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TSW1100 Data Capture Board
Quick Start Guide
August 2005
SLAU155
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2 SLAU155 – August 2005
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Contents
1 Overview ................................................................................................................... 5
2 Setup the TSW1100 .................................................................................................... 7
2.1 Connect to a Texas Instrument’s ADC EVM .................................................................... 7
2.2 Provide Power to the ADC EVM .................................................................................. 7
2.3 Providing Power to the TSW1100 ................................................................................ 7
2.4 Connecting to the USB ............................................................................................. 7
2.5 Launching the TSW1100 Software ............................................................................... 7
3 Capture the ADC Samples, Perform an FFT, and Plot the Results .................................... 9
3.1 Information ........................................................................................................... 9
3.2 Setting Up Remote Control of Instruments ...................................................................... 9
3.3 Select the ADC Under Evaluation ................................................................................ 9
3.4 Configure the Input Waveform (A
3.5 Configure the ADC Sampling Frequency (F
3.6 Configure the TSW1100 Capture ................................................................................. 9
3.7 Acquire Data ....................................................................................................... 10
4 Performing a Dual Channel Capture ............................................................................ 11
4.1 Information ......................................................................................................... 11
4.2 Setting up Remote Control of Instruments ..................................................................... 11
4.3 Select the ADC Under Evaluation ............................................................................... 11
4.4 Configure the Input Waveform (A
4.5 Configure the ADC Sampling Frequency (Fs) conditions .................................................... 11
4.6 Configure the TSW1100 Capture ............................................................................... 11
4.7 Acquire Data ....................................................................................................... 12
) Conditions ................................................................ 9
IN
) Conditions ..................................................... 9
S
) Conditions ............................................................... 11
IN
5 Saving and Recalling Data to a File ............................................................................ 13
5.1 Saving a Data Set ................................................................................................. 13
5.2 Retrieving a Saved Data Set .................................................................................... 13
5.3 Performing a Screen Capture.................................................................................... 13
6 Exiting the Program .................................................................................................. 15
Important Notices ............................................................................................................... 16
SLAU155 – August 2005 Contents 3
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Contents 4 SLAU155 – August 2005
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Chapter 1
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Overview
Texas Instrument’s TSW1100 allows for high-speed digital data capture from Texas Instruments high
speed, high-resolution analog-to-digital converters (ADC). It comes complete with software, allowing the
user to quickly evaluate Texas Instruments ADCs without the need for expensive logic analyzers and
complex analysis routines. The TSW1100 features data capture speeds of up to 140 MSPS and data
capture depths of up to 16 x 1 million points. It can operate in dual-channel mode allowing simultaneous
capture of a dual-channel ADC. Data is transferred via a USB interface allowing easy PC control and it
requires only one power supply for operation. The TSW1100 is compatible with the following Texas
Instruments ADC EVMs: ADS5424, ADS5423, ADS5553, and the TSW1000 (ADS5500). EVM Rev C of
the ADS5500, ADS5541, ADS5542, ADS5520, ADS5521, and the ADS5522 will also be supported.
This guide allows for a quick setup of commonly used functions; such as setup, acquiring data, saving,
and recalling data and performing screen captures. Install the software before using this guide. For more
complete documentation, see the TSW1100 user’s guide.
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Overview 6 SLAU155 – August 2005
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The TSW1100 has a defined bring up procedure. Follow the steps below in order to ensure proper
operation. Not following this procedure could result in improper operation.
2.1 Connect to a Texas Instrument’s ADC EVM
Before connecting an ADC, see the TSW1100 website to view the most up to date ADC EVM compatibility
list. On compatible Texas Instruments ADC EVMs’, connect the right angle digital data output connector to
either J1 or J2. J1 connects to channel 1 of the TSW1100, while J2 connects to channel 2 of the
TSW1100. For an ADC with single-channel data output, it is recommended that you connect to channel 2
of the TSW1100, as it is dedicated for high speed captures.
2.2 Provide Power to the ADC EVM
Follow the ADC EVM user’s guide instructions and power on the ADC EVM.
Chapter 2
SLAU155 – August 2005
Setup the TSW1100
2.3 Providing Power to the TSW1100
You may use either a wall mount transformer that has an output rating of 12 VDC and 500 mA or you can
use a lab power supply that can supply a 12 VDVC to J8 while connecting the return to J9. Texas
Instruments recommends that you set a current limit of 500 mA. Power on the TSW1100.
