SBAU417A July   2025  – September 2025 AFE7952

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 Recommended Test Environment
    2. 2.2 Required Hardware
    3. 2.3 Hardware Setup
      1. 2.3.1 AFE7952 EVM and TSW14J58 EVM Connections
      2. 2.3.2 Power Supply Setup
  7. 3Software
    1. 3.1 Required Software
      1. 3.1.1 Software Installation Sequence
    2. 3.2 Latte Overview
      1. 3.2.1 Latte User Interface
      2. 3.2.2 Useful Latte Short-Cuts
  8. 4Implementation Results
    1. 4.1 AFE7952EVM Configuration
      1. 4.1.1 Connect Latte to Board
      2. 4.1.2 Compile Libraries
      3. 4.1.3 Program AFE7952 EVM
      4. 4.1.4 TXDAC Evaluation
      5. 4.1.5 RXADC and FBADC Evaluation
    2. 4.2 AFE7952EVM Configuration Modifications
      1. 4.2.1 Data Converter Clocks Settings
      2. 4.2.2 Data Rate and JESD Parameters
      3. 4.2.3 Steps to Modify NCO
  9. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials (BOM)
  10. 6Additional Information
    1. 6.1 Status Check and Troubleshooting Guidelines
      1. 6.1.1 AFE7952 EVM Status Indicators
      2. 6.1.2 TSW14J58 EVM
    2. 6.2 Trademarks
  11. 7Revision History

4.1.4 TXDAC Evaluation

  1. Connect the signal analyzer to J9 (TXA), J7 (TXB), J10 (TXC), or J8 (TXD) to monitor the TXDAC output.
  2. Highlight portion of applicable code and select F7 to run. See Figure 4-4 for a typical performance measurement.
    ### TX Tone Out 

## Send 10 MHz Tone to TX AB
amplA = -10 #band 0 amp in dBfs
freqA = 10 #band 0 freq in MHz
amplB = -10 #band 1 amp
freqB = 10 #band 1 freq
AFE.selectCH(2,0)
AFE.FPGA.sendSingleTone(0,freqA,amplA,freqB,amplB)

## Send 10 MHz Tone to TX CD
amplA = -10 #band 0 amp
freqA = 10 #band 0 freq
amplB = -10 #band 1 amp
freqB = 10 #band 1 freq
AFE.selectCH(2,2)
AFE.FPGA.sendSingleTone(0,freqA,amplA,freqB,amplB)
    AFE7952EVM Typical TXDAC 10MHz Single Tone Performance at 7.2GHz NCO with -10dBFS Amplitude Figure 4-4 Typical TXDAC 10MHz Single Tone Performance at 7.2GHz NCO with -10dBFS Amplitude