KR890005985A - Mixing circuit of PAL and SECAM L tuners - Google Patents

Mixing circuit of PAL and SECAM L tuners Download PDF

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Publication number
KR890005985A
KR890005985A KR870010915A KR870010915A KR890005985A KR 890005985 A KR890005985 A KR 890005985A KR 870010915 A KR870010915 A KR 870010915A KR 870010915 A KR870010915 A KR 870010915A KR 890005985 A KR890005985 A KR 890005985A
Authority
KR
South Korea
Prior art keywords
circuit
oscillator
tuner
arm
mixer
Prior art date
Application number
KR870010915A
Other languages
Korean (ko)
Inventor
송석찬
Original Assignee
서주인
삼성전기 주식회사
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 서주인, 삼성전기 주식회사 filed Critical 서주인
Priority to KR870010915A priority Critical patent/KR890005985A/en
Publication of KR890005985A publication Critical patent/KR890005985A/en

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Abstract

내용 없음No content

Description

팔(PAL)과 세컴(SECAM) L 튜너의 믹싱회로Mixing circuit of PAL and SECAM L tuners

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

제2도는 본 발명에 의한 회로계통도,2 is a circuit diagram according to the present invention,

제3도는 본 발명의 실시예 회로도.3 is an exemplary circuit diagram of the present invention.

Claims (1)

팔 및 세컴 L 공용의 튜너에 있어서, 안테나로부터 필터, 입력동조회로, 증폭기, 단간동조회로, 발진기를 포함한 믹서회로 및 IF 동조회로를 포함하는 팔튜너(3)에 의한 IF 입력단에 제1 필터트랩회로(11), 엉뚱한 발진주파수 혼입용 제 1 발진기(16)를 포함한 제1 믹서기(12), 제2 필터트립회로(13), 소망주파대역을 뽑아내는 주파수의 제2 발진기(17)를 포함한 제2 믹서기(14)를 각기 직렬계통으로 연결하고, 상기 IF 입력단으로부터 IF 출력단 사이에 병렬로 스위치(SW) 구성을 가진 IF 대역변환부(1)의 구성을 특징으로 하는 팔과 세컴 L 튜너의 믹싱회로.In the tuner for arm and secom L common, a first input from an antenna to an IF input stage by an arm tuner 3 including a filter, an input tuning circuit, an amplifier, an inter-step tuning circuit, a mixer circuit including an oscillator and an IF tuning circuit The first mixer 12 including the filter trap circuit 11, the first oscillator 16 for mixing the wrong oscillation frequency, the second filter trip circuit 13, and the second oscillator 17 of the frequency extracting the desired frequency band. Arm and Secom L characterized in that the configuration of the IF band conversion unit 1 is connected to each of the second mixer 14 including a serial system, having a switch (SW) configuration in parallel between the IF input stage and the IF output stage Tuner mixing circuit. ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is to be disclosed based on the initial application.
KR870010915A 1987-09-30 1987-09-30 Mixing circuit of PAL and SECAM L tuners KR890005985A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR870010915A KR890005985A (en) 1987-09-30 1987-09-30 Mixing circuit of PAL and SECAM L tuners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR870010915A KR890005985A (en) 1987-09-30 1987-09-30 Mixing circuit of PAL and SECAM L tuners

Publications (1)

Publication Number Publication Date
KR890005985A true KR890005985A (en) 1989-05-18

Family

ID=68343959

Family Applications (1)

Application Number Title Priority Date Filing Date
KR870010915A KR890005985A (en) 1987-09-30 1987-09-30 Mixing circuit of PAL and SECAM L tuners

Country Status (1)

Country Link
KR (1) KR890005985A (en)

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