KR970013647A - Audio differential bus receiver for audio / video intercommunication - Google Patents

Audio differential bus receiver for audio / video intercommunication Download PDF

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Publication number
KR970013647A
KR970013647A KR1019960034166A KR19960034166A KR970013647A KR 970013647 A KR970013647 A KR 970013647A KR 1019960034166 A KR1019960034166 A KR 1019960034166A KR 19960034166 A KR19960034166 A KR 19960034166A KR 970013647 A KR970013647 A KR 970013647A
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KR
South Korea
Prior art keywords
coupled
bus receiver
audio
single output
differential amplifier
Prior art date
Application number
KR1019960034166A
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Korean (ko)
Other versions
KR100431173B1 (en
Inventor
데이빗 걸리 토마스
마이클 화이트 찰스
Original Assignee
이먼 제이. 월
톰슨 콘슈머 일렉트로닉스, 인코오포레이티드
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Application filed by 이먼 제이. 월, 톰슨 콘슈머 일렉트로닉스, 인코오포레이티드 filed Critical 이먼 제이. 월
Priority to KR1019960034166A priority Critical patent/KR100431173B1/en
Publication of KR970013647A publication Critical patent/KR970013647A/en
Application granted granted Critical
Publication of KR100431173B1 publication Critical patent/KR100431173B1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier
    • H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid state elements of the amplifier in emitter-coupled or cascode amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/148—Video amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45458—Indexing scheme relating to differential amplifiers the CSC comprising one or more capacitors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

오디오 버스 수신기는 각 입력 저항기(R1:R2)를 통해 각 버스 수신기 입력 단자(1:2)에 결합된 베이스 전극, 각 전류원(16:20)에 결합된 다이오드인 에미터 전극 및 각 부하 저항기(R7:R8)를 통해 기준 전위 전원에 결합된 콜렉터 전극을 갖는 한쌍(Q1,Q2)의 바이폴라 트랜지스터를 포함한다. 에미터는 이득 제어 저항기(R5)를 통해 함께 결합되며 콜렉터는 차동 증폭기(30)를 통해 출력 단자(28)에 결합된다. 바람직하게 수신기는 예비 전원 공급기 사용을 요구하지 않는 전력 다운 상태하에서 버스를 장하시키지 않는다. 또한, 높은 공통 모드 제거는 소자의 정확한 매칭에 필요하지 않도록 이루어지며 다일 공급 전원만이 동작에 필요하다.The audio bus receiver includes a base electrode coupled to each bus receiver input terminal (1: 2) through a respective input resistor (R1: R2), an emitter electrode being a diode coupled to each current source (16:20) (Q1, Q2) having a collector electrode coupled to a reference potential supply through a resistor R7: R8. The emitters are coupled together via a gain control resistor R5 and the collector is coupled to the output terminal 28 via a differential amplifier 30. Preferably, the receiver does not charge the bus under a power down state that does not require the use of a standby power supply. Also, the high common-mode rejection is made unnecessary for accurate matching of the device, and only the multi-source supply is required for operation.

Description

오디오/비디오 상호접촉용 오디오 차동 버스 수신기Audio differential bus receiver for audio / video intercommunication

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

도1은 본 발명을 구현한 차동 오디오 버스 수신기를 상세히 나타낸 도면.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a detailed circuit diagram of a differential audio bus receiver embodying the present invention. FIG.

Claims (5)

