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Synchronize two AD9914 for I and Q Generation

Question asked by Bjoern.Moehring on May 28, 2018
Latest reply on Aug 18, 2018 by xiaoping

Hello,

 

I want to use two DDS AD9914  to generate I and Q signals up to 1400 MHz. I have read in the forum that synchronization of AD9914/9915 is only possible up to a clock frequency of 2.5 GHz. What happens if I use a greater clock rate than 2.5 Ghz, say 3.5 GHz, does it fail totally or does the synchronization just is not stable/reliable any more?

 

Thanks in advance and kind regards

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