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Necessity of AD9680-1000EBZ SYSREF input

Question asked by pikafu on Feb 2, 2015
Latest reply on Feb 3, 2015 by pikafu

Do I need to supply a SYSREF input for the AD9680 in order to perform single tone CW testing on one channel? The datasheet states it is required for "multichip synchronization". VisualAnalog doesn't let me capture an FFT without it: gives warning "MGT Recovered clock missing or inactive." I'm guessing that SYSREF is necessary but I just wanted confirmation.