I am using two dual channel adc ad9643. I want know how to use SYNC pin of those ADC to synchronize ADC data output . Sampling clk for all adc is same and generated from a single crystal oscillator( same source).
Sampling clk is 200MHz ， clock divider is not used。 As the datasheet show， sync is used to sync clock divider. So, if I do not used clock divider, Does it mean that each ADC is inherently synchronized and does not require a sync signal?
Another question， If my AD9643 is on different PCB board， clock is also same source, did sync signal necessary to keep sync？