SBAU484 February   2025 AFE7728D , AFE7768D , AFE7769D

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Hardware and Software Setup
    1. 2.1 Hardware Setup
    2. 2.2 Software Setup
    3. 2.3 Test Cases
      1. 2.3.1 Initial Bringup for All Test Cases
        1. 2.3.1.1 Test Case 1: Generate Sinusoidal tx_data From NCO @ 5MHz
        2. 2.3.1.2 Test case 2: Generate Sinusoidal tx_data From NCO @ 20MHz
        3. 2.3.1.3 Test Case 3: Connect Signal Generator Output Port to RX of the AFE7769DEVM (at output power, -13dBm)
        4. 2.3.1.4 Test Case 4: Connect Signal Generator Output Port to RX of the AFE7769DEVM (at output power, -23dBm)

2.3.1.3 Test Case 3: Connect Signal Generator Output Port to RX of the AFE7769DEVM (at output power, -13dBm)

  1. Once the steps in "Initial bringup for all test cases" section are complete, navigate to the Channel-Controls tab in Latte and under the “Channel TDD” box, click the buttons for RX to turn them green and “Set Tdd”.
    Enable RX TDD Figure 2-13 Enable RX TDD
  3. Connect any of the RX ports (RX1 = J1, RX2 = J2, RX3 = J3, TX4 = J4) from the AFE7769DEVM to the RF output of the signal generator.
  4. Ensure the signal generator is set to a frequency and output power of 1805.025 MHz and -13dBm, respectively.
    Signal Generator Settings, Test Case 3 Figure 2-14 Signal Generator Settings, Test Case 3
  5. In File Explorer, navigate to the “test1122_txz_rxz.stp” file, and double-click to open it in Signal Tap.
  6. Ensure “rx_datalink” is the selected tab and row; click the boxed icon to begin running data acquisition.
    rx_datalink in SignalTap Figure 2-15 rx_datalink in SignalTap
  7. Once acquisition is clear, pause the simulation with the same icon, this time a red square.
  8. Right-click on the “uu00|jesd204_rx_link_data” section of the middle pane, choose “Create Signal Tap List File”, and save as a .txt file.
  9. Decipher the data using the provided MATLAB script titled “rx_data_test.m”, and replace the sample .txt file name with the newly-created .txt file from the previous step.
  10. After running the code, a figure with four graphs will appear.