xx
80SJNB
ZZZ
Jitter, Noise, BER, and Serial Data Link Analysis Software
Printable Online Help
*P077064100*
077-0641-00
80SJNB
Jitter, Noise, BER, and Serial Data Link Analysis Software
ZZZ
PrintableOnlineHelp
www.tektronix.com
077-0641-00
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. a nd 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.
TEKPROBE, and FrameScan are registered trademarks of Tektronix, Inc.
This document supports 80SJNB software version 3.0.X and greater for the DSA8300 only.
Contacting Tektronix
Tektroni
14150 SW Karl Braun Drive
P. O . B o x 5 0 0
Beaverton, OR 97077
USA
x, Inc.
For pro
duct information, sales, service, and technical support:
In North America, call 1-800-833-9200.
Worldwide, visit www.tektronix.com to find contacts in your area.
Table of Contents
Welcome
Welcome to the 80SJNB Jitter, Noise, BER, and Serial Data Link Analysis Software .... .. . .. .. . .. .. . .. .. 1
Preface
Related Documentation ..... ................................ .................................. ..................... 3
GPIB Info
Relevant Web Sites................................................................................................. 3
Conventions ................ .................................. ................................ ....................... 4
Types of Online Help Information............... ................................ ................................. 4
Online Help Use ......................... ................................ .................................. ......... 5
Feedback...................... ................................ ................................ ....................... 6
Getting Started
Product Description ................................. .................................. ............................. 7
Requirements and Restrictions .................................................................................... 7
Accessories....... ................................ ................................ .................................. . 8
Connecting to a Device Under Test (DUT)... ................................ ................................ ... 8
Deskewing Probes and Channels .......... .................................. ................................ ..... 8
The Importance of Jitter and Noise Separation . .. .. .. . .. .. . .. .. . .. .. . .. .. .. . .. .. . .. .. . .. .. . .. .. .. . .. .. . .. .. . .. .. 9
Jitter and Noise Separation Methods .. . .. ... .. . .. . .. . .. ... .. . .. . .. ... .. . .. . .. . .. ... .. . .. . .. . .. .. . .. . .. . .. . .. .. . .. 9
rmation ........... .................................. ................................ ..................... 3
Table of Contents
Operating Basics
About Operating Basics........................................................................................... 11
General Information
Starting the 80SJNB Application ......... ................................ .................................. 11
Returning to the Oscilloscope Application. .. . .. . .. .. . .. . .. . .. . .. ... .. . .. . .. . .. ... .. . .. . .. . .. ... .. . .. . .. . .. 12
Returning to the 80SJNB Application ...................................................................... 13
Minimizing and Maximizing the Application ............. ................................ ................ 13
Exiting the Application. . .. . .. . .. .. . .. . .. . .. .. . .. . .. . .. . .. .. . .. . .. ... .. . .. . .. . .. .. . .. . .. . .. ... .. . .. . .. .. . .. . .. 14
Installation Directory ......................................................................................... 14
File Name Extensions ...... ................................ ................................ .................. 15
File Menu .......................... .................................. ................................ .......... 16
View Menu .... ................................ ................................ ................................ 17
Setup Menus................................................................................................... 17
Oscilloscope Settings. .. . .. . .. .. . .. . .. .. . .. . .. . .. ... .. . .. . .. .. . .. . .. ... .. . .. . .. . .. .. . .. . .. .. . .. . .. ... .. . .. . .. . 18
About the Results ............................................................................................. 18
Clearing Results....... .................................. ................................ ...................... 19
About Plotting. .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . 19
80SJNB Printable Online Help i
Table of Contents
Navigating the User Interface
Windows User Interface
80SJNB User Interface Information
Setting Up the Application for Analysis
About Configuring the Application for Analysis.................. .................................. ...... 24
Configuring Sources
Signal Path Conditioning
About Analysis Settings. . .. .. . .. . .. ... .. . .. . .. . .. .. . .. . .. .. . .. . .. . .. . .. .. . .. . .. .. . .. . .. . .. .. . .. . .. . .. .. . .. . .. 43
About Measurements
Steps to Acquire Data ........ ................................ .................................. .............. 47
Save and Recall Setup Files
Saving and Recalling Setup Files . .. . .. . .. .. . .. . .. . .. .. . .. . .. . .. .. . .. . .. .. . .. . .. . .. .. . .. . .. . .. .. . .. . .. .. . .. . 48
About the User Interface .......... ................................ ................................ ...... 19
