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frequency phase detector and mixer

Question asked by Dingshang on Apr 1, 2017
Latest reply on May 8, 2017 by stanis

  there are two RF clock signals  of LVPECL squire level, and the difference frequency of this two RF signals need to acquire. Should I use a mixer to get the difference frequency or use a digital frequency phase detector? if use a mixer, are passive  or active mixer should be chosen, and whice chip is suggestted?  if use a digital frequency phase detector,What is the output waveform?  Thanks.

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