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Synchronization for each 9 DDS(AD9915)

Question asked by hanseyo on Aug 16, 2013
Latest reply on Aug 21, 2013 by sitti

Hi, I have to generate a phase simulation signal having different phase on 9 DDS channels.

I arranged the circuit to synchronize each DDS same as datasheet. And conformed SYNC_IN signal that entered to each DDS. Also I did the DAC Calibration.

But DDS IF output didn't remain diiference of phase setting between DDS whenever power on/off.

Do you have any knowhow to synchronize each DDS.

 

Thank you.

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