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

4.1.5 RXADC and FBADC Evaluation

  1. Connect the signal generator to J3 (RXA), J1 (RXB), J4 (RXC), or J2 (RXD) to supply the RXADC input at the defined NCO + 15MHz. Connect the signal generator to J5 (FBAB) or J6 (FBCD) to supply the FBADC input at the defined NCO + 15MHz.
  2. Highlight portion of applicable code below and select F7 to run. In Latte Window 6, select CGui_CGui_Custom_Gui to view the capture.
  3. In the capture window, select the Finite Samples capture type. View the capture in the Complex tab.
    ### RX/FB Tone In
AFE.selectCh(0,0,0) # select RX A, band 0
AFE.selectCh(0,0,1) # select RX A, band 1
AFE.selectCh(0,1,0) # select RX B, band 0
AFE.selectCh(0,1,1) # select RX B, band 1
AFE.selectCh(0,2,0) # select RX C, band 0
AFE.selectCh(0,2,1) # select RX C, band 1
AFE.selectCh(0,3,0) # select RX D, band 0
AFE.selectCh(0,3,1) # select RX D, band 1

AFE.selectCh(1,0) #select FBAB
AFE.selectCh(1,1) #select FBCD
    AFE7952EVM Typical RXADC 15MHz Single Tone Performance at 7.2GHz NCO Figure 4-5 Typical RXADC 15MHz Single Tone Performance at 7.2GHz NCO