option AC)

Adjustment Description

DAC This is the signal amplitude of the internal DAC. Changing the DAC level affects the Amplitude

level.

The DAC level affects all Filters and Ranges.

Attenuators

A1 through A3 sets the signal amplitude of the attenuator. Changing an attenuator level affects the Amplitude level.

Attenuator A1 is active only for the Band Pass Filter Path when the Range is set to 13 - 18 GHz.

Range is 0 to 31 dB in 1 dB increments.

Attenuator A2 is active for all Filter Paths.

Range is 0 to 31 dB in 1 dB increments.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 71

Working with the AWG Clock introduction

Adjustment Description

Amplitude

Attenuator A3 is active for all Filter Paths.

Range is 0 to 75

This is the sig

dB in 5 dB increments.

nal amplitude at the AC output connector.

NOTE. Adjusting the Amplitude setting automatically causes the instrument to adjust the

various inline attenuators to attain the chosen amplitude. Readjusting the attenuators affects the Amplitud

e setting.

xxx

The amplitude output is calibrated at a single frequency for each ﬁlter selection. The following table lists the ranges and calibration methods.

Filter selection Amplitude range (typical) Calibration method

None 25 dBm to –70 dBm

Low Pass 25 dBm to –70 dBm

Band Pass

10 to 14.5 GHz

13 to 18 GHz

xxx

18 dBm to –77 dBm

20 dBm to –90 dBm

Clock introduction

The Clock Setup determines the waveform output sample rate and the source used to drive the sample clock signal. The Reference In signal input is provided to help you synchronize the AWG to your system

g your own reference signal, and the Reference Out signal performs a similar function by making

usin the AWG's internal frequency source available to other equipment.

The Amplitu displayed on the Home screen.

de value displayed on the Channel Setup screen is the same Amplitude value

Calibrated with a 1 GHz sine wave.

Calibrated with an 11 GHz sine wave.

Calibrated with a 14 GHz sine wave.

72 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Sample Rate

Clock Setup

The Streaming tab is only available on the AWG70000B series.

Sample Rate

The Sample Rate box allows you to set your desired sampling rate. When setting Clock and Reference Source to Internal or Reference In, External 10 MHz, the instrument automatically creates the sampling rate (based on a 10 MHz reference signal). When the reference source is set to use an external variable signal, you can still enter a sampling rate, but its value must be a multiple of the reference signal.

See Clock and Reference Sources and reference signals.

(see page 73) for more detailed information about sampling rates

Clock and Reference Sources

The Clock and Reference Sources controls let you choose what signal source you want to use as a frequency reference for the clock signal. The following table describes each of the settings and how the clock signals are derived.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 73

Working with the AWG Clock and Reference Sources

You can refer to the simpliﬁed block diagram to help understand how the choices affect the signal paths.

Internal For general use, this method is usually adequate.

The clock is derived from the instrument’s internal 10 MHz oscillator as the reference s ignal.

is automatically multiplied or divided, based on the selected Sample Rate.

tion if you want to use your own 10 MHz system frequency as a reference.

requency must be between 35 MHz and 250 MHz. The clock is then derived from

Rate based on the r eference in frequency.

Reference in, 10MHz

Reference In, External Variable

External

The reference

Use this selec

The clock is derived from the 10 MHz signal applied to the Reference In connector. The reference is automatically multiplied or divided, based on the selected Sample Rate.

Use this selection if you want to use your own system frequency as a reference. This reference f the signal applied to the Reference In connector.

When this selection is chosen, use the External Reference Details controls to set or calculate the Sample

The ﬁrst i tem to enter is the Reference In frequency. You can enter the value manually or use the Detect actual freq button to measure the frequency of the applied signal.

After you have the frequency value, you can set the Sample Rate or calculate the Sample Rate.

With the User enters pull-down list, you have three choices:

Sample Rate: you enter the Sample Rate directly and the Reference In signal is multiplied

or divided as needed to obtain the desired Sample Rate.

Multiplier: Enter a value to multiply the Reference In signal, calculating the Sample Rate.

Divider: Enter a value to divide the Reference In signal, calculating the Sample Rate.

74 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Clock and Reference Sources

Clock In, Exte Variable

rnal

Use this selec connector. The clock signal must be between 6.25 GHz and 12.5 GHz.

tion if you want to provide your own system clock signal applied to the Clock In

When this selection is chosen, use the External Clock Details controls to set or calculate the Sample Rate ba

The ﬁrst ite

sed on the clock in frequency.

m to enter is the Clock In frequency. You can enter the value manually or use the

Detect actual freq button to measure the frequency of the applied signal.

After you have the frequency value, you can set the Sample Rate or calculate the Sample Rate.

With the User enters pull-down list, you have two choices:

Multiplier: Enter a value to multiply the Clock In signal, calculating the Sample Rate.

