RE: AD9514 synchronisation setup and hold times of SYNCB with respect to CLK/CLKB

Document created by analog-archivist Employee on Feb 23, 2016
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I would like to use two AD9514 with the same CLK/CLKB clock (it will be phase
aligned for both). I will use the SYNCB input of both AD9514 to synchronize all
clock outputs. What are the setup and hold times of SYNCB input with respect to
CLK/CLKB clock?

 

Sync is asynchronous in nature, i.e it is assumed to be async. I presume that
you want to sync two parts and don’t want any ambiguity between the output of
those two. I am thinking if you assert sync around 500ps before the clock edge
you would get repeatable behavior between the parts. I would use the same
number for hold also for repeatability purpose.

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