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

4.1.5 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 + 10MHz. Connect the signal generator to J5 (FBAB) or J6 (FBCD) to supply the FBADC input at the defined NCO + 10MHz.
  2. Highlight portion of applicable code below and select F7 to run. In Latte Window 6 in Section 3.2.1, 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
AFE7900EVM AFE7920EVM TSW14J58EVM Typical RXADC 10MHz Single Tone Performance at 3.5GHz NCO Figure 4-5 Typical RXADC 10MHz Single Tone Performance at 3.5GHz NCO