User Interface Items Definitions.. . .. . .. ... .. . .. . .. . .. .. . .. . .. .. . .. . .. . .. .. . .. . .. . .. .. . .. . .. .. . .. . .. . .. . 20
About Navigation ........................................................................................ 21
About the 80SJNB Tool Bar ............................................................................ 22
MATLAB User Interface.............................. ................................ .................. 24
About Acquiring Data................................................................................... 25
Selecting Clock Recovery............................................................................... 26
Selecting Phase Reference .............................................................................. 28
Selecting the Data Pattern............................................................................... 29
Selecting the Signal Conditioning.. . .. . .. . .. . .. ... ... .. . .. . .. . .. ... .. . .. . .. . .. . .. .. . .. . .. . .. . .. .. . .. . .. 29
Selecting the Pattern Clock ....... ................................ .................................. .... 30
Selecting the Source ..................................................................................... 30
About Spread Spectrum Clocking (SSC).............................................................. 32
About Serial Data Link Analysis (SDLA) Signal Path Settings .................... ................ 33
Setting Filter Conditions ... . .. .. . .. . .. . .. . .. .. . .. . .. .. . .. . .. . .. . .. .. . .. . .. ... .. . .. . .. . .. .. . .. . .. . .. .. . .. 34
Channel
Setting Channel Conditions . .. .. . .. . .. . .. .. . .. . .. . .. ... .. . .. . .. .. . .. . .. . .. ... .. . .. . .. .. . .. . .. . .. . .. 35
Frequency Domain.................................................................................. 35
Time Domain ...................... ................................ .................................. 37
Equalizer
About the Equalizer................................................................................. 37
Equalizer Taps ....................................................................................... 38
Saving and Lo
Taking Measurements ................................................................................... 44
Displaying Measurements............................................................................... 44
Jitter Measurement Definitions ......................................................................... 45
Dual Dirac Measurement Definitions........ .................................. ........................ 45
Noise Measurement Definitions .. . .. . .. . .. .. . .. . .. .. . .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. . .. .. . .. . .. .. . .. . . 46
SSC Modulation Measurement Definitions ........................................................... 46
Sample Count................................. .................................. .......................... 47
ading Taps................. ................................ .......................... 42
ii 80SJNB Printable Online Help
Table of Contents
Saving a Setup File ........................................................................................... 48
Recalling a Saved Setup File ... .. . .. . .. . .. .. . .. . .. .. . .. . .. . .. .. . .. . .. . .. .. . .. . .. .. . .. . .. . .. .. . .. . .. . .. .. . .. . 48
Save and Recall Data Files
Saving and Recalling Data Files . .. . .. . .. . .. .. . .. . .. .. . .. . .. . .. .. . .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. . .. .. . .. . . 49
Saving a Data File .. .................................. ................................ ........................ 49
Recalling a Saved Data File . .. . .. . .. ... .. . .. . .. . .. ... .. . .. . .. . .. .. . .. . .. . .. . .. .. . .. . .. . .. . .. .. . .. . .. . .. . .. .. 49
Working with Plots
About Working with Plots ....... ................................ ................................ ............ 50
Plot Type Definitions ......................................................................................... 50
Selecting and Viewing Plots ................................................................................. 51
Examining Plots............................................................................................... 52
Exporting Plot Data
About Exporting Plot Files.............................................................................. 52
Copying Plot Images .................................................................................... 53
Exporting Raw Plot Data...................................... ................................ .......... 54
Plot Types
Jitter Plots .. . .. .. . .. . .. .. . .. . .. . .. .. . .. . .. . .. .. . .. . .. . .. .. . .. . .. . .. .. . .. . .. .. . .. . .. . .. . .. .. . .. . .. .. . .. . .. . . 56
Eye Plots .......... ................................ .................................. ...................... 57
Noise Plots........ .................................. ................................ ...................... 59
Pattern Plots .............................................................................................. 60
SSC Plot................................................................................................... 60
Working with Numeric Results ................ ................................ .................................. 61
