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About AD9102 phase


I would like to use AD9102.

So, I have two questions.

#1  Is it possible to shift the phase of the waveform written to SRAM or to invert it?

      Is it possible by adjusting the register of DDS_PHASE?

#2  If it is possible to shift the phase, is it possible to issue a sinusoidal wave whose phase is continuously delayed by

   180 ° after issuing a sinusoidal wave of 0 ° phase?

Best Regards,


  • Hi -

    1. It is possible to invert SRAM generated waveforms using the DAC_DIG_GAIN variable at address 0x35. DDS_PHASE does not act on SRAM data. It controls the phase of the DDS output.

    2. Continuous DDS phase shifting is possible using the DDS_PHASE variable with the DDS generating the waveform.