DE69931673D1 - Verstärker mit variabler Verstärkung - Google Patents

Verstärker mit variabler Verstärkung

Info

Publication number
DE69931673D1
DE69931673D1 DE69931673T DE69931673T DE69931673D1 DE 69931673 D1 DE69931673 D1 DE 69931673D1 DE 69931673 T DE69931673 T DE 69931673T DE 69931673 T DE69931673 T DE 69931673T DE 69931673 D1 DE69931673 D1 DE 69931673D1
Authority
DE
Germany
Prior art keywords
amplifier
variable gain
gain
variable
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69931673T
Other languages
English (en)
Other versions
DE69931673T2 (de
Inventor
Hisaya Ishihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Electronics Corp
Original Assignee
NEC Electronics Corp
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 NEC Electronics Corp filed Critical NEC Electronics Corp
Application granted granted Critical
Publication of DE69931673D1 publication Critical patent/DE69931673D1/de
Publication of DE69931673T2 publication Critical patent/DE69931673T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated control
    • H03G3/04—Manually-operated control in untuned amplifiers
    • H03G3/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • 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
DE69931673T 1998-02-20 1999-02-17 Verstärker mit variabler Verstärkung Expired - Fee Related DE69931673T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3917498 1998-02-20
JP10039174A JP2990147B2 (ja) 1998-02-20 1998-02-20 利得可変増幅回路

Publications (2)

Publication Number Publication Date
DE69931673D1 true DE69931673D1 (de) 2006-07-20
DE69931673T2 DE69931673T2 (de) 2007-05-31

Family

ID=12545763

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69931673T Expired - Fee Related DE69931673T2 (de) 1998-02-20 1999-02-17 Verstärker mit variabler Verstärkung

Country Status (6)

Country Link
US (1) US6177839B1 (de)
EP (1) EP0938188B1 (de)
JP (1) JP2990147B2 (de)
KR (1) KR100342456B1 (de)
CN (1) CN1126244C (de)
DE (1) DE69931673T2 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10155912A1 (de) * 2000-11-30 2002-10-10 Philips Corp Intellectual Pty Steuerbare Verstärkeranordnung und Anordnung zum Verarbeiten elektrischer Signale mit wenigstens einer solchen Verstärkeranordnung
CN1306697C (zh) * 2001-02-14 2007-03-21 矽统科技股份有限公司 应用于可变增益放大器的直流偏移消除电路
KR100468358B1 (ko) * 2002-05-29 2005-01-27 인티그런트 테크놀로지즈(주) 이득 곡선의 기울기 특성이 향상된 가변 이득 증폭기
US7116955B2 (en) * 2002-09-24 2006-10-03 Ati Technologies, Inc. Dual loop automatic gain control
JP4045959B2 (ja) * 2003-01-20 2008-02-13 日本電気株式会社 利得可変電圧・電流変換回路とこれを用いたフィルタ回路
JP4624221B2 (ja) * 2005-09-12 2011-02-02 三洋電機株式会社 差動型オペアンプ
JP2007174029A (ja) * 2005-12-20 2007-07-05 Oki Electric Ind Co Ltd 利得可変回路及びそれを用いた自動利得制御増幅器
GB2436651B (en) * 2006-03-30 2008-02-20 Matsushita Electric Ind Co Ltd Variable gain low noise amplifier
JP2008141358A (ja) * 2006-11-30 2008-06-19 Mitsumi Electric Co Ltd 利得可変増幅回路
CN101013911B (zh) * 2007-02-13 2011-06-01 展讯通信（上海）有限公司 射频可变增益放大器控制电路及增益控制方法
CN101373957B (zh) * 2007-08-24 2010-08-25 锐迪科创微电子（北京）有限公司 数字增益控制方法及电路
TWI481188B (zh) * 2009-11-16 2015-04-11 Hangzhou Silan Microelect Co Adjustable gain amplifier
CN103262419B (zh) * 2010-07-19 2017-08-15 美国国家半导体公司 具有分段粗糙控制和精细控制的自适应信号均衡器
CN103166586B (zh) * 2011-12-12 2016-07-06 联咏科技股份有限公司 可变增益放大器电路
CN102780463B (zh) * 2012-07-25 2017-02-08 哈尔滨理工大学 线性放大器高压级联装置及方法
CN103368506B (zh) * 2013-07-31 2016-01-27 中国科学院微电子研究所 宽带可变增益放大器
CN104682905B (zh) * 2014-12-26 2017-08-11 北京航天测控技术有限公司 一种超宽带可变增益放大装置
US10367466B2 (en) * 2017-11-03 2019-07-30 Huawei Technologies Co., Ltd. Hybrid variable gain amplifier
CN115885470A (zh) * 2020-12-30 2023-03-31 华为技术有限公司 一种运算放大器、驱动电路、接口芯片及电子设备
CN112838832B (zh) * 2020-12-31 2024-03-08 锐石创芯(深圳)科技股份有限公司 一种差分放大电路
CN117411445B (zh) * 2023-12-12 2024-03-12 成都明夷电子科技有限公司 一种光接收机用宽带可变增益放大器

