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Multichip synchronization AD9371/AD9375

Question asked by Michael_Lestchew on Nov 15, 2017
Latest reply on Nov 17, 2017 by Vinod

Hello. I’m interested in multichip synchronization for AD9371/AD9375. My application requires RF multichip synchronization and AD9371/AD9375 has multichip synchronization function, but as described in UG-992 the ability to synchronize RF local oscillators is not available on those devices. I want to use external LO for multichip RF synchronization, but don’t want to have problems such as the ones I had when tried to synchronize multiple AD9361. I used common clock source, SYNC source and common external LO, but there was a problem of 180 degree phase difference between the two measurements with external LO (such as described in I'd like to know if there will be a similar problem with AD9371/AD9375 and what’s the better way to fully synchronize multiple AD9371/AD9375?