SLVUDD5 July   2025 DAC39RF20

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents (Required Equipment)
    3. 1.3 Specification
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 Setup Procedure
      1. 2.1.1  Installing the DAC39RF20EVM Configuration GUI Software
        1. 2.1.1.1 Installing and Setting Up Vivado™ Lab Tools
      2. 2.1.2  Connect the DAC39RF20EVM and TSW14J59EVM
      3. 2.1.3  Connect the Power Supplies to the Boards (Power Off)
      4. 2.1.4  Connect the Spectrum Analyzer to the EVM
      5. 2.1.5  Turn On the TSW14J59EVM Power and Connect to the PC
      6. 2.1.6  Turn On the DAC39RF20EVM Power Supplies and Connect to the PC
      7. 2.1.7  Turn On the Signal Generators
      8. 2.1.8  Launching the DAC39RF20EVM GUI and Programming the DAC EVM - JMODE 0 (Bypass Mode)
      9. 2.1.9  Launching the DAC39RF20EVM GUI and Programming the DAC EVM - JMODE 1 (DUC Mode)
      10. 2.1.10 Configuration Example of DAC39RF20EVM in DDS Mode
    2. 2.2 Evaluation Board Details: Analog Outputs
    3. 2.3 FMC Signal Routing
  7. 3Hardware Design Files
  8. 4Additional Information
    1. 4.1 Trademarks

Launching the DAC39RF20EVM GUI and Programming the DAC EVM - JMODE 1 (DUC Mode)

The configuration example of DAC39RF20EVM in JMODE 1 is shown below.

  1. JMODE 1: complex data, interpolate x4.
    1. Configuration details:
      1. 20GSPS at +6dBm
      2. 10.3125Gbps SERDES rate
      3. 16 lanes
      4. JESD_M = 2
  2. Follow the steps in the following figures to launch the DAC GUI. Follow the steps as shown to configure the EVM.
DAC39RF20EVM DAC39RF20EVM EVM Hardware Setup, JMODE 1Figure 2-14 DAC39RF20EVM EVM Hardware Setup, JMODE 1
DAC39RF20EVM EVM GUI Configuration for JMode 1- JESD Config TabFigure 2-15 EVM GUI Configuration for JMode 1- JESD Config Tab
DAC39RF20EVM EVM GUI Configuration for JMode 1- Clocking TabFigure 2-16 EVM GUI Configuration for JMode 1- Clocking Tab
DAC39RF20EVM J59 Server.exe and J59 Commander, Setup Part 1Figure 2-17 J59 Server.exe and J59 Commander, Setup Part 1
DAC39RF20EVM DAC Wavegen GUI Setup
                    Details Figure 2-18 DAC Wavegen GUI Setup Details
DAC39RF20EVM J59 Commander Setup Details, Part 2Figure 2-19 J59 Commander Setup Details, Part 2
DAC39RF20EVM J59 Server.exe and J59 Commander, Setup Part 2Figure 2-20 J59 Server.exe and J59 Commander, Setup Part 2
DAC39RF20EVM EVM GUI Configuration for JMode 1- JESD Config Tab, Checking StatusFigure 2-21 EVM GUI Configuration for JMode 1- JESD Config Tab, Checking Status
DAC39RF20EVM EVM GUI Configuration for JMode 1- Setup DSP Config Tab for NCO, Part 1Figure 2-22 EVM GUI Configuration for JMode 1- Setup DSP Config Tab for NCO, Part 1
DAC39RF20EVM EVM GUI Configuration for JMode 1- Setup DSP Config Tab for NCO, Part 2Figure 2-23 EVM GUI Configuration for JMode 1- Setup DSP Config Tab for NCO, Part 2
DAC39RF20EVM EVM GUI Configuration for JMode 1- Setup DAC Outputs TabFigure 2-24 EVM GUI Configuration for JMode 1- Setup DAC Outputs Tab
DAC39RF20EVM DAC Output CHA Spectrum, JMODE 1, Interpolate by 4 at 20GSPSFigure 2-25 DAC Output CHA Spectrum, JMODE 1, Interpolate by 4 at 20GSPS

DACA is getting the modulated LFM chirp. A full 20GHz span is shown (two Nyquist zones). The second Nyquist image suppression is provided by DES2XL mode.

DAC39RF20EVM DAC Output CHB Spectrum, JMODE 1, Interpolate by 4 at 20GSPSFigure 2-26 DAC Output CHB Spectrum, JMODE 1, Interpolate by 4 at 20GSPS

DACB is generating a sinlge 3GHz tone by DDS. A full 20GHz span is shown (two Nyquist zones). A second Nyquist image suppression is provided by DES2XL mode.

DAC39RF20EVM Example of DAC39RF20 GUI in JMODE 1 Placing
                    Multiple Streams on a Single DAC OutputFigure 2-27 Example of DAC39RF20 GUI in JMODE 1 Placing Multiple Streams on a Single DAC Output
DAC39RF20EVM Example Spectrum of Both JMODE 1 Streams Sent
                    to DACA OutputFigure 2-28 Example Spectrum of Both JMODE 1 Streams Sent to DACA Output

Both the single tone and the 2GHz modulated LFM are present on a single DACA output. All four streams can be mapped to either or both DACs when configured.