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HMC830 phase not stable

Question asked by wydkd2008@126.com on Jul 14, 2017
Latest reply on Jul 17, 2017 by dyoung1

Two same modules,  Common reference clock,  down conversion  to 76.8MHz, the Lo is HMC830, the question is when I Send the same data(Nint and Nfac) to the HMC830 in succession,76.8MHz's Phase difference value is changed, it is not stable,why? As shown in the video.

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