KR970029578A - Analog / Digital Composite V.C. Preamp Circuit Used in Egg - Google Patents

Analog / Digital Composite V.C. Preamp Circuit Used in Egg Download PDF

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Publication number
KR970029578A
KR970029578A KR1019950044365A KR19950044365A KR970029578A KR 970029578 A KR970029578 A KR 970029578A KR 1019950044365 A KR1019950044365 A KR 1019950044365A KR 19950044365 A KR19950044365 A KR 19950044365A KR 970029578 A KR970029578 A KR 970029578A
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KR
South Korea
Prior art keywords
analog
resistor
capacitor
input
digital
Prior art date
Application number
KR1019950044365A
Other languages
Korean (ko)
Inventor
조동일
Original Assignee
배순훈
대우전자 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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950044365A priority Critical patent/KR970029578A/en
Publication of KR970029578A publication Critical patent/KR970029578A/en

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Abstract

본 발명은 아날로그/디지탈 복합 브이.씨.알에 사용되는 프리엠프 회로에 관한 것이다.The present invention relates to a preamplifier circuit used in an analog / digital composite V.C.

본 발명은 종래의 아날로그 브이·씨알에서 사용되던 프리엠프 회로에 트랜지스터(Ql,Q2), 가변저항(R7), 저항(R6), 콘덴서(C6)를 접속하여 아날로그/디지탈 복합 브이.씨.알용 프리엠프 회로를 간단히 구성할 수 있는 효과가 있다.The present invention connects transistors Ql, Q2, variable resistor R7, resistor R6, and capacitor C6 to a preamp circuit used in a conventional analog V seed. There is an effect that the preamp circuit can be easily configured.

Description

아날로그/디지탈 복합 브이.씨.알에 사용되는 프리엠프 회로Preamp Circuit Used for Analog / Digital Composite V.C.R

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

본 도면은 본 발명의 바람직한 실시예에 따른 아날로그/디지탈 복합 브이.씨.알에 사용되는 프리엠프 회로의 회로도.Fig. 1 is a circuit diagram of a preamplifier circuit used in an analog / digital composite V.C.R according to a preferred embodiment of the present invention.

Claims (1)

소정의 집적회로(200)와, 상기 집적회로(200)의 입출력 단자(1 내지 16)와 접속되는 소정 갯수의 저항(Rl,R2,R3,R4,R5) 및 콘덴서(C1,C2,C3,C4,C5)로 구성된 아날로그 방식의 프리엠프 회로를 포함하는, 아날로그/디지탈 복합 브이.씨.알에서 기록 및 재생되는 비디오 신호를 전치 증폭하기 위한 프리엠프(preamp)회로에 있어서, 상기 집적회로(200)의 하나의 입출력 단자(8)와 연결되어 상기 아날로그 방식의 프리엠프를 구성하는, 직렬 연결된 소정의 저항(R5) 및 콘덴서(C5)와 병렬 연결되어 디지탈 신호 녹화시 아날로그 신호의 입력을 차단하는 제1트랜지스터(Q1)와; 상기 직렬 연결된 소정의 저항(R5) 및 콘덴서(C6)와 병렬 연결되어 상기 디지탈 신호 녹화시 입력되는 디지탈 데이타에 따른 기록 전류를 조정하고 상기 입력되는 디지탈 데이타를 상기 집적회로(200)를 통하여 헤드로 제공하는 가변 저항(R7), 콘덴서(C6) 및 저항(R6)과; 상기 가변 저항(R7), 콘덴서(C6), 저항(R6)과 병렬 접속되어, 상기 디지탈 데이타 재생시 상기 가변 저항(R7), 콘덴서(C6), 저항(R6)을 통하여 입력되는 디지탈 데이타를 차단하는 제2트랜지스터(Q2)를 더욱 포함하는 아날로그/디지탈 복합 브이.씨.알에 사용되는 프리엠프 회로.A predetermined number of resistors R1, R2, R3, R4, R5 and capacitors C1, C2, C3, which are connected to a predetermined integrated circuit 200, input / output terminals 1 to 16 of the integrated circuit 200, A preamp circuit for preamplifying a video signal recorded and reproduced in an analog / digital composite V.C. signal comprising an analog preamp circuit composed of C4 and C5, the integrated circuit ( It is connected in parallel with a predetermined resistor (R5) and a capacitor (C5) connected in series connected to one input and output terminal (8) of the 200 to form the analog preamp, and blocks the input of the analog signal during digital signal recording. A first transistor Q1; It is connected in parallel with the predetermined resistor (R5) and the capacitor (C6) connected in series to adjust the write current according to the digital data input at the time of recording the digital signal, and the input digital data to the head through the integrated circuit 200 A variable resistor R7, a capacitor C6, and a resistor R6 provided; It is connected in parallel with the variable resistor (R7), capacitor (C6), resistor (R6), and cuts off the digital data input through the variable resistor (R7), capacitor (C6), resistor (R6) at the time of reproducing the digital data. A preamplifier circuit used for an analog / digital composite V.C.r further comprising a second transistor (Q2). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950044365A 1995-11-28 1995-11-28 Analog / Digital Composite V.C. Preamp Circuit Used in Egg KR970029578A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950044365A KR970029578A (en) 1995-11-28 1995-11-28 Analog / Digital Composite V.C. Preamp Circuit Used in Egg

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950044365A KR970029578A (en) 1995-11-28 1995-11-28 Analog / Digital Composite V.C. Preamp Circuit Used in Egg

Publications (1)

Publication Number Publication Date
KR970029578A true KR970029578A (en) 1997-06-26

Family

ID=66588920

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950044365A KR970029578A (en) 1995-11-28 1995-11-28 Analog / Digital Composite V.C. Preamp Circuit Used in Egg

Country Status (1)

Country Link
KR (1) KR970029578A (en)

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