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AD9548 clock distribution sync problem

Question asked by Lester on Oct 30, 2015
Latest reply on Oct 30, 2015 by neilw


  I locked the 1pps signal at reference A.


  Both phase and frequency are locked.


  But when I monitored the output 1 and reference A signal, the output cannot sync the input.

  The output waveform keep drifting when I use reference A input as trigger source.


  When I press the synchronize distribution button, the output will be sync to the 1pps signal, but it will drift after next clock trigger, not keep synchronize,


  What happen to that?







The Green one is Reference A signal,

The Yellow one is output signal.

The output signal is keep moving.