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How to use AD9554 Evaluation Board

Question asked by lingyun on Oct 15, 2015
Latest reply on Oct 19, 2015 by lingyun

Hi everyone,

 

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,

c1.PNG

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?

c2.PNG

Thank you,

Lingyun

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