I am using two AD9834’s, one to generate a sine wave and the other a sync signal with settable phase difference. A common 75MHz clock is use. A D-type flip-flop triggered by the 75MHz clock is used to issue the same reset signal to both chips. I am planning to set all parameters to the two chips and then issue a reset. Will this configuration work? AN578 and AN605 are recommended. But those configurations use a hardware pin (frequency update pin) to do the sync. AD9834 does not have such a pin. Can you comment on that? Do you have a sample design with two AD9834’s (or similar)?