Divider: Enter a value to divide the Clock In signal, calculating the Sample Rate.

The Adjus

t button allows you to easily calibrate the system clock circuitry. You can run this at any time. The button turns red when the system detects changes that may impact clock accuracy, thus requiring an adjustment. A message is also displayed in the Status area at the bottom o

f the screen, informing you to run the adjustment. When an adjustment is required,

all waveform playout is inhibited.

eduction

Jitter R

Jitter Reduction limits the resolution setting of the Sample Rate w hen using the internal clock or an external reference.

Clock Out Click to enable the Clock Out signal. The Clock Out signal is based on the Sample Rate and

you synchronize the AWG to your system or DUT, or to synchronize multiple AWGs.

helps

When enabled, the actual clock frequency is reported.

Clock Out is not available when the clock source is set to Clock In, External Variable.

Sync Clock Out Click to enable the Sync Clock Out signal.

ync C lock Out signal is 1/80

The S

of the S ample clock and helps you synchronize the AWG

to your system or DUT, or to synchronize multiple AWGs.

xxx

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 75

Working with the AWG Clock and Reference Sources

76 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Clock and sync outputs

Clock and sync outputs

The Clock Out and Sync Clock Out signals are provided to help you synchronize the AWG to your system or DUT, or to synchronize multiple AWGs. Click the box to enable the outputs of either or both of these sign

The Clock Out frequency is a r atio based on the Sample Rate setting. The Clock Out readout (in the clock setti Clock out is enabled.)

NOTE. The Clock Out frequency will free-run if using an external variable reference and the instrument loses lock with the signal. Lock can be lost if there is no valid signal applied to the reference input or the actual signal frequency is different than the value entered in the Reference In freq dialog box.

The Sync Clock Out frequency is derived from Sample Clock through a 1/80 divider.

NOTE. You should disable these outputs when not in use, to reduce the potential for creating unwanted noise.

al outputs.

ngs panel) provides the actual clock out frequency. (The frequency value is shown only when

Trigger control

Triggers control when a waveform starts to output, after the Play button has been pressed. A trigger event is necessary when the instrument’s Run Mode is set to a triggered condition.

Trigger control (Run mode is accessed from the AWG Home tab and is unique for each channel unless the Run modes have been

led together.

coup

Run mode

Triggers (Run mode) control when a waveform is output after the Play button is pressed. Two channel instruments can use independent Run modes and trigger events.

(see page 77), Trigger Source (see page 78), Trigger coupling (see page 79))

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 77

Working with the AWG Trigger control

Run mode

Run mode (accessed from the AWG Home tab) has three sele ctions:

Continuous: Waveform play out starts when the Play button is pressed, without the need for a trigger event. The waveform continues to repeat until stopped by the user.

Trig gere d: Waveform play out starts when the trigger event occurs. Waveform playout stops after one complete waveform cycle and remains stopped until the next trigger event. Using a triggered run mode requires that you select the trigger source. See Trigger source

(see page 78).

Waveform playout cannot be retriggered until the current waveform playout completes an entire cycle. For two channel instruments, both waveforms must complete a cycle.

Trig ’d Con t.: Waveform playout starts when a trigger event occurs. Once a trigger event occurs, waveform plays continuously until stopped by the user. (Retriggering is not required nor has any effect.) Using a triggered run mode requires that you select the trigger source. See Trigger source

page 78).

Trigger source

The trigger source selection only appears when the Run mode is set to a triggered mode (Triggered or Trig’d Cont.).

Trigger source

(see

The trigger sources available include:

78 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Trigger input settings

A: The A External Trigger input (rear-panel Trigger Inputs) is used as the source for a trigger event. The A Force Trigger button is also active.

B: The B External Trigger input (rear-panel Trigger Inputs) is used as the source for a trigger event. The B Force Trigger button is also active.

Internal: An internally generated trigger signal is used as the trigger source. (The A and B Force Trigger buttons are not active.)

When using a trigger event to start the waveform playout, you need to deﬁne the trigger parameters. Use the Trigger setup window (located in the Setup tab). See Trigger input settings

(see page 79).

NOTE. For t trigger source for both channels by coupling the triggers together.

wo channel instruments, each channel can use an independent trigger source or use the same

Trigger coupling

Instruments with two channels have the ability to couple the Run mode and Trigger source together, allowing you to change settings to both channels simultaneously.

When triggering is initially linked, the Channel 1 settings overwrite the Channel 2 settings. But once coupled, you can use either channel to make changes.

Trigger input settings

When using a trigger source (Internal or External), you need to deﬁne the signal requirements to cause a trigger event.

Use the Trigger setup screen

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 79

(located in AWG Setup tab).

Working with the AWG Trigger input settings

Trigger

The Streaming tab is only available on the AWG70000B series.