2.4 Connecting to the USB
With the PC turned on, connect the USB cable from the PC to the TSW1100 USB connector, J10. At this
point, the PC should recognize the TSW1100. To verify, you can go to the Hardware Device Manager and
select USB Devices and ensure the TSW1100 is listed as a USB device. At this point, you will also see
the LED D13 illuminated on the TSW1100 signaling that the device has been configured properly and is
communicating with the PC. This should be the only LED illuminated. If, at this point more than D13 is
illuminated, depress the Reset switch (SW2) on the TSW1100.
2.5 Launching the TSW1100 Software
With the TSW recognized by the hardware device manager, you can run the software package. To run the
program, click on Start -> Program Files -> Texas Instruments -> Texas Instruments ADC Capture Card.
This launches the program window. Initially, the software should display diagnostic info on the FPG
version number in the status window.
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Launching the TSW1100 Software
Setup the TSW11008 SLAU155 – August 2005
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Capture the ADC Samples, Perform an FFT, and Plot the
3.1 Information
This section allows you to capture the raw digital data output from the ADC, perform an FFT, plot the
results, and display the performance of the ADC under evaluation.
3.2 Setting Up Remote Control of Instruments
For the best performance, Texas Instruments recommends using an Agilent 8644 for both the signal
source and the clock source with the appropriate filters. The TSW1100 software automatically controls
these instruments if they are hooked up using GPIB and the Remote Control of Lab Instruments is turned
on in the Equipment Setup tab. You may also change the GPIB address for both the signal generator and
clock generator.
3.3 Select the ADC Under Evaluation
In the top left-hand corner of the user controls, find the pulldown control labeled Texas Instruments chip.
Select the appropriate EVM from the list. Based off this selection, the software automatically updates the
ADC characteristic indicators: number of bits and 2’s compliment.
Chapter 3
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Results
3.4 Configure the Input Waveform (A
Find the control labeled Desired Frequency and change it to the sinusoidal frequency you would like to
provide to the ADC analog input. In its default state and for best ADC performance, the software
calculates a coherent bin based off of a prime integer and it displays it in the frequency indicator. If you
are not using the Remote Control of Lab Instruments feature, then manually set your signal source output
frequency to coincide with the displayed frequency indicator. You also have control over the amplitude of
the signal source; Texas Instruments recommends that you set this to be -1 dBFS of the device under
evaluation.
) Conditions
IN
3.5 Configure the ADC Sampling Frequency (F
Find the control labeled Sampling Frequency and set this to the value at which you want to clock the ADC.
For the best performance, do not set this above the recommended device operating frequency. Set the
clock amplitude by varying the Clock Amplitude control.
3.6 Configure the TSW1100 Capture
With the understanding that J1 connects to channel 1 and J2 connects to channel 2 of the TSW1100, use
the Capture control to select which channel the ADC EVM is connected to. Select the depth of capture by
selecting the acquisition size in the Number of Points control. Texas Instruments recommends that you set
this to 16384 for sinusoidal input evaluation.
) Conditions
S
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Acquire Data
3.7 Acquire Data
At this point you are ready to capture data from the ADC. You can do so by clicking on the red circular
Acquire Data button located below the graph. The button turns green and stay green until the capture is
complete. After it is complete, you will see a FFT plot as well as Capture Statistics and FFT Computations.
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4.1 Information
This section allows you to perform a dual-channel capture from a dual channel ADC, perform an FFT, plot
the results and display the performance of the ADC under evaluation.
4.2 Setting up Remote Control of Instruments
For the best performance Texas Instruments recommends using an Agilent 8644 for both the signal
source and the clock source with the appropriate filters. The TSW1100 software automatically controls
these instruments if they hooked up using GPIB and the Remote Control of Lab Instruments is turned on
in the Equipment Setup tab. You may also change the GPIB address for both the signal generator and
clock generator.
4.3 Select the ADC Under Evaluation
In the top left-hand corner of the user controls, find the pulldown control labeled Texas Instruments Chip.
Select the appropriate EVM from the list. Based off this selection, the software will automatically update
the ADC characteristic indicators: Number of Bits and 2's Compliment.
Chapter 4
SLAU155 – August 2005
Performing a Dual Channel Capture
4.4 Configure the Input Waveform (A
Find the control labeled Desired Frequency and change it to the sinusoidal frequency you would like to
provide to the ADC analog input. In it's default state and for the best ADC performance, the software
calculates a coherent bin based off of a prime integer and it displays it in the Frequency indicator. If you
are not using the Remote Control of Lab Instruments feature, then manually set your signal source output
frequency to coincide with the displayed Frequency indicator. You also have control over the amplitude of
the signal source. Texas Instruments recommends that you set this to be -1 dBFS of the device under
evaluation.