단일 출력의 오디오 차동 버스 수신기 장치에 있어서, 각 입력 저항기(R1:R2)를 통해 각 버스 수신기 입력 단자(1:2)에 결합된 베이스 전극, 각 전류원(16:20)에 결합된 다이오드인 에미터 전극 및 각 부하 저항기(R7:R8)를 통해기준 전위 전원에 결합된 콜렉터 전극을 각각 갖는 한쌍(Q1,Q2)의 트랜지스터를 포함하며, 상기 에미터 전극은 이득 제어 저항기(R5)를 통해 함께 결합되며 상기 콜렉터 전극은 단일 출력 스테이지를 갖는 차동 증폭기(30)를 통해 출력단자(28)에 결합되는 것을 특징으로 하는 단일 출력의 오디오 차동 버스 수신기 장치.A single output audio differential bus receiver apparatus comprising: a base electrode coupled to each bus receiver input terminal (1: 2) through a respective input resistor (R1: R2); a diode coupled to each current source (16:20) (Q1, Q2) each having a collector electrode coupled to a reference potential power source through a load resistor (R7: R8), and the emitter electrode is coupled together through a gain control resistor (R5) And the collector electrode is coupled to an output terminal (28) via a differential amplifier (30) having a single output stage. 제1항에 있어서, 적어도 하나의 DC 오프셋 수단(CR3, CR4)은 상기 콜렉터 부하 저항기(R7:R8)중 하나에 결합되는 것을 특징으로 하는 단일 출력의 오디오 차동 버스 수신기 장치.The apparatus of claim 1, wherein at least one DC offset means (CR3, CR4) is coupled to one of the collector load resistors (R7: R8). 제2항에 있어서, 상기 차동 증폭기(30)는 상기 한쌍의 트랜지스터(Q1,Q2)의 상기 콜렉터 전극의 각각에 접속된 에미터 및 베이스 전극을 가지며 단일 출력 신호를 발생시키는 콜렉터 전극을 갖는 제3트랜지스터(Q7)를 포함하는 것을 특징으로 하는 단일 출력의 오디오 차동 버스 수신기 장치.The differential amplifier circuit according to claim 2, characterized in that the differential amplifier (30) comprises an emitter and a base electrode connected to each of the collector electrodes of the pair of transistors (Q1, Q2) and having a collector electrode ≪ / RTI > and a transistor (Q7). 제3항에 있어서, 상기 차동 증폭기(30)는 상기 단일 출력 신호를 상기 출력 단자(28)에 결합시키는 전류 미러 증폭기를 추가로 포함하는 것을 특징으로 하는 단일 출력의 오디오 차동 버스 수신기 장치.4. The single output audio differential bus receiver device of claim 3, wherein the differential amplifier (30) further comprises a current mirror amplifier coupling the single output signal to the output terminal (28). 제3항에 있어서, 상기 차동 증폭기(30)는 상기 단일 출력 신호를 상기 출력 단자에 결합시키는 공통 베이스 증폭기를 추가로 포함하는 것을 특징으로 하는 단일 출력의 차동 버스 수신기 장치.4. The single output differential bus receiver device of claim 3, wherein the differential amplifier (30) further comprises a common base amplifier coupling the single output signal to the output terminal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960034166A 1995-08-21 1996-08-19 Audio differential bus receiver for audio/video interconnection KR100431173B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960034166A KR100431173B1 (en) 1995-08-21 1996-08-19 Audio differential bus receiver for audio/video interconnection

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/517,715 1995-08-21
US08/517,714 1995-08-21
KR1019960034166A KR100431173B1 (en) 1995-08-21 1996-08-19 Audio differential bus receiver for audio/video interconnection

Publications (2)

Publication Number Publication Date
KR970013647A true KR970013647A (en) 1997-03-29
KR100431173B1 KR100431173B1 (en) 2004-07-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100440042B1 (en) * 1995-08-21 2004-11-09 톰슨 콘슈머 일렉트로닉스, 인코포레이티드 Video differential bus receiver for audio / video interconnection

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5202765A (en) * 1991-05-06 1993-04-13 Thomson Consumer Electronics, Inc. Television receiver with picture in picture and non-linear processing
US5305109A (en) * 1992-09-08 1994-04-19 Samsung Electronics Co., Ltd. Parallel untuned video if amplifiers supplied signals from TV 1st detector via respective input filters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100440042B1 (en) * 1995-08-21 2004-11-09 톰슨 콘슈머 일렉트로닉스, 인코포레이티드 Video differential bus receiver for audio / video interconnection

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KR100431173B1 (en) 2004-07-30

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