JPS573408A - Variable gain amplifying circuit - Google Patents

Variable gain amplifying circuit

Info

Publication number
JPS573408A
JPS573408A JP7643480A JP7643480A JPS573408A JP S573408 A JPS573408 A JP S573408A JP 7643480 A JP7643480 A JP 7643480A JP 7643480 A JP7643480 A JP 7643480A JP S573408 A JPS573408 A JP S573408A
Authority
JP
Japan
Prior art keywords
amplifying circuit
variable gain
control signal
gain amplifying
constant voltage
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
JP7643480A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6234167B2 (enExample
Inventor
Yasuhiro Fujinobe
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 Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7643480A priority Critical patent/JPS573408A/ja
Publication of JPS573408A publication Critical patent/JPS573408A/ja
Publication of JPS6234167B2 publication Critical patent/JPS6234167B2/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
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0052—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using diodes
    • H03G1/0058—PIN-diodes

Landscapes

  • Control Of Amplification And Gain Control (AREA)
JP7643480A 1980-06-06 1980-06-06 Variable gain amplifying circuit Granted JPS573408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7643480A JPS573408A (en) 1980-06-06 1980-06-06 Variable gain amplifying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7643480A JPS573408A (en) 1980-06-06 1980-06-06 Variable gain amplifying circuit

Publications (2)

Publication Number Publication Date
JPS573408A true JPS573408A (en) 1982-01-08
JPS6234167B2 JPS6234167B2 (enExample) 1987-07-24

Family

ID=13605041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7643480A Granted JPS573408A (en) 1980-06-06 1980-06-06 Variable gain amplifying circuit

Country Status (1)

Country Link
JP (1) JPS573408A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4677392A (en) * 1985-12-16 1987-06-30 Hughes Aircraft Company Cascaded internal impedance dependent amplifier with accurate variable gain control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4677392A (en) * 1985-12-16 1987-06-30 Hughes Aircraft Company Cascaded internal impedance dependent amplifier with accurate variable gain control

Also Published As

Publication number Publication date
JPS6234167B2 (enExample) 1987-07-24

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