KR930015799A - Audio FM Signal Processing Circuit of TV Receiver - Google Patents

Audio FM Signal Processing Circuit of TV Receiver Download PDF

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Publication number
KR930015799A
KR930015799A KR1019910023491A KR910023491A KR930015799A KR 930015799 A KR930015799 A KR 930015799A KR 1019910023491 A KR1019910023491 A KR 1019910023491A KR 910023491 A KR910023491 A KR 910023491A KR 930015799 A KR930015799 A KR 930015799A
Authority
KR
South Korea
Prior art keywords
phase shift
signal processing
audio
receiver
processing circuit
Prior art date
Application number
KR1019910023491A
Other languages
Korean (ko)
Inventor
박용호
Original Assignee
이헌조
주식회사 금성사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019910023491A priority Critical patent/KR930015799A/en
Publication of KR930015799A publication Critical patent/KR930015799A/en

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Abstract

본 발명은 TV수상기의 오디오 FM 신호 처리회로와 관련된 것으로서, 이는 특히 종래 FM 신호처리의 복조처리단에서 신호의 위상 쉬프트와 전류 조절회로를 집적회로 구성할때 위상 쉬프트측에 연결되는 탱크회로가 두개의 단자핀을 점유할 수 밖에 없어 이러한 회로의 집적화에 불리하게 작용되는 문제를 야기하였으나, 본 발명에선 이러한 문제점을 개선할 수 있도록, 하나의 단자핀에 의한 탱크부(13) 접속이 가능토록 한 위상 쉬프트 스위치부(11)와, 전류미러형 전류원 출력부(12)를 포함한 구성의 TV 수상기에서 FM 신호처리회로를 제공하는데 있다.The present invention relates to an audio FM signal processing circuit of a TV receiver, which includes two tank circuits connected to a phase shift side when an integrated circuit is configured for a phase shift of a signal and a current control circuit in a demodulation stage of conventional FM signal processing. However, in order to solve this problem, in the present invention, it is possible to connect the tank 13 by one terminal pin. The present invention provides an FM signal processing circuit in a television receiver having a phase shift switch section 11 and a current mirror type current source output section 12.

Description

TV수상기의 오디오 FM 신호처리회로Audio FM Signal Processing Circuit of TV Receiver

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 의한 FM 신호처리회로의 회로 블럭도, 제3도는 제2도의 실시예 회로도.2 is a circuit block diagram of an FM signal processing circuit according to the present invention, and FIG. 3 is an embodiment circuit diagram of FIG.

Claims (1)

FM 입력단(IS)으로 부터 인가된 신호를 위상쉬프트 스위칭 처리하는 위상 쉬프트 스위치부(11)와, 이 위상 쉬프트 스위치부(11)의 출력과 오디오 출력(Ao) 사이에 통상의 전류미러형 회로로 된 전류원 출력부(12)와, 상기 위상 쉬프트 스위치부(11)와 전류원 출력부(12)가 FM 처리집적회로(1A)로 되었을때는 위상 쉬프트용 탱크부(13)가 위상 쉬프트 스위치부(11)의 1개 단자핀과 접지점사이에 이어지도록 구성되어진 것을 특징으로 하는 TV수상기의 오디오 FM 신호 처리회로.A phase shift switch section 11 for performing phase shift switching on a signal applied from the FM input terminal IS, and a current current mirror type circuit between the output of the phase shift switch section 11 and the audio output Ao. When the current source output section 12, the phase shift switch section 11 and the current source output section 12 become the FM processing integrated circuit 1A, the phase shift tank section 13 is the phase shift switch section 11 Audio FM signal processing circuit of the TV receiver, characterized in that it is configured to connect between one terminal pin and the ground point. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910023491A 1991-12-19 1991-12-19 Audio FM Signal Processing Circuit of TV Receiver KR930015799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910023491A KR930015799A (en) 1991-12-19 1991-12-19 Audio FM Signal Processing Circuit of TV Receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910023491A KR930015799A (en) 1991-12-19 1991-12-19 Audio FM Signal Processing Circuit of TV Receiver

Publications (1)

Publication Number Publication Date
KR930015799A true KR930015799A (en) 1993-07-24

Family

ID=67356330

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910023491A KR930015799A (en) 1991-12-19 1991-12-19 Audio FM Signal Processing Circuit of TV Receiver

Country Status (1)

Country Link
KR (1) KR930015799A (en)

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