SBAU338B October   2019  – September 2025

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1EVM Overview
    1. 1.1 Caution and Warnings
    2. 1.2 Introduction
    3. 1.3 Kit Contents
    4. 1.4 Specifications
    5. 1.5 Device Information
  6. 2Hardware
    1. 2.1 Recommended Test Environment
    2. 2.2 Required Hardware
    3. 2.3 Hardware Setup
      1. 2.3.1 AFE79xx 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 AFE79xxEVM Configuration
      1. 4.1.1 Connect Latte to Board
      2. 4.1.2 Compile Libraries
      3. 4.1.3 Program AFE79xx EVM
      4. 4.1.4 TXDAC Evaluation
      5. 4.1.5 RXADC and FBADC Evaluation
    2. 4.2 AFE79xxEVM 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
      4. 4.2.4 Steps to Modify DSA
  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 AFE79xx EVM Status Indicators
      2. 6.1.2 TSW14J58EVM Status Indicators
    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 a portion of applicable code, and press F7 to run. See Figure 4-4 for typical performance measurement.
    ### TX Tone Out 

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

## Send 10MHz Tone to TX CD
amplA = -10 #band 0amp
freqA = 10 #band 0 freq
amplB = -10 #band 1amp
freqB = 10 #band 1 freq
AFE.selectCH(2,2)
AFE.FPGA.sendSingleTone(0,freqA,amplA,freqB,amplB)
    AFE7900EVM AFE7920EVM TSW14J58EVM Typical TXDAC 10MHz Single Tone Performance at 3.5GHz NCO with -10dBFS Amplitude Figure 4-4 Typical TXDAC 10MHz Single Tone Performance at 3.5GHz NCO with -10dBFS Amplitude