I have seen several posts about synchronizing multiple AD9915's but not much on the AD9914. I want to synchronize the phase of multiple AD9914 chips in a system but need to operate with a 3.5 GHz REF CLK. Some posts indicate synchronization isn't possible/practical with a REF CLK greater than 2.5 GHz but it wasn't clear if that was only applicable to the AD9915. Can multiple AD9914's with a 3.5 GHz REF CLK be synchronized ?