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5799810A (en) * 1980-12-12 1982-06-21 Matsushita Electric Ind Co Ltd Signal controller
JPS58200612A (ja) 1982-05-19 1983-11-22 Hitachi Ltd 利得制御装置
JPS6133006A (ja) * 1984-07-25 1986-02-15 Nec Corp Ａｇｃ回路
JPS61157015A (ja) * 1984-12-28 1986-07-16 Mitsubishi Electric Corp 可変利得増幅器
JPS6271311A (ja) * 1985-09-25 1987-04-02 Toshiba Corp 可変利得回路
JPS62110307A (ja) * 1985-11-08 1987-05-21 Sony Corp 可変利得回路
JPS62183207A (ja) * 1986-02-07 1987-08-11 Hitachi Ltd 利得可変増幅器
US4787748A (en) * 1987-05-06 1988-11-29 Canadian Patents And Development Limited Synchronous optical scanning apparatus
FR2616518B1 (fr) * 1987-06-11 1990-11-30 Gaz De France Tube interne en ceramique notamment pour tube radiant en doigt de gant a recirculation
JPH0630424B2 (ja) * 1987-06-26 1994-04-20 日本電気株式会社 利得可変型増幅回路
JPH077894B2 (ja) * 1989-06-29 1995-01-30 日本電気株式会社 電圧制御増幅器
JPH077895B2 (ja) * 1989-07-14 1995-01-30 日本電気株式会社 可変利得増幅器
JPH03153113A (ja) * 1989-11-10 1991-07-01 Sanyo Electric Co Ltd 可変利得増幅器
JPH03214912A (ja) * 1990-01-19 1991-09-20 Toshiba Corp 自動利得制御回路
JPH05259768A (ja) * 1992-03-13 1993-10-08 Fujitsu Ltd 出力動作点補償の可変利得増幅器
GB2303507B (en) * 1995-07-21 2000-03-08 Nec Corp Low-voltage bipolar OTA having a linearity in transconductance over a wide input voltage range
JPH1041750A (ja) 1996-07-26 1998-02-13 New Japan Radio Co Ltd 利得制御周波数変換回路
US5867778A (en) * 1997-12-24 1999-02-02 Northern Telecom Limited Switched gain element

Also Published As

Publication number Publication date
EP0938188A2 (de) 1999-08-25
CN1234649A (zh) 1999-11-10
CN1126244C (zh) 2003-10-29
KR19990072771A (ko) 1999-09-27
DE69931673T2 (de) 2007-05-31
EP0938188A3 (de) 2001-03-21
KR100342456B1 (ko) 2002-06-28
JP2990147B2 (ja) 1999-12-13
EP0938188B1 (de) 2006-06-07
US6177839B1 (en) 2001-01-23
JPH11239034A (ja) 1999-08-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee