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구분 출원국
출원년도 ~ 키워드

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등록 주파수 합성기

주파수 합성기
이미지 확대
발명자
민병훈, 유현규
출원번호
13344513 (2012.01.05)
공개번호
20120105116 (2012.05.03)
등록번호
8193842 (2012.06.05)
출원국
미국
협약과제
초록
There is provided a frequency synthesizer. The frequency synthesizer includes a frequency oscillator adjusting an output frequency according to a control bit; a programmable divider having a preset minimum division ratio, the programming divider dividing the output frequency of the frequency oscillator at a variable division ratio; a counter unit receiving an output signal of the programmable divider and a reference frequency to generate a count value by counting rising edges of the output signal of the programmable divider during one cycle of the reference frequency, and outputting a first hit signal when the count value is 1, and outputting a second hit signal when the count value is 2; and a phase detection unit outputting a control bit obtained by subtracting a fractional error of the output signal of the programmable divider from a fractional error at a locked phase obtained from the count value and the reference frequency.
KSP 제안 키워드
Frequency synthesizer, Output frequency, Phase Detection, Reference frequency, one cycle
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