MX9600519A - Circuito de sintonia para un receptor, particularmente un receptor de television. - Google Patents

Circuito de sintonia para un receptor, particularmente un receptor de television.

Info

Publication number
MX9600519A
MX9600519A MX9600519A MX9600519A MX9600519A MX 9600519 A MX9600519 A MX 9600519A MX 9600519 A MX9600519 A MX 9600519A MX 9600519 A MX9600519 A MX 9600519A MX 9600519 A MX9600519 A MX 9600519A
Authority
MX
Mexico
Prior art keywords
stage
transistors
differential pair
coupled
amplifier
Prior art date
Application number
MX9600519A
Other languages
English (en)
Other versions
MXPA96000519A (es
Inventor
Gilles Chevallier
Original Assignee
Philips Electronics Nv
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 Philips Electronics Nv filed Critical Philips Electronics Nv
Publication of MXPA96000519A publication Critical patent/MXPA96000519A/es
Publication of MX9600519A publication Critical patent/MX9600519A/es

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
    • H03F3/45085—Long tailed pairs
    • H03F3/45089—Non-folded cascode stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
    • 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
    • H03F2203/45296—Indexing scheme relating to differential amplifiers the AAC comprising one or more discrete capacitive elements, e.g. a transistor coupled as capacitor
    • 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
    • H03F2203/45302—Indexing scheme relating to differential amplifiers the common gate stage of a cascode dif amp being controlled
    • 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
    • H03F2203/45311—Indexing scheme relating to differential amplifiers the common gate stage of a cascode dif amp being implemented by multiple transistors
    • 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
    • H03F2203/45352—Indexing scheme relating to differential amplifiers the AAC comprising a combination of a plurality of transistors, e.g. Darlington coupled transistors
    • 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
    • H03F2203/45544—Indexing scheme relating to differential amplifiers the IC comprising one or more capacitors, e.g. coupling capacitors
    • 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
    • H03F2203/45654—Indexing scheme relating to differential amplifiers the LC comprising one or more extra diodes not belonging to mirrors
    • 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
    • H03F2203/45696—Indexing scheme relating to differential amplifiers the LC comprising more than two resistors
    • 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
    • H03F2203/45702—Indexing scheme relating to differential amplifiers the LC comprising two resistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

Un circuito de sintonía en donde un oscilador local está constituido por un amplificador el cual es acoplado a un circuito de resonancia del tipo de capacitancia e inductancia variable, el amplificador tiene una primera etapa formada por lo menos por un par diferencial de transistores (T1, T2) bipolares. De acuerdo con la invencion, el amplificador también tiene una segunda etapa con otro par diferencial de transistores cuyos emisores de enlace son alimentados por la corriente del colector de uno de (T2) de los transistores de la primera etapa. Un transistor (T3) del par diferencial de la segunda etapa tiene su colector acoplado al resistor (RL) principal de la carga y su base acoplada al colector del otro transistor (T1) de la primera etapa el cual alimenta al resistor (Rb) de carga suplementaria. La base del otro transistor (T4) del par diferencial de la segunda etapa puede ser polarizado a una tension fija (Vref2) o a una tension variable, que tiene una fase apropiada. Aplicacion: recepcion de señales de television que cubre una banda de frecuencia amplia. Referencia, figura 2.
MX9600519A 1995-02-08 1996-02-07 Circuito de sintonia para un receptor, particularmente un receptor de television. MX9600519A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9501448A FR2730363A1 (fr) 1995-02-08 1995-02-08 Amplificateur a gain eleve en hautes frequences et oscillateur a circuit resonant muni d'un tel amplificateur
FR9501448 1995-02-08

Publications (2)

Publication Number Publication Date
MXPA96000519A MXPA96000519A (es) 1997-08-01
MX9600519A true MX9600519A (es) 1997-08-30

Family

ID=9475945

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9600519A MX9600519A (es) 1995-02-08 1996-02-07 Circuito de sintonia para un receptor, particularmente un receptor de television.

Country Status (8)

Country Link
US (1) US5859674A (es)
EP (1) EP0726648B1 (es)
JP (1) JPH08265202A (es)
CN (1) CN1091999C (es)
DE (1) DE69616105T2 (es)
FR (1) FR2730363A1 (es)
MX (1) MX9600519A (es)
MY (1) MY132214A (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002501715A (ja) * 1998-03-13 2002-01-15 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ダイオード検知器を使う同調
US6535722B1 (en) * 1998-07-09 2003-03-18 Sarnoff Corporation Television tuner employing micro-electro-mechanically-switched tuning matrix
US6760079B2 (en) * 1998-09-22 2004-07-06 Funai Electric Co., Ltd. TV tuner unit having a resonance network
US6452445B1 (en) * 2000-06-15 2002-09-17 Motorola, Inc. Voltage controlled variable gain element
JP2003110380A (ja) * 2001-06-26 2003-04-11 Koninkl Philips Electronics Nv 大出力電流増幅器
DE10137091A1 (de) * 2001-07-30 2003-02-13 Sick Ag Induktiver Näherungssensor
US20040041945A1 (en) * 2001-09-25 2004-03-04 Pugel Michael Anthony Apparatus and method for optimizing the level of rf signals
JP4365575B2 (ja) * 2002-11-20 2009-11-18 アルプス電気株式会社 テレビジョンチューナの発振回路
CN103546150A (zh) * 2013-10-25 2014-01-29 苏州贝克微电子有限公司 一种低噪声恒定振幅振荡器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU601336B2 (en) * 1988-08-05 1990-09-06 Matsushita Electric Industrial Co., Ltd. Amplifier
GB2228154B (en) * 1989-02-09 1993-04-21 Plessey Co Plc On-chip integrated oscillator circuits
IT1230536B (it) 1989-08-07 1991-10-28 Sgs Thomson Microelectronics Oscillatore variabile controllato in tensione, in particolare per circuiti ad aggancio di fase.
JP2610361B2 (ja) * 1990-07-19 1997-05-14 株式会社東芝 半導体集積回路
EP0509124B1 (de) * 1991-04-19 1996-03-27 Siemens Aktiengesellschaft Oszillatorschaltung

Also Published As

Publication number Publication date
CN1135696A (zh) 1996-11-13
FR2730363A1 (fr) 1996-08-09
CN1091999C (zh) 2002-10-02
EP0726648A1 (fr) 1996-08-14
US5859674A (en) 1999-01-12
EP0726648B1 (fr) 2001-10-24
DE69616105D1 (de) 2001-11-29
JPH08265202A (ja) 1996-10-11
DE69616105T2 (de) 2002-06-20
MY132214A (en) 2007-09-28

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