WO2004030207A3 - 可変利得増幅器 - Google Patents

可変利得増幅器 Download PDF

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Publication number
WO2004030207A3
WO2004030207A3 PCT/JP2003/011396 JP0311396W WO2004030207A3 WO 2004030207 A3 WO2004030207 A3 WO 2004030207A3 JP 0311396 W JP0311396 W JP 0311396W WO 2004030207 A3 WO2004030207 A3 WO 2004030207A3
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
variable gain
gain amplifier
signal
control signal
Prior art date
Application number
PCT/JP2003/011396
Other languages
English (en)
French (fr)
Other versions
WO2004030207A2 (ja
Inventor
Tsuyoshi Sakuma
Koichi Ooya
Original Assignee
Sony Corp
Tsuyoshi Sakuma
Koichi Ooya
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 Sony Corp, Tsuyoshi Sakuma, Koichi Ooya filed Critical Sony Corp
Publication of WO2004030207A2 publication Critical patent/WO2004030207A2/ja
Publication of WO2004030207A3 publication Critical patent/WO2004030207A3/ja

Links

Classifications

    • 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
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0082—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using bipolar transistor-type devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
    • H03F1/22—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively
    • H03F1/223—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively with MOSFET's
    • 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
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45183—Long tailed pairs
    • H03F3/45188—Non-folded cascode stages
    • 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
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/007—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using FET type devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)

Abstract

　本発明は、可変利得増幅器であり、第１の電界効果トランジスタ（２２）のドレイン端子Ｄ３と、第１のバイポーラ型トランジスタ（２３）のエミッタ端子Ｅ３とをカスケードに接続し、ゲート端子Ｇ３から情報信号を入力し、ベース端子Ｇ３から制御信号を入力し、制御信号により制御された情報信号をコレクタ端子Ｃ３から出力することにより、十分な歪み特性を有する信号を出力する。
PCT/JP2003/011396 2002-09-27 2003-09-05 可変利得増幅器 WO2004030207A2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002-284176 2002-09-27
JP2002284176A JP2004120634A (ja) 2002-09-27 2002-09-27 可変利得増幅器

Publications (2)

Publication Number Publication Date
WO2004030207A2 WO2004030207A2 (ja) 2004-04-08
WO2004030207A3 true WO2004030207A3 (ja) 2004-05-13

Family

ID=32040580

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/011396 WO2004030207A2 (ja) 2002-09-27 2003-09-05 可変利得増幅器

Country Status (2)

Country Link
JP (1) JP2004120634A (ja)
WO (1) WO2004030207A2 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8106720B2 (en) * 2005-11-18 2012-01-31 Nxp B.V. Polar modulation apparatus and method with common-mode control
JP6641522B2 (ja) * 2017-02-22 2020-02-05 三菱電機株式会社 高周波増幅器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4890653A (ja) * 1972-03-06 1973-11-26
JPS5360546A (en) * 1976-11-12 1978-05-31 Hitachi Ltd Amplifier
JPS5551030U (ja) * 1978-09-27 1980-04-03
JPS59195824U (ja) * 1983-06-15 1984-12-26 日本電気株式会社 利得制御回路
JPS62122307A (ja) * 1985-08-28 1987-06-03 Toshiba Corp 利得制御増幅回路
JPH0697851A (ja) * 1991-03-11 1994-04-08 Alps Electric Co Ltd 中間周波増幅回路およびチューナ
JPH06334454A (ja) * 1993-05-26 1994-12-02 Hitachi Ltd 可変利得増幅器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4890653A (ja) * 1972-03-06 1973-11-26
JPS5360546A (en) * 1976-11-12 1978-05-31 Hitachi Ltd Amplifier
JPS5551030U (ja) * 1978-09-27 1980-04-03
JPS59195824U (ja) * 1983-06-15 1984-12-26 日本電気株式会社 利得制御回路
JPS62122307A (ja) * 1985-08-28 1987-06-03 Toshiba Corp 利得制御増幅回路
JPH0697851A (ja) * 1991-03-11 1994-04-08 Alps Electric Co Ltd 中間周波増幅回路およびチューナ
JPH06334454A (ja) * 1993-05-26 1994-12-02 Hitachi Ltd 可変利得増幅器

Also Published As

Publication number Publication date
WO2004030207A2 (ja) 2004-04-08
JP2004120634A (ja) 2004-04-15

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