QI 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
ASync 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.