Internal Trigger

When the trigger selection is set to Internal (AWG Home screen), the trigger event is generated from the instrument’s internal clock.

The only setting for the internal trigger is the interval (1 μs to 10 s) at which the trigger signal is generated.

External Trigger

The instrument has two external trigger inputs, A and B. Use the Trigger screen to deﬁne the trigger conditions of each input.

Two channel instruments can use independent trigger sources for each channel.

80 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Trigger input settings

Item Description

Level

Polarity

Trigger Level sets the threshold that the external trigger input signal must cross for a trigger event to occur

Select values from –5 V to 5 V.

Trigger Polarity

for a trigger event to occur.

sets which slope to use (rising or falling edge) of the external trigger input signal

Impedance

Timing

Trigger pol

r Impedance sets the impedance of the External Trigger inputs to match the impedance

Trigge of the external source driving the external trigger input signal.

See Rear-panel connectors

Trigger Timing is the trigger timing speed in relation to the frequency of the sampling clock speed.

er timing is selectable between Fast or Slow for when using an external input:

Trigg

Fast (Asynchronous) triggering provides the smallest delay between the trigger event and

starting the waveform playout.

arity

(see page 206).

(Synchronous) triggering slows the trigger clock rate to provide a longer setup time,

Slow

making it easier to align timing events between equipment.

-channel instruments allow this selection f or both the A and B external trigger inputs.

Two

Single-channel instruments allow this selection only for the A external trigger input.

See Trigger timing

gger timing.

tri

xxx

(see page 82) for more information about asynchronous and synchronous

PatternJumpInput

When using Sequencing, the Pattern Jump Input is available as a trigger source.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 81

Working with the AWG Trigger timing

Item Description

Strobe Edge Sets which slope to use ( rising or falling edge) of the pattern jump strobe input signal for a trigger

connector.

Jump on strobe always

xxx

event to occur

A jump based on a pattern requires two things: a strobe edge and an address change at the Pattern Input

With this checked, a jump always occurs on the strobe edge.

See Creating a Pattern jump (see page 120) for more information.

Trigger timing

The Timing control in the Trigger setup window allows you to select the method most suited to your application.

Fast (Async) is appropriate for situations like these:

You do not need trigger timing uncertainty better than ± (sample clock period) / 2.

You are using a single trigger event to start AWG output.

You want to minimize trigger uncertainty without synchronizing the AWG to your external system or device under test (DUT).

Slow (Sync) is useful if your application is like one of these examples:

You need to minimize trigger uncertainty and have the ability to synchronize your trigger signal to the AWG clocks using one or more of these signal inputs/outputs: Reference In, Reference Out, Clock Out, or Sync Clock Out.

You are using a trigger signal from your system to the AWG to achieve tight alignment between the AWG and your external system.

You are synchronizing m ultiple AWGs.

To understand the difference b etween these choices, you need some background on the AWGs internal clock signals.

82 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Trigger timing

The internal sample clock signal is what causes the DAC to output waveform samples.

The DAC’s output sample rate is generally a multiple of the sample clock or divided down from thesampleclock.

Thesampleclockisalwaysavaluebetween6.25GHzand12.5GHz,whilethesampleratecanbe anywhere from 1.49 kSamples/s to 50 GSamples/s. (The maximum rate varies by instrument model and options).

The Clock Out signal is the same as the internal sample clock. The Sample Clock is divided by 80 to produce another timing signal; the Sync Clock Out. The Clock Out and Sync Clock Out signals are available

The AWG determines when a trigger event has occurred by comparing the trigger input signal’s voltage level aga rising and falling edges of the Sample Clock signal for Fast trigger timing, and at the rising edge of the Sync Clock O ut signal if Slow trigger timing is selected.

The Sample Clock period for Fast (Async) trigger timingcanbeasshortas40ps(for50GS/ssample rate). If the trigger signal applied to the AWG misses its setup/hold w indow by being either too early or too late, it will be recognized in the p revious or next cycle, leading to an 80 ps uncertainty for Fast (Async) mode if you do not use one or more of the clock signals to synchronize your trigger events to the AWG sample clock.

on rear-panel of the AWG for use in synchronizing the AWG to your external device or system.

inst the trigger level you have set in the Trigger setup window. This comparison occurs at the

Minimum trigger uncertainty is achieved by using a shared clock and/or reference signals to insure that your trigger event arrives at a consistent location within the selected Trigger Timing clock cycle. The Sample

k period for Slow (Sync) trigger timing is 160 times longer than for the Fast (Async) trigger timing.

Cloc This extra time makes it easier for your system to assert the trigger event within the setup/hold window.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 83

Working with the AWG Adjust skew

Adjust skew

The Skew adjustments is accessed from the Setup tab.

