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

4.2 Testing a TSW1400EVM with an ADS62P49EVM (CMOS Interface)

This section describes the operation when testing with an ADS62P49 EVM that is configured for CMOS output interface.

  • Power down the TSW1400 if an ADC EVM is not installed.
  • Connect J1 and J2 of the ADS62P49 EVM to connector J1 of the TSW1400 EVM.

NOTE

Pin 1 of the TSW1400 connector plugs into pin 39 of J1 on the ADS62P49 EVM.
  • Provide unpowered +5 VDC connections to J10 and return to J12 of the ADS62P49 EVM.
  • Provide a 1.5-VPP, 150-MHz sine-wave clock to J19 of the ADS62P49 EVM. Make sure this clock is within the frequency limits specified in the data sheet when operating in CMOS mode.
  • Provide a filtered 5.1-MHz analog input to CH1 (J6).
  • Power up the TSW1400 followed by the ADC EVM.
  • Setup the ADS62P49 EVM to operate in parallel mode, offset binary parallel CMOS output, and internal reference.
  • Start up the HSDC Pro GUI as described in the Software Start Up section.
  • The TSW1400 EVM connected to the CMOS connectors of the ADS62P49 EVM is shown in Figure 10
TSW1400EVM_CMOS_lwu079.pngFigure 10. TSW1400EVM Interfacing to the CMOS Connectors of an ADS62P49EVM

To setup the GUI to run in the data capture mode, click on the “ADC” tab in the top left side of the GUI. Navigate to the device selection button located in the upper left side of the GUI, click on the drop down arrow, then select “ADS62p49_cmos”. After double clicking on this file, a pop-up will open asking “Do you want to update the Firmware for ADC”. Click on “Yes”. The firmware starts loading which takes approximately 20 seconds to complete. After the firmware load has completed, the FPGA_CONF_DONE LED turns on after the FPGA is configured. The LEDs labeled USER_LED (0–7) should now all be on.

NOTE

If the TSW1400 is not receiving a valid clock from the ADC EVM, USER_LED3 and USER_LED4 will be off.
  • Use the “Test Selection” button to change the capture display to Single Tone.
  • Set the active channel setting to Channel 1/2.
  • Use the default Record Length value of 65,536.
  • Set the ADC Sampling Rate to 150 MHz.
  • Click on the Auto Calculation of Coherent Frequency function and Rectangular capture mode if using a coherent input frequency. Otherwise, do not set this and use "Blackman" windowing mode.
  • Set the input frequency source to the new value in ADC Input Target Frequency that is generated by the Auto Calculation of Coherent Frequency function.
  • Make sure the display mode is set to “Frequency”.
  • Click on the “Capture” button to perform a data capture. The results should like similar to those shown in Figure 11.
fig36_slwu087.pngFigure 11. TSW1400EVM Captured Results from ADS62P49EVM