1. Enable DDS ModeConfiguration details:
   1. 20GSPS
   2. No Reference clock is required for DDS mode
   3. No TSW14J59EVM is required for DDS mode
   Figure 2-29 DAC EVM Setup in DDS Mode
2. Follow the steps in the figures below after launching the DAC GUI.

Figure 2-30 EVM GUI Configuration for DDS Mode - DSP Config Tab

Figure 2-31 EVM GUI Configuration for DDS Mode - DSP Config Tab

Figure 2-32 EVM GUI Configuration for DDS Mode - DAC Outputs Tab

Figure 2-33 DACA Output Getting the DDS0 Stream

A full 20GHz span is shown (two Nyquist zones). A second Nyquist image suppression is provided by DES2XL mode.

Figure 2-34 DACB Output Getting DDS1 Stream

A full 20GHz span is shown (two Nyquist zones). A second Nyquist image suppression is provided by DES2XL mode.

Update the DAC Outputs Tab as followed.

Figure 2-35 Example of DAC39RF20 GUI Placing Multiple Streams on a Single DAC Output

Figure 2-36 Example Spectrum of Both DDS Streams Sent to DACA Output