IN
4.5 Configure the ADC Sampling Frequency (Fs) conditions
Find the control labeled Sampling Frequency and set this to the value at which you want to clock the ADC.
For the best performance, do not set this above the recommended device operating frequency. Set the
clock amplitude by varying the clock amplitude control.
4.6 Configure the TSW1100 Capture
Use the Capture control to select which Chan 1 + Chan 2. Select the depth of capture by selecting the
acquisition size in the Number of Points control. Texas Instruments recommends that you set this to
16384 for sinusoidal input evaluation.
) Conditions
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Acquire Data
4.7 Acquire Data
At this point you are ready to capture data from the ADC. You can do so by clicking on the red circular
Acquire Data button located below the graph. After clicking the acquire button the software will wait for an
external trigger, which can be applied by either depressing SW1 or providing a trigger stimulus to J5 of the
TSW1100. This synchronously captures ADC data on both channel 1 and channel 2. After it is complete,
you will see a FFT plot as well as Capture Statistics and FFT Computations for the channel selected. You
can view the data and performance for each channel independently.
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The TSW1100 software package allows users to save raw data sets for import into other analysis
packages. Once saved, you may recall it at any time and the software will configure the settings to match
the previously taken data set.
5.1 Saving a Data Set
On the tabbed browser at the bottom, select the File Save tab. Once there make sure the File Capture
Selector is set to capture a text file. You may also change the default directory path and the data format to
either decimal or hexadecimal.
5.2 Retrieving a Saved Data Set
On the Data Capture Selector, scroll through the list and select Read From File. Once selected, click on
the red circular Acquire Data button and it prompts you for a text file to read in. Select the appropriate text
file and the saved date set will be redisplayed.
Chapter 5
SLAU155 – August 2005
Saving and Recalling Data to a File
5.3 Performing a Screen Capture
Similar to saving a data set, a screen capture can be performed by the following method. First, on the
tabbed browser at the bottom, select the File Save tab. Change the File Capture Selector to Screen.
There are three different picture formats supported: bmp, png, and jpg all of which can be selected by the
Image File Type control. When you are ready to acquire the screen, click on the red circular button, Save
Data.
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Performing a Screen Capture
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Chapter 6
SLAU155 – August 2005
Exiting the Program
While there is more than one way to exit the TSW1100 software package, it is advised to click on the red
circular Exit button located below the graph. In doing so, all control values will be saved and recorded
such that the next time you open the program it will have the defaults set to when you last used the
program.
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EVM IMPORTANT NOTICE
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:
This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR
EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use. As
such, the goods being provided may not be complete in terms of required design-, marketing-,
and/or manufacturing-related protective considerations, including product safety measures typically found in the end product incorporating the goods. As a prototype, this product does not fall
within the scope of the European Union directive on electromagnetic compatibility and therefore
may not meet the technical requirements of the directive.
Should this evaluation kit not meet the specifications indicated in the EVM User's Guide, the kit
may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING
WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU
OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY
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The user assumes all responsibility and liability for proper and safe handling of the goods. Further,
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EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY
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TI currently deals with a variety of customers for products, and therefore our arrangement with the
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TI assumes no liability for applications assistance, customer product design, software
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Please read the EVM User's Guide and, specifically, the EVM Warnings and Restrictions notice in
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Persons handling the product must have electronics training and observe good laboratory practice
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No license is granted under any patent right or other intellectual property right of TI covering or
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Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2005, Texas Instruments Incorporated
EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the input voltage range of xxx V to xxx V and the output
voltage range of xxx V to xxx V.
Exceeding the specified input range may cause unexpected operation and/or irreversible damage
to the EVM. If there are questions concerning the input range, please contact a TI field
representative prior to connecting the input power.
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Performing a Screen Capture
EVM WARNINGS AND RESTRICTIONS (continued)
Applying loads outside of the specified output range may result in unintended operation and/or
possible permanent damage to the EVM. Please consult the EVM User's Guide prior to
connecting any load to the EVM output. If there is uncertainty as to the load specification, please
contact a TI field representative.
During normal operation, some circuit components may have case temperatures greater than xxx
C. The EVM is designed to operate properly with certain components above xxx C as long as the
input and output ranges are maintained. These components include but are not limited to linear
regulators, switching transistors, pass transistors, and current sense resistors. These types of
devices can be identified using the EVM schematic located in the EVM User's Guide. When
placing measurement probes near these devices during operation, please be aware that these
devices may be very warm to the touch.
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2005, Texas Instruments Incorporated
SLAU155 – August 2005 Exiting the Program 17
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IMPORTANT NOTICE
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