SLWU079D March   2012  – April 2016

 

  1.   TSW140x High Speed Data Capture/Pattern Generator Card
    1.     Trademarks
    2. 1 Functionality
      1. 1.1 ADC EVM Data Capture
      2. 1.2 DAC EVM Pattern Generator
    3. 2 Hardware Configuration
      1. 2.1 Power Connections
        1. 2.1.1 Output Power Regulators
      2. 2.2 Switches, Jumpers and Fuses
        1. 2.2.1 Switches and Pushbuttons
        2. 2.2.2 Jumpers
        3. 2.2.3 Fuses
      3. 2.3 LEDs
      4. 2.4 Connectors
        1. 2.4.1 Input LVDS ADC Interface Connector
        2. 2.4.2 JTAG Connector
        3. 2.4.3 Input CMOS ADC Interface Connector
        4. 2.4.4 Output LVDS Connector
        5. 2.4.5 Output CMOS DAC Interface Connector
        6. 2.4.6 USB I/O Connection
    4. 3 Software Start up
      1. 3.1 Installation Instructions
      2. 3.2 USB Interface and Drivers
      3. 3.3 Device ini Files
    5. 4 ADC Data Capture Software Operation
      1. 4.1 Testing a TSW1400 EVM with an ADS5281 EVM
      2. 4.2 Testing a TSW1400EVM with an ADS62P49EVM (CMOS Interface)
    6. 5 TSW1400 Pattern Generator Operation
      1. 5.1 Testing a TSW1400 EVM with a DAC3152 EVM
      2. 5.2 Loading DAC Firmware
      3. 5.3 Configuring TSW1400 for Pattern Generation
      4. 5.4 Testing a TSW1400 EVM with a DAC5688EVM (CMOS Interface)
    7. 6 TSW1405 Functional Description
      1. 6.1 Hardware Description
        1. 6.1.1 Power Connections
        2. 6.1.2 Pushbuttons
        3. 6.1.3 Jumpers
        4. 6.1.4 LEDs
      2. 6.2 Software Operation
        1. 6.2.1 Channel Selection
    8. 7 TSW1406 Functional Description
      1. 7.1 Hardware Description
        1. 7.1.1 Power Connections
        2. 7.1.2 Pushbuttons
        3. 7.1.3 Jumpers
        4. 7.1.4 LEDs
      2. 7.2 Software Operation
    9. 8 Revision History

5.3 Configuring TSW1400 for Pattern Generation

For this test, at the top of the GUI, set the following parameters:

  • Preamble to 0
  • Data Rate – 250 MSPS
  • DAC Option – Offset Binary
  • Active Channel – Channel 1
  • Analysis Window (samples) – 32,768
  • Window - Rectangular
  • Format - Complex

The pattern generation data file should match one of the Record Length’s to us the Rectangular window mode. If it does not, switch the window mode to another setting such as “Hanning”.

  • Click on the button labeled “Load File to transfer into TSW1400”.
  • Select “single_tone_cmplx_32768_250MSPS_BW_25.1MHZ.csv”.
  • Click on “Send”.

The display panel of the GUI will be updated, showing the test data that will be transmitted to the DAC EVM in both codes and frequency domain as shown in Figure 15.

fig40_slwu087.pngFigure 15. TSW1400 Output Data to DAC EVM

Using a spectrum analyzer, verify that there is now a 25.1-MHz tone present on both SMA J2 (IOUTA2) and J3 (IOUTB2) of the DAC3152 EVM.

To shut down the GUI, click on the “File” tab in the upper right corner of the GUI and select “Exit” in the pop up window that opens. This will specify that the USB ports are released by the software.