An Application Example.......................................... ................................ ................ 63
Parameters
About Application Parameters ............. .................................. ................................ .... 69
Analysis Settings ............ ................................ ................................ ...................... 69
Acquisition Settings .. . .. . .. . .. .. . .. . .. . .. . .. .. . .. . .. . .. . .. .. . .. . .. . .. . .. ... .. . .. . .. . .. ... .. . .. . .. . .. ... .. . .. . .. . .. 70
Signal P ath Settings .. . .. . .. .. . .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. . .. .. . .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . 71
Remote Control
Remote Control Introduction..................... ................................ ................................ 73
GPIB Reference Materials.. ................................ .................................. .................... 73
Programming Tips................................................................................................. 74
Variable:Value Commands
Syntax...... ................................ .................................. ................................ .. 75
Arguments and Queries ...................................................................................... 76
Variable:Value Results Queries.............................................................................. 82
GPIB Commands Error Codes .............................................................................. 84
Programming Examples
Programming Examples Introduction ...................................................................... 84
Program Example: Configure and Operate 80SJNB...................................................... 85
80SJNB Printable Online Help iii
Table of Contents
Program Example: Measuring Jitter in Presence of SSC . .. .. . .. . .. .. . .. . .. . .. .. . .. . .. . .. .. . .. . .. . .. .. . .. 87
Program Example: Compensating for Signal Path Impairments with Equalization................... 89
Algorithms
About Measurement Algorithms................................................................................. 93
Test Methodology ................. ................................ ................................ ................ 93
Correlations
Correlati
Index
on to Real-Time Oscilloscope Jitter Measurements . . .. . .. .. . .. . .. ... .. . .. . .. . .. .. . .. . .. . .. .. . .. . .. . 95
iv 80SJNB Printable Online Help
Welcome Welcome to the 80SJNB Jitter, Noise, BER, and Serial Data Link Analysis Software
Welcome to the 80SJNB Jitter, Noise, BER, and Serial Data Link Analysis
Software
The 80SJNB analysis software enhances the capabilities of the DSA8300 Digital Serial Analyzer. Two
versions are available: 80SJNB Essentials and 80SJNB Advanced.
80SJNB Essentials provides the following features:
Performs advanced jitter and noise analysis (RJ, DDJ, PJ, DCD, TJ@BER, and RN, DDN(high) and
DDN(low), TN@BER, vertical and horizontal eye opening at BER)
Acquires complete pattern waveform at 100 Samples/UI
Performs random and deterministic jitter analysis including BER estimation
Isolates and measures crosstalk in form of bounded uncorrelated jitter (BUJ)
Displays
Displays 2-D eye diagrams (correlated eye, probability density function (PDF) eye, and bit error
rate (BE
Saves complete acquisition results to a data file
Analysis of jitter, noise, and BER in the presence of spread spectrum clocking (SSC)
80SJNB Advanced adds:
Signal path emulation, allowing you to emulate the environment your signal encounters from the
transmitter to the receiver. Feature include:
What do you want to do?
Read the product description
Go to Operating Basics
results graphically including histograms, spectra, and bathtub curves
R) eye)
Supports FFE and DFE equalization
Allows user-defined arbitrary filters (use for de-embedding and other applications)
ports channel emulation (TDR/TDT and S-parameter based channel descriptions)
Sup
Other features commonly known as SDLA (Serial Data Link Analysis)
(see page 7).
(see page 11).
80SJNB Printable Online Help 1
Welcome Welcome to the 80SJNB Jitter, Noise, BER, and Serial Data Link Analysis Software
2 80SJNB Printable Online Help
Preface Related Documentation
Related Documentation
The following links contain other information on how to operate the oscilloscope and applications:
Relevant Web Sites (see page 3)
GPIB Information (see page 3)
Types of Online Help Information (see page 4)
GPIB Infor
For infor
refer to the following items:
mation
mation on how to operate the oscilloscope and use the application-specific GPIB commands,
The onli
commands to control the oscilloscope.
The 80SJ
ne programmers guide for your oscilloscope can provide details on how to use GPIB
NB remote control functions
Relevant Web Sites
The Tektronix Web site offers the following information:
Understanding and Characterizing Jitter Primer, literature number 55W-16146-x.
Jitter analysis details on the www.tektronix.com/jitter Web site
Information on fixture de-embedding, channel emulation, equalization, pre-emphasis, and de-emphasis
on the www.tektronix.com/sdla
You can also find useful information in the Fibre Channel - Methodologies for Jitter and Signal Quality
Specification – MJSQ on the www.t11.org
(see page 73)
Web site
Web site.
80SJNB Printable Online Help 3
Preface Conventions
Conventions
Online help topics use the following conventions:
The terms “80SJNB application” or “application” refer to the 80SJNB Jitter, Noise and BER Analysis
software.
