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Frequency synthesizer and method controlling frequency synthesizer

  • US 9,762,220 B2
  • Filed: 12/18/2015
  • Issued: 09/12/2017
  • Est. Priority Date: 01/02/2015
  • Status: Active Grant
First Claim
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1. A frequency synthesizer comprising:

  • an oscillator configured to generate an oscillation frequency corresponding to a first channel code comprising a first plurality of bit values;

    a frequency decider configured to;

    (i) determine a bit value among the first plurality of bit values for the first channel code by comparing an output value corresponding to the oscillation frequency and a reference value corresponding to a target frequency,(ii) perform an error correction on the determined bit value by comparing a different value between the output value and the reference value with a predetermined stage range value, andrepeatedly perform (i) and (ii) until all of a second plurality of bit values for a second channel code are determined; and

    a phase locker configured to fine tune, based on the second channel code, the oscillation frequency to the target frequency.

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