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

6.1.2 TSW14J58 EVM

TSW14J58EVM: On the LED strip, TX_Sync and RX_Sync is not illuminated. TX_Active and RX_Active is illuminated. Illumination specifications are necessary requirements for the JESD204B transceiver mode to work. TX_Active flashing indicating the TXDAC JESD204B link is established, while RX_Active flashing indicating the RXADC or FBADC JESD204B link is established.

AFE7952EVM: Enable data transmission on the DAC and data capture on the ADC. Adjust the RXNCO, FBNCO, and TXNCO at this point.

Adjust the RXDSA, FBDSA, and TXDSA at this point.

## Set RX DSA
afeInst = 0 #AFE Instance of AFE79_INST_TYPE type. If using the EVM this should be 0.
rxChSel = 0 #Value to select the RX chain.Value 0 for RXA to 3 for RXD.
dsaSetting = 20 #Analog DSA Index. Attenuation applied is   dsaSetting*0.5dB
CAFE.setRxDsa(afeInst,rxChSel,dsaSetting)

## Set TX DSA
afeInst = 0 #AFE Instance of AFE79_INST_TYPE type. If using the EVM this should be 0.
txChSel = 0 #Value to select the TX chain.Value 0 for TXA to 3 for TXD.
dsaSetting = 20 #Analog DSA Index. Attenuation applied is dsaSetting*1dB
CAFE.setTxDsa(afeInst,txChSel,dsaSetting)