The term “oscilloscope” or “TekScope” refers to the product on which this application runs.
The term “select” is a generic term that applies to the two mechanical methods of choosing an option:
with a mouse or with the Touch Screen.
The term “DUT” is an abbreviation for Device Under Test.
When steps require a sequence of selections using the application interface, the “>” delimiter marks
each transition between a menu and an option. For example, one of the steps to recall a setup file
would appear as File > Recall Settings.
Types of Online Help Information
The online help contains the following topics:
Getting Started topics briefly describes the application and its requirements.
ting Basics topics cover basic operating p rinciples of the application. The sequence of topics
Opera
reflects the steps you perform to operate the application.
meters topics cover the Analysis and Configuration default settings.
Para
Application Examples topics show how to use jitter measurements to identify a problem with a
eform. This should give you ideas on how to solve your own measurement problems.
wav
GPIB Command Synta x topics contain a list of arguments and values that you can use with the remote
mmands and their associated parameters.
co
See Also:
Using Online Help (see page 5)
4 80SJNB Printable Online Help
Preface Online Help Use
Online Help Use
Online help has many advantages over a printed manual because of advanced search capabilities. The
main (opening) Help screen shows a series of book icons and three tabs along the top menu, each of
which offers
Contents tab - organizes the Help into book-like sections. Select a book icon to open a section;
select any o
Index tab - enables you to scroll a list of alphabetical keywords. Select the topic of interest to display
the corres
Search tab - enables you to search the entire help contents for keywords. Select the topic of interest to
display t
or screen shots.
NOTE. Blue-underlined text indicates a hyperlink to another topic. For example, select the blue text to
jump to the topic on Feedback to Tektronix.
a unique mode of assistance:
f the topics listed under the book.
ponding help page.
he corresponding help page. Search results do not include text contained within illustrations
(see page 6)
TIP. When you use a mouse, the normal cursor changes to a link cursor when over an active hyperlink.
80SJNB Printable Online Help 5
Preface Feedback
Feedback
Tektronix values your feedback on our products. To help us serve you better, please send us suggestions,
ideas, or other comments you may have about your application or oscilloscope. Send your feedback to
techsupport
Please be as specific as possible and include the following information:
General Information
@tektronix.
Oscillosc
Module and probe configuration. Include model numbers and the channel/slot location.
Serial data standard.
Signaling rate.
Pattern type and length.
Your name, company, mailing address, phone number, FAX number.
NOTE. Please indicate if you would like Tektronix to contact you regarding your suggestion or comments.
ope model number, firmware version number, and hardware/software options, if any.
Application-Specific Information
80SJNB Software version number.
Description of the problem such that technical support can duplicate the problem.
If possible, save the oscilloscope waveform fileasa.wfmfile.
ossible, save the 80SJNB data to a .mat file (File > Save Data).
If p
If possible, save the 80SJNB and oscilloscope settings to a .stp file (File > Save Settings).
Once you have gathered this information, contact technical support by phone or through email. If using
email, be sure to enter “80SJNB Problem” in the subject line, and attach the .stp and .wfm files.
6 80SJNB Printable Online Help
Getting Started Product Description
Product Description
The 80SJNB software application enhances the capabilities of the DSA8300 Digital Serial Analyzer by
providing Jitter, Noise, and BER analysis (Essentials) and features for de-embedding the fixture, channel
emulation, a
You can use this application to do the following tasks:
Jitter and noise analysis from 0.5 Gb/s to greater than 60 Gb/s
Jitter and noise separation (see the Importance of Jitter and Noise Separation (see page 9))
Perform random and deterministic jitter and noise analysis, and TJ@BER, TN@BER and BER
estimation
Isolate jitter and noise due to crosstalk, and make random and deterministic estimations in the
presence of crosstalk
Show results as numeric and graphical displays
Display 2-D eye diagrams (Correlated Eye, Probability Density Function (PDF) Eye, and Bit Error
Rate (BER) Eye)
nd FFE/DFE equalizer support (Advanced).
Supports FFE and DFE equalization
Allows user defined linear arbitrary filters
Supports Channel Emulation (from TDR/TDT and S-parameter based channel descriptions)
Analysis of jitter, noise, and BER in the presence of Spread Spectrum Clocking (SSC)
Save results to a data file
Save and recall instrument setups
See Also:
Review Requirements and Restrictions (see page 7)
Requirements and Restrictions
Operating system. Microsoft Windows 7 Ultimate (32 bit) operating system operating on the DSA8300
Digital Serial Analyzer oscilloscope.
