JPS5213703B1 - - Google Patents

Info

Publication number
JPS5213703B1
JPS5213703B1 JP46096371A JP9637171A JPS5213703B1 JP S5213703 B1 JPS5213703 B1 JP S5213703B1 JP 46096371 A JP46096371 A JP 46096371A JP 9637171 A JP9637171 A JP 9637171A JP S5213703 B1 JPS5213703 B1 JP S5213703B1
Authority
JP
Japan
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.)
Pending
Application number
JP46096371A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS5213703B1 publication Critical patent/JPS5213703B1/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • H03G3/3015—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable using diodes or transistors
    • 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
    • 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 in emitter-coupled or cascode amplifiers
    • 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
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3063—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver using at least one transistor as controlling device, the transistor being used as a variable impedance device

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
  • Television Receiver Circuits (AREA)
JP46096371A 1970-12-15 1971-12-01 Pending JPS5213703B1 (ref)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9827970A 1970-12-15 1970-12-15

Publications (1)

Publication Number Publication Date
JPS5213703B1 true JPS5213703B1 (ref) 1977-04-16

Family

ID=22268598

Family Applications (1)

Application Number Title Priority Date Filing Date
JP46096371A Pending JPS5213703B1 (ref) 1970-12-15 1971-12-01

Country Status (3)

Country Link
US (1) US3641450A (ref)
JP (1) JPS5213703B1 (ref)
NL (1) NL7117199A (ref)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5329082Y2 (ref) * 1973-08-08 1978-07-21
US3838210A (en) * 1973-10-01 1974-09-24 Gen Electric Automatic gain control system and amplifier of controllable gain
US3962650A (en) * 1973-11-21 1976-06-08 Motorola, Inc. Integrated circuit amplifier having controlled gain and stable quiescent output voltage level
JPS6013327B2 (ja) * 1975-05-07 1985-04-06 日本電気株式会社 直流制御型出力レベル調整回路
USRE30572E (en) * 1976-05-27 1981-04-07 Rca Corporation Low distortion signal amplifier arrangement
US4081758A (en) * 1976-05-27 1978-03-28 Rca Corporation Low distortion signal amplifier arrangement
JPS5320844A (en) * 1976-08-11 1978-02-25 Hitachi Ltd Gain control circuit
US4155047A (en) * 1978-01-11 1979-05-15 Baskind David Lee Voltage controlled attenuator
US4345214A (en) * 1980-04-23 1982-08-17 Rca Corporation Variable emitter degeneration gain-controlled amplifier
US4344044A (en) * 1980-04-23 1982-08-10 Rca Corporation Gain-controlled amplifier utilizing variable emitter degeneration and collector load impedance
US4344043A (en) * 1980-04-23 1982-08-10 Rca Corporation Variable load impedance gain-controlled amplifier
US4366443A (en) * 1980-06-26 1982-12-28 Rca Corporation Television intermediate frequency amplifier
US4329713A (en) * 1980-06-26 1982-05-11 Rca Corporation Television automatic gain control system
US4413235A (en) * 1981-02-23 1983-11-01 Motorola, Inc. Low temperature coefficient logarithmic electronic gain controlled amplifier
JPS592410A (ja) * 1982-06-28 1984-01-09 Sony Corp 電流増幅器
EP0205539A1 (en) * 1984-12-29 1986-12-30 Licencia Talalmanyokat Ertekesito Es Innovacios Külkereskedelmi Vallalat Active circuit element
US5880631A (en) * 1996-02-28 1999-03-09 Qualcomm Incorporated High dynamic range variable gain amplifier
CA2274529C (en) * 1997-01-27 2004-07-27 Qualcomm Incorporated High dynamic range variable gain amplifier
US6882185B1 (en) 1998-07-02 2005-04-19 Qualcomm, Incorporated Exponential current generator and method
US6684065B2 (en) 1999-12-20 2004-01-27 Broadcom Corporation Variable gain amplifier for low voltage applications
US6411132B2 (en) * 1999-12-30 2002-06-25 Intel Corporation Matched current differential amplifier
ATE315284T1 (de) * 2000-02-15 2006-02-15 Broadcom Corp Verstärker mit variabler transkonduktanz und variabler verstärkung unter verwendung einer degenerierten differenzanordnung
US6509796B2 (en) * 2000-02-15 2003-01-21 Broadcom Corporation Variable transconductance variable gain amplifier utilizing a degenerated differential pair
ATE388517T1 (de) * 2000-02-24 2008-03-15 Nxp Bv Differentiell angeordnetes transistorpaar mit mitteln zur degeneration der transkonduktanz
EP1128546A1 (en) * 2000-02-28 2001-08-29 Deutsche Thomson-Brandt Gmbh Upconverter mixer circuit
US6864723B2 (en) 2000-09-27 2005-03-08 Broadcom Corporation High-swing transconductance amplifier
US6741121B2 (en) * 2002-08-27 2004-05-25 Micron Technology, Inc. Differential amplifier common mode noise compensation
US6731150B2 (en) 2002-08-28 2004-05-04 Micron Technology, Inc. Amplifiers with variable swing control
US6693485B1 (en) * 2002-08-29 2004-02-17 Micron Technology, Inc. Differential amplifiers with increased input ranges
JP2004304775A (ja) * 2003-03-19 2004-10-28 Sanyo Electric Co Ltd 可変インピーダンス回路、可変利得型差動増幅器、乗算器、高周波回路および差動分布型増幅器
JP4054716B2 (ja) * 2003-05-16 2008-03-05 沖電気工業株式会社 可変ゲインアンプ及びａｍ変調信号受信回路及び検波回路
JP2005151460A (ja) * 2003-11-19 2005-06-09 Toyota Industries Corp Ａｍ中間周波可変利得増幅回路、可変利得増幅回路及びその半導体集積回路
US7218174B2 (en) * 2005-02-14 2007-05-15 Semiconductor Components Industries, L.L.C. Delay circuit and method therefor
GB2434494B (en) * 2006-01-24 2008-02-06 Toumaz Technology Ltd Low noise amplifier
KR101787761B1 (ko) * 2011-08-09 2017-10-18 삼성전자주식회사 Ｒｆ 증폭기
US9350308B2 (en) * 2014-06-04 2016-05-24 Analog Devices Global Gain boosted differential transconductance amplifier

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573491A (en) * 1967-08-28 1971-04-06 Ibm Video logarithmic amplifier
US3564439A (en) * 1969-05-21 1971-02-16 Bell Telephone Labor Inc Differential amplifier

Also Published As

Publication number Publication date
NL7117199A (ref) 1972-06-19
US3641450A (en) 1972-02-08

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