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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

System and method for narrow band PLL tuning

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H03L-007/099   
미국특허분류(USC) 331/034; 331/016; 331/017; 331/0360C; 331/1170FE; 331/1170V; 331/179
출원번호 US-0580014 (2000-05-26)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Sterne, Kessler, Goldstein & Fox P.L.L.C.
인용정보 피인용 횟수 : 80  인용 특허 : 24
초록
▼

An integrated VCO having an improved tuning range over process and temperature variations. There is therefore provided in a present embodiment of the invention an integrated VCO. The VCO comprises, a substrate, a VCO tuning control circuit responsive to a VCO state variable that is disposed upon the substrate, and a VCO disposed upon the substrate, having a tuning control voltage input falling within a VCO tuning range for adjusting a VCO frequency output, and having its tuning range adjusted by the tuning control circuit in response to the VCO state var...

대표
청구항
▼

1. An integrated VCO comprising:a substrate; a VCO tuning control circuit responsive to a VCO state variable that is disposed upon the substrate; and a VCO disposed upon the substrate, having a tuning control voltage input falling within a VCO tuning range for adjusting a VCO frequency output, and having the VCO tuning range adjusted by the tuning control circuit in response to the VCO state variable wherein the VCO tuning control circuit includes a window detector comparing a signal derived from a PLL loop filter output to a fixed voltage difference bet...

이 특허에 인용된 특허 (24)

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