ADVTRIG option. 80SJNB requires the Advanced Trigger option (ADVTRIG). Contact Tektronix about
purchasing this option.
82A04 Phase Reference module. For acquisition in the presence of Spread Spectrum Clocking (SSC), this
application requires that the sampling oscilloscope be equipped with a Tektronix 82A04 Phase Reference
80SJNB Printable Online Help 7
Getting Started Accessories
module. The 82A04 also lowers the jitter floor to 200 fs. Contact Tektronix about purchasing the module
for your sampling oscilloscope.
Keyboard and mouse. You must use a keyboard to enter names for some save and export operations. A
mouse is not required but simplifies screen selections.
Accessories
There are no standard accessories for this product. Refer to the product data sheet available on the
Tektronix Web site for information on optional accessories relevant to your application.
A second monitor connected to the TekScope is recommended for simultaneous viewing of the oscilloscope
screen and the 80SJNB application screen.
Refer to Requirements and Restrictions
application.
(see page 7) for additional items required to use the 80SJNB
Connecting to a Device Under Test (DUT)
You can use any compatible probe or cable interface to connect your DUT and the instrument.
WAR NING. To avoid electric shock, remove power from the DUT before attaching probes. Do not touch
exposed conductors except w ith the properly rated probe tips. Refer to the probe manual for proper use.
Refer to the General Safety Summary in your oscilloscope manual.
See Also:
Deskewing Probes and Channels (see page 8)
An Appl
ication Example
(see page 63)
Deskewing Probes and Channels
To be sure of accurate results for two-channel measurements, it is important to first deskew the probes
or cables and oscilloscope channels before you take measurements.
NOTE. Deskewing is performed from the TekScope application, not from the 80SJNB application. Refer to
the DSA8300 Quick Start User Manual and the DSA8300 Online Help for information and procedures for
deskewing probes and channels.
8 80SJNB Printable Online Help
Getting Started The Importance of Jitter and Noise Separation
The Importance of Jitter and Noise Separation
Jitter is an important characteristic to analyze for serial data links, but the analysis should not stop at just
jitter. To properly evaluate a data link, it is necessary to analyze both jitter and noise.
Two components need to be added to the traditional jitter analysis:
The noise/vertical eye closure should be considered in a manner very similar to that of jitter/horizontal
eye closure.
Jitter m easurements based on the threshold crossing of a finite-speed transition should include vertical
noise influence.
Depending on the magnitude of the vertical noise and the transient response of the transmitter and
transmission channel, the magnitude of this influence can vary widely. Ultimately the jitter and noise
analysis allows for accurate BER projections for the targeted communication link.
For information on the separation and analysis techniques used for jitter and noise analysis, download the
Tektronix white paper Tektronix CSA/TDS8200 Jitter Analysis Application: Jitter and Noise Analysis,
BER Estimation Descriptions with 80SJNB. Additional jitter analysis and timing analysis information is
available at www.tek.com/jitter.
Jitter and Noise Separation Methods
Bit error rates (BER) of a serial data stream are impacted by both jitter and noise. An accurate
decomposition of jitter and noise in the sources of impairments is critical to correctly estimate the signal
path behavior at larger BER. The jitter and noise maps are critical to help debugging the devices under test.
Since jitter and noise analysis follows a similar path, this discussion covers just the jitter decomposition.
80SJNB Printable Online Help 9
Getting Started Jitter and Noise Separation Methods
The basic separation of jitter in data-dependent and uncorrelated elements is accomplished by two targeted
acquisition steps:
Correlated Acquisition Step: the application filters a high resolution acquisition of the full pattern
to eliminate the uncorrelated elements. The analysis of the filtered pattern yields the data dependent
characteris
Uncorrelated Acquisition Step: the uncorrelated e lements of jitter are isolated by acquiring on well
defined sing
acquired in the uncorrelated acquisition step is then further analyzed to isolate random unbounded
components from the bounded deterministic components. This extended analysis is critical to help
predict long term behavior of the DUT.
Historically only spectral separation was used for separation (available still as the Spectral (Legacy)
analysis method). This method improperly qualifies certain complex bounded uncorrelated components as
unbounded, which inflates the random jitter (RJ) measurement result.
