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ANALOG FRACTIONAL-N PHASE-LOCKED LOOP

  • US 20170366376A1
  • Filed: 06/21/2017
  • Published: 12/21/2017
  • Est. Priority Date: 06/21/2016
  • Status: Abandoned Application
First Claim
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1. An analog fractional-N phase-locked loop, comprising:

  • an oscillator loop having;

    a reference input, a feedback input, and a loop output, anda fractional feedback divider configured to divide signals on the loop output by a divisor, wherein output of the fractional feedback divider is fed back to the feedback input; and

    a compensation circuit coupled to one of the reference input and the feedback input, the compensation circuit configured to apply a time delay to the one of the reference input and the feedback input to compensate for delay introduced by the fractional feedback divider.

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