JPS5534506A - Variable gain amplifier circuit - Google Patents

Variable gain amplifier circuit

Info

Publication number
JPS5534506A
JPS5534506A JP10621178A JP10621178A JPS5534506A JP S5534506 A JPS5534506 A JP S5534506A JP 10621178 A JP10621178 A JP 10621178A JP 10621178 A JP10621178 A JP 10621178A JP S5534506 A JPS5534506 A JP S5534506A
Authority
JP
Japan
Prior art keywords
transistors
emitters
resistance
amplifier circuit
collectors
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.)
Granted
Application number
JP10621178A
Other languages
English (en)
Other versions
JPS6113403B2 (ja
Inventor
Noboru Kojima
Akira Shibata
Motohisa Yamamoto
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.)
Hitachi Ltd
Renesas Eastern Japan Semiconductor Inc
Original Assignee
Hitachi Tokyo Electronics Co Ltd
Hitachi Ltd
Hitachi Ome Electronic Co Ltd
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 Hitachi Tokyo Electronics Co Ltd, Hitachi Ltd, Hitachi Ome Electronic Co Ltd filed Critical Hitachi Tokyo Electronics Co Ltd
Priority to JP10621178A priority Critical patent/JPS5534506A/ja
Publication of JPS5534506A publication Critical patent/JPS5534506A/ja
Publication of JPS6113403B2 publication Critical patent/JPS6113403B2/ja
Granted legal-status Critical Current

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
    • H03G1/0017—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

Landscapes

  • Processing Of Color Television Signals (AREA)
  • Control Of Amplification And Gain Control (AREA)
JP10621178A 1978-09-01 1978-09-01 Variable gain amplifier circuit Granted JPS5534506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10621178A JPS5534506A (en) 1978-09-01 1978-09-01 Variable gain amplifier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10621178A JPS5534506A (en) 1978-09-01 1978-09-01 Variable gain amplifier circuit

Publications (2)

Publication Number Publication Date
JPS5534506A true JPS5534506A (en) 1980-03-11
JPS6113403B2 JPS6113403B2 (ja) 1986-04-14

Family

ID=14427810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10621178A Granted JPS5534506A (en) 1978-09-01 1978-09-01 Variable gain amplifier circuit

Country Status (1)

Country Link
JP (1) JPS5534506A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5639609A (en) * 1979-09-07 1981-04-15 Hitachi Ltd Variable gain circuit
JPS5752288A (en) * 1980-09-11 1982-03-27 Sanyo Electric Co Ltd Color gain variable circuit
JPS58189620U (ja) * 1982-06-09 1983-12-16 パイオニア株式会社 無歪逆相電流源

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5639609A (en) * 1979-09-07 1981-04-15 Hitachi Ltd Variable gain circuit
JPS5752288A (en) * 1980-09-11 1982-03-27 Sanyo Electric Co Ltd Color gain variable circuit
JPH0159797B2 (ja) * 1980-09-11 1989-12-19 Sanyo Electric Co
JPS58189620U (ja) * 1982-06-09 1983-12-16 パイオニア株式会社 無歪逆相電流源
JPH0346581Y2 (ja) * 1982-06-09 1991-10-02

Also Published As

Publication number Publication date
JPS6113403B2 (ja) 1986-04-14

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