Spectral separation with isolation of bounded uncorrelated jitter (Spectral + BUJ) works by also
analyzing the cumulative distribution function (CDF) of the uncorrelated non periodic jitter data. In
the spectral separation of Periodic Jitter from the Random Jitter, the distinct spectral lines are removed
from th
jitter components, PJ. In the legacy method, the spectral method evaluated the remaining spectral data
as Random Jitter (RJ).
e frequency domain representation of the global uncorrelated jitter data to quantify the periodic
tics, such as Data Dependent Jitter (DDJ) and Duty Cycle Distortion (DCD).
le spots in the pattern, thus eliminating the dependency on the pattern itself. The data
The presence of complex bounded uncorrelated impairments (for example, originating from crosstalk)
requires significant additional steps to isolate the bounded, uncorrelated jitter (BUJ) from the periodic jitter
(PJ), nonperiodic jitter (NPJ), and random jitter (RJ) components.
The CDF analysis is performed in two steps: before a nd after the spectral separation that identifies the
periodic spectral components. The first analysis step yields the total bounded uncorrelated jitter, while the
second analysis step yields the nonperiodic elements, and finally the random jitter components.
A parallel analysis track develops the noise map, and a combination of the two analysis tracks characterizes
the behavior of the link in terms of bit error rate (BER).
10 80SJNB Printable Online Help
Operating Basics About Operating Basics
About Operating Basics
These topics cover the following tasks:
Navigating the user interface (see page 21)
User interface information (see page 19)
Using oscilloscope functions (see page 18)
Setting up the application (see page 24)
Viewing the measurement results as plots (see page 19)
Exporting Plot Files (see page 52)
Saving (see page 48) and recalling (see page 48) setup files
ing
Saving (see page 49) and recall
What do you want to do?
Start the 80SJNB Application (see page 11)
(see page 49) data files
See Also:
File Name Extensions (see page 15)
File Menus (see page 16)
Starting the 80SJNB Applicatio
There are several ways to start
If the TekScope application is minimized, double-click the 80SJNB application icon on the Windows
desktop to start the 80SJNB application.
If the TekScope application is running and open, select Applications > 80SJNB.
the 80SJNB application.
n
In Windows, select Start > All Programs > Tektronix Applications > 80SJNB > 80SJNB.
80SJNB Printable Online Help 11
Operating Basics Returning to the Oscilloscope Application
TIP. With a second monitor connected to the TekScope, you can move the 80SJNB application display to
the second monitor, allowing you to view both screens at the same time.
See Also:
Returning to
Returning to the Oscilloscope Application (see page 12)
the 80SJNB Application
(see page 13)
Returning to the Oscilloscope Application
The 80SJNB application fills the entire screen and hides the TekScope application. To return to the
TekScope display, click the Back to Scope button
You can also minimize the 80SJNB application or exit the 80SJNB application entirely.
See Also:
Minimizing and Maximizing the Application (see page 13)
Exiting the Application (see page 14)
in the toolbar.
12 80SJNB Printable Online Help
Operating Basics Returning to the 80SJNB Application
Returning to the 80SJNB Application
The TekScope application fills the entire screen. If the 80SJNB application is already running but the
TekScope application is displayed on top, bring the 80SJNB application to the front using one of the
following me
Click the App button on the TekScope toolbar.
Select Applications > Switch to 80SJNB.
thods.
TIP. If you have a keyboard attached, you can switch between running applications by pressing the Alt
+ Tab keys.
Minimizing and M aximizing the Application
To minimize the application to the Windows task bar, select the command button in the application
bar.
menu
To maximize the application, select the minimized application from the Windows task bar. Alternately, if
have a keyboard attached, switch between displayed applications by pressing Alt + Tab keys.
you
80SJNB Printable Online Help 13
Operating Basics Exiting the Application
Exiting the Application
To exit the application, select File > Exit or the command button in the application menu bar.
Installation Directory
The 80SJNB software is installed in the following directory:
C:\Progra
Save and Recall Directory
The directory structure for saving and recalling setup and data files and exporting data is:
The default user name is:
See Als
File Name Extensions (see page 15)
m Files\TekApplications\80SJNB
C:\User
Tek_Local_Admin
s\<user name>\Documents
o:
14 80SJNB Printable Online Help
Operating Basics File Name Extensions
File Name Extensions
Extension Description
.bmp
.csv
.stp
.jpg
.mat
.png
.txt
.flt 80SJNB application filter file
.tap
.wfm File that defines time domain waveforms or a frequency domain 1-port S-parameter (created
.s1p
.s2p
.s4p
xxx
File that uses a bitmap format
File that uses a comma separated value format
80SJNB application setup file
File that uses a joint photographic experts group format
File that uses native MATLAB binary format to store data acquired by 80SJNB
File that uses a portable network graphics format
File that uses an ASCII format
80SJNB application equalization tap file
by IConnect) for channel emulation
80SJNB
Files
accepts both DSA8300 and IConnect .wfm files
that define 1-port, 2-port, and 4-port frequency domain S-parameters
80SJNB Printable Online Help 15
Operating Basics File Menu
File Menu
The File menu lets you save and recall application setups, data files, and recently accessed files.
