LAB Sessions
High Speed Data Converter University
Updated Q1 2012 – Jim Seton
TSW1400 + TSW3085
- RF Transmitter Reference Design
- Pattern Generator
TSW1265 + TSW1400
- Dual Receiver Reference Design
- Data Capture
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TSW1400
(Pattern Generator Mode)
TSW3085
TX RF
Output
TSW1400
(Capture Mode)
TSW1265
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TSW1400 & TSW3085 Setup Block Diagram
USB Mini-B
Cable
PC
USB
USB Mini-B
Cable
USB
+5V
J5
J12
J13
J74
J11
J1
TSW1400
Pattern
Generator
TX
RF
J7
LO
J4
J8
TSW3085
LO
TSW3065
LO Source
+6V
4
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TSW1400 + TSW1265 Setup Block Diagram
PC
USB
USB
5V
USB
5V in
TSW1400
ADC INTERFACE
USB
Clock
Source
CLKIN1
REF In
J1
RFIN-A
RF Source Input
(TSW3085)
ADC
TSW1265
6V in
6V
REF Out
LO2
TSW3065
6V
6V in
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Software Loading
The latest version of the GUI software files and User’s Guide manual can be found on
the TI website by entering “TSW1400EVM” in the search parameter as shown below.
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TSW1400 Software Loading
•
Unzipping the software package will generate a folder called “slwc107b.zip.
•
Under the unzipped folder called SLWC107 will be a “setup.bat file, a folder called “EVM GUI”
and another folder called “FTDI”. The EVM GUI folder contains the GUI code and the other
folder contains the drivers for the USB interface.
•
If running the software for the first time, run the file called “setup.bat”. This loads the FTDI
drivers followed by installing the High Speed Data Converter Pro GUI software.
•
Follow the on-screen instructions during installation.
•
Once installed, the GUI executable will reside in the following directory:
C:\Program Files\Texas Instruments\High Speed Data Converter Pro
•
Click on “High Speed Data Converter Pro.exe to start the GUI.
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TSW3085 Software Loading
•
Unzip the TSW308x software package.
•
Run the file called “setup.bat”.
•
Follow the on-screen instructions during installation.
•
Once installed, the GUI executable will reside in the following directory:
C:\Program Files\Texas Instruments\TSW308x
•
Click on “TSW308x.exe to start the GUI.
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TSW1400 + TSW3085 Bring Up
•
•
•
•
•
•
Power up the TSW3085.
Power up the TSW1400 EVM.
Connect power to TSW3065 (USB cable).
Start up the TSW1400 GUI.
Connect the GUI to the TSW1400EVM.
“No Firmware. Please select a device to load
firmware into the board” message will appear.
Click “OK”.
• Start up the TSW308x GUI.
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Program TSW3085
• Change the Device Selection setting at the top to be the
“TSW3085 EVM Software Control”.
• Click on “Load Regs” button at the top.
• Select file called “LTE_INT2x_10MHz_614p4M.txt”.
• Click on “Send All” button.
• The LOCK LED on the TSW3085 will turn green
confirming the TSW3085EVM is programmed.
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Program TSW1400
•
•
•
On the TSW1400 GUI, select “DAC” (Top right of GUI) to change the mode
of operation to pattern generation.
Select the DAC3482 in the drop down menu.
The following Firmware dialog message will show up. Click yes to load the
firmware.
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Program TSW1400
• When the firmware is finished downloading, set the Data Rate to
“307.2M” and the DAC Option to “2’s Complement”.
• Click the “Load File to transfer” button.
• Select the file called
“LTE_Freq_30MHz_Amp_0dB_BW_20.003MHz_307.2MSPS.tsw.
• Change the Window selection from Rectangular to Hanning.
• Select the “Send” button to the left of Load File to transfer the data
into TSW1400.
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On the DAC GUI, click on the
SIF Sync button twice to
synchronize the DAC.
The TSW1400 should be
loaded with the correct
pattern and the TSW1400
GUI will look like the image
on the next slide.
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TSW1400 GUI with loaded data
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TSW3085 Output
• The TSW3085 output will look as shown in the
next slide if connected to a Spectrum Analyzer,
centered around 2.13 GHz.
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TSW3085 Output
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Powering TSW1400, TSW1265, TSW3065
• Power up TSW1400 EVM (5V wall plug)
• Power up TSW1265 EVM (6V wall plug)
• Power up TSW3065 EVM (USB cable)
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TSW1265 Software
TSW1265 Software Loading
•
Unzipping the software package will generate a folder called “slwc105b.zip.
•
Under the unzipped folder called SLWC105 run the “setup.exe” file.
•
Follow the on-screen instructions during installation.
•
Once installed, the GUI executable will reside in the following directory:
C:\Program Files\Texas Instruments ADCs\TSW1265 GUI
•
Click on “TSW1265 GUI.exe to start the GUI.
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Configure the TSW1265
• Open the TSW1265 GUI located in Start Menu>Program Files>Texas Instruments ADCs
• Verify that the GUI is connected to the USB port
• Select “Load” and navigate to the “Configuration Files” folder in the TSW1265 GUI
installation directory. Select “250MHz_onboard_clock.txt” and click “Ok”
• Push the “Send All” button a couple of times to make sure all the registers are loaded.
The LED labeled “LMK LOCK” (D3) on the TSW 1265 will light up when the clock is
configured correctly.
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Configure TSW3065 for LO
• Make sure both silver toggle switches are set to 6V and Internal
• The DIP switches on the side can be set in the following
configurations
• Set the DIP switch settings so that only the D4 LED is lit (1960MHz).
On the TSW3065, the DIP switch being UP turns the LED off, down
turns the LED on.
• Connect “LO Diff P Out” on the TSW3065 to the LO2 input on the
TSW1265. This may be shared with the TSW3085 demo.
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High Speed Data Converter Pro Configuration
• Open “High Speed Data Converter Pro” by going to
Start>All Programs>Texas Instruments ADCs
• The following prompt will ask you to select the serial number of the TSW1400
connected. This should be printed on the TSW1400 hardware. Select the
correct serial number and click “ok”.
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High Speed Data Converter Pro Configuration
• If a message shown below appears when connecting to the
TSW1400 board, then proceed by clicking OK again.
• Make sure the ADC tab is selected at the top, as shown on the next
page.
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High Speed Data Converter Pro Configuration
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High Speed Data Converter Pro Configuration
• Now select ADS4249 in the drop down menu highlighted by the red box in the image below. After
doing so, the Firmware dialog message will show up. Click yes to load the firmware.
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TSW1400 GUI Configuration
• When the firmware is finished downloading, select “Single Tone” from the test
selection menu. Choose 65356 as your record length, set the sampling rate
to “250M” and the input target frequency to “180M”. Hit enter after entering
the target frequency to have the GUI calculate the coherent input frequency.
• Select “Channel 2/2” from the drop down box above the plot window.
• Select the “Hanning” window from the drop down box.
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TX/RX Loop Back
• Now connect the TSW3085 transmitter demo to the TSW1265 receiver demo
by connecting the TX OUT port of the TSW3085 to the RFIN A port on the
TSW1265.
• The TSW3085 should already be transmitting a 20-MHz wide LTE signal.
• Go to the TSW1265 GUI and click on the “LMH6521 Gain” tab. Set the gain
of Channel A to 3 dB. Be careful not to set the gain too high to avoid
damaging the ADC.
• Click “capture” on the TSW1400 GUI that is connected to the TSW1265.
• The result is shown on the next page.
• Use the draggable cursors to verify the signal is approximately 20 MHz wide.
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20-MHz LTE Result
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