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DELAY CIRCUIT

  • US 20190280697A1
  • Filed: 11/20/2018
  • Published: 09/12/2019
  • Est. Priority Date: 03/07/2018
  • Status: Active Grant
First Claim
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1. A delay circuit comprising:

  • a variable delay line suitable for receiving an input signal and generating an output signal by delaying the input signal;

    a first phase difference detector suitable for detecting a phase difference between the input signal and a first clock;

    a second phase difference detector suitable for detecting a phase difference between the output signal and a second clock; and

    a control circuit suitable for adjusting a delay value of the variable delay line in response to a detection result of the first phase difference detector and a detection result of the second phase difference detector.

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