CAUTION. Do not edit a setup file or recall a file that was not generated by the application.
Menu item Description
Save Settings Saves the current application settings in a .stp file
Recall Settings Browse to select an application setup (.stp) file to recall; restor es the
application and os
Save Data Saves the current
Saving is disabled if there is no acquired data to save or an acquisition is
now in process
Recall Data
Export Waveform Acquired exports the raw acquired pattern before processing of the data
Print Prints the displayed plots and the detailed statistics list
Print to File
Exit Exits the application
xxx
Recall a saved data file for analysis
All plots and res
Recalling is disabled if an acquisition is now in process
Correlated exports the acquired waveform after filtering out the
uncorrelated c
Creates a file of the displayed plots and a detailed statistics list
See Also:
cilloscope to the values saved in the setup fi le
acquired data in a .mat file for later analysis
ults are based on the recalled data
omponents
About the 80
SJNB Tool Bar
(see page 22)
Saving a Setup File (see page 48)
Recalling a Saved Setup File (see page 48)
SavingaDataFile(see page 49)
Recalling a Saved Data File (see page 49)
About Exporting Plot Files (see page 52)
16 80SJNB Printable Online Help
Operating Basics View Menu
View Menu
The View menu lets you configure the display of plots and/or numerical data.
Menu item Description
1-up Displays a single plot on the screen
2-up Displays two plots on the screen
4-up
Plots
Summary - SSC Displays the summary SSC numeric data below the plot
Summary - Signal Path Displays the summary Signal Path numeric data below the
Full Numeric Results
xxx
See Also:
Displays the maximum of four plots on the screen
Hides all numeric data, expanding the displayed plot(s) to fill
the entire screen
display(s)
plot display(s)
Displays the complete list of numeric data with plots
displayed
About the 80SJNB Tool Bar (see page 22)
Setup Menus
The Setup menus provide access to the various configuration menus.
Menu item Description
Acquisition Displays the Acquisition setup dialog screen to select and
Signal Path Displays the Signal Path dialog screen to define the signal
Analysis Displays the Analysis dialog screen to change settings that
Default Setup Returns the Acquisition, Signal Path, and Analysis settings
xxx
About the 80SJNB Tool Bar (see page 22)
configure the source for measurements and control key
oscilloscope setups
path characteristics to simulate the actual conditions your
signal may encounter
affect how measurements are made and displayed
to their default values
See About Application Parameters
default settings for each configuration menu
(see page 69) to view the
80SJNB Printable Online Help 17
Operating Basics Oscilloscope Settings
Oscilloscope Settings
You should return the TekScope to its default state before launching the 80SJNB Acquisition dialog box.
All other acquisitions and math waveforms should be off, and all measurements, waveform databases,
masks, and hi
oscilloscope UI to successfully acquire data with the 80SJNB application. All relevant oscilloscope
settings are accessible using the Acquisition dialog box of the 80SJNB application.
NOTE. Changing oscilloscope settings while the 80SJNB application is acquiring data may cause errors,
unpredictable results, or failure.
To bring the TekScope application to the front of the display, click the Back to Scope button
or minimi
applications if you have a keyboard attached.
See Also:
stograms. You should not have to make changes to the oscilloscope settings from the
ze the 80SJNB application. Alternately, you can use the Alt + Tab keys to switch between
About Configuring the Application for Analysis (see page 24)
Returning to the Application (see page 12)
izing and Maximizing the Application
Minim
About the Results
There are two ways to view analysis results: as numeric data and as graphical plots.
You can log the results data to .csv files for viewing in a spreadsheet, database, text editor or data analysis
program.
See Also:
orking with Results
W
Clearing Results (see page 19)
Exporting Plot Files (see page 52)
(see page 13)
(see page 61)
18 80SJNB Printable Online Help
Operating Basics Clearing Results
Clearing Results
Click the Clear Data button to remove the existing plot displays and results. You may want to clear
the data before acquiring new data or between cycles when the sequence mode is set to Free run.