The Skew and delay adjustments dialog screen is used to:

Adjust the relative timing (skew) between the analog channels (two-channel instruments)

Adjust the relative amplitude and phase (interleave) between the two DACs (single-channel instruments only)

Adjust the relative timing (delay) of the marker outputs (for each channel)

Adjust the phase of all output signals relative to the system clock

84 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Adjust skew

Skew adjustments

Channels skew adjust display for two-channel instruments. The Streaming tab is only available on the AWG7000

0B series.

Marker

skew adjust display for single-channel instruments.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 85

Working with the AWG Adjust skew

Analog channel skew adjustments

With multi-channel instruments, the channel outputs might not always be perfectly aligned, due to many factors such as differences in cable lengths.

In the Setup menu, select the Skew tab and then the Analog Channels tab to dis play the channel skew. You can adjust the relative timing of every available channel output within the range of ±100 ps.

NOTE. Adjusting channel skew is best accomplished by viewing the outputs of the channels on an oscillosco

pe while adjusting.

The Streaming tab is only available on the AWG70000B series.

Interleave adjustment (single channe l models only)

Single channel AWG70000 series instruments interleave the two DACs that the instrument uses to create the analog output signal. Interleaving the two DACs increases sampling rates and record lengths.

86 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Adjust skew

The Streaming tab is only available on the AWG70000B series.

The two DACs are clocked 180 ° out of phase from each other. The Interleave adjustments provided allows you to make small adjustments between the outputs of the two DACs.

Always set your Sample Rate before making interleave adjustments.

Marker delay adjustment

The Marker Delay adjustment is accessed from the Skew tab in the Setup tab.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 87

Working with the AWG Adjust skew

Two markers are available for each channel. Use the Channel pull-down list to select which markers to adjust.

Youcanaddupto100psdelaytoeachmarker. Themarkerdelayisreferencedtothechannel’sanalog output.

Signal output phase adjustment

The Phase adjustment for all signal outputs is accessed from the Skew tab in the Setup tab.

hase adjustment allows you to adjust the phase of all signal outputs (except for clocks) to synchronize

The P output signals between multiple instruments. The phase adjustment is relative to the system clock and is adjustable from –10000 ° to 10000 ° (or –2 ns to 2 ns). With the right-click menu, you can change the units for this setting to use either degrees or seconds.

Outputs from the Analog channels, Markers, Flags, and the Sync Out connectors are all affected.

The pha se adjustment is only useful when the instrument is externally triggered.

88 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Working with the AWG Aux Out setup

Aux Out setup

The Aux Out tab allows you to conﬁgure the Auxiliary output connectors on the rear panel. (These are labeled F

lag Outputs on the AWG70000A series.)

NOTE. The Aux Out tab is disabled and Flags are not available if Synchronization is enabled and the instrument type is set to Master. Refer to Synchronization

The number of available Auxiliary outputs is dependent on the instrument model.

AWG70 0

AWG70002: 1 – 8

Each output can be deﬁnedasaFlag(A–D)orasaTimer.

When deﬁned as a ﬂag, y ou need to set the source channel (for two channel instrume nts ). Flags are used with the sequencer to provide you the ability to add indicators within the sequence to help identify the state of the sequence. See Sequence ﬂags The

When deﬁned as a timer, the source channel selection is disabled, and the output is simply a timer ou

01: 1 – 4

(see page 123) for more details about ﬂags.

ﬂags are output via the Aux Out connectors.

tput. The timer parameters are set in the Timer tab. See Timer setup

(see page 90) for details.

AWG70000 Series Arbitrary Waveform Generators Printable Help Document 89

Working with the AWG Timer setup

The Streaming tab is only available on the AWG70000B series.

Timer setup

A timer is available that is output via the Aux Output connectors (located on the rear panel).

The speciﬁc Aux Out connector must be conﬁgured to output the timer signal. Refer to Aux Out setup

page 89) for information about the Aux Out connectors and settings.

NOTE. The Aux Output connectors are labeled Flag Outputs on the AWG70000A series.

The Streaming tab is only available on the AWG70000B series.

You can start and stop the timer manually using the Stopped/Running button. The Stopped button changes to Running when the timer is running (manually).

You can also select “Start Timer on Play” to automatically start the timer output each time the instrument is playing a waveform. (The manual control is disabled when in automatic

mode.)

(see

Use the Period ﬁeld to set the timing of the signal. Right click in the ﬁeldtosettheperiodinfrequencyor time.

The period can be set from 1 Hz (1 s) to 100 kHz (10 μs).

90 AWG70000 Series Arbitrary Waveform Generators Printable Help Document

Tektronix AWG70001B, AWG70002B, AWG70001A, AWG70002A User manual

Specifications and Main Features

Frequently Asked Questions

User Manual