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AD9914: ramp generation, repeatable timing

Question asked by davewatt on Nov 15, 2017
Latest reply on Nov 15, 2017 by KennyG

Question: using AD9914, say I have a frequency ramp configured and ready to fire. Is there a method to reliably generate the signal with timing repeatable to within a few 100 ps relative to external inputs. I would imagine this would be possible if DRHOLD were sampled by REF_CLK but from the datasheet it appears DRHOLD is sampled by the internal sample rate clock so I don't know that my goal is achievable. Thanks.