NOTE. The numeric results and plot files are erased each time a new acquisition cycle is started.
About Plotting
The application displays the results as plots for more comprehensive analysis. Before or after you take
measurements, you can select to display a single plot, two plots or four plots. You can select the type
of data you want to view in each plot window.
See Also
Working with Plots (see page 50)
Plot Type Definitions (see page 50)
About Working with Results (see page 61)
:
About the User Interface
The application uses a Microsoft Windows-based user interface.
NOTE. The TekScope application is hidden when the 80SJNB application is running and not minimized.
80SJNB Printable Online Help 19
Operating Basics User Interface Items Definitions
See Also:
Starting the Application (see page 11)
Minimizing and Maximizing the Application (see page 13)
Exiting the Application (see page 14)
Definitions of the application user interface items (see page 20)
User Interface Items Definitions
Item Description
Area
Box
Browse
Check box
Command button Initiates an immediate action, such as the Start command
Keypad
Menu
Menu bar
Visual frame that encloses a set of related options
Usetodefine an option; enter a value with the Keypad or
a Multipurpose knob
Displays a window where you can look through a list of
directories and files
Use to select or clear an option
button in the Control panel
On-screen keypad that you can use to enter numeric values
All options in the application window (except the Control
panel) that display when you select a menu bar item
Located along the top of the application display and contains
application menus
20 80SJNB Printable Online Help
Operating Basics About Navigation
Item Description
Status bar Line located at the bottom of the application display that
shows the acqu
message
Virtual keybo
Scroll bar Vertical or horizontal bar at the side or bottom of a display
Tool bar
xxx
ard
On-screen keyboard that you can use to enter alphanumeric
strings, such as for file names
area that yo
Located alo
application quick launch buttons
isition status and the latest Warning or Error
u use to move around in that area
ng the top of the application display and contains
About Navigation
The application provides you with several ways to display the results:
The drop-
down menus available in the menu bar allows for screen configuration (one, two, or four
plots, summary or full numeric results table)
The butt
ons in the tool bar allow for screen configuration
The drop-down menus available in the plot display windows allow you to choose from the available
and Copy, Examine, and Export plots
plots,
The status bar at the bottom of the screen contains progress information and displays error conditions
ted
detec
Double clicking on a displayed graph opens the plot in a MATLAB window. MATLAB provides
tional display capabilities such as panning, zooming, data cursors, and 3D rotation. The Examine
addi
button from the drop-down menu of the plot also opens the MATLAB window.
80SJNB Printable Online Help 21
Operating Basics About the 80SJNB Tool Bar
See Also:
Windows User Interface (see page 19)
About the 80SJNB Toolbar (see page 22)
About Configuring the Application for Analysis (see page 24)
About the 80SJNB Tool Bar
The toolbar provides quick access to the most common functions you need to configure the settings, start
the acquisition, and control the numerical and plot displays. Most tasks are also available using the
drop-down lists from the File menu bar.
Acquisition button . Use the Acquisition button to select and configure the source for
measurements and control key oscilloscope setups. Any change in the Acquisition settings clears all
the data. The Acquisition button is disabled during the acquisition and processing cycle.
Signal Path button . Use the Signal Path button t o d efine the signal path characteristics to
simulate the actual conditions your signal may encounter. Changes made in the signal path settings
does not clear the data, only the results. The Signal Path button is disabled during the acquisition
and processing cycle.
Analysis Setup button . Use the Analysis Setup button to change settings that affect how
measurements are made and displayed. Changes made in the analysis settings does not clear the data,
only the results. The Analysis Setup button is disabled during the acquisition and processing cycle.
Free Run On/Off button . Use the Free Run button to select the sequence mode (free run on
or off).
When OFF, the button remains blue and the acquisition and processing cycle completes one pass
over the entire pattern. Off is the default mode.
When Free Run is ON, the button turns green
cycle repeats until stopped. The correlated components are averaged with previous data while the
uncorrelated components are accumulated for increased statistical content. At the completion of each
acquisition cycle, the plots and measurements are updated.
indicating that the acquisition and processing
Free Run mode is recommended when:
There is a doubt that one acquisition cycle is enough. A change in the results indicate that additional
acquisition cycles was needed.
22 80SJNB Printable Online Help
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