I am trying to generate a clock of 308.5714 MHz using AD9554. With the evaluation software, the words are supposed to be loaded to registers of the board, as shown below,
When the "read all" button is pressed, there are errors. It seems the registers are not written as expected. There is no input signal at the Ref A input ports. Do I need to connect a 20 MHz external sinusoidal signal at Ref A to have words loaded to the registers? For my application, is there any configuration of hardware needed using headers for AD9554 Eva board?