JPS522365A - Variable attenuator circuit - Google Patents

Variable attenuator circuit

Info

Publication number
JPS522365A
JPS522365A JP7886175A JP7886175A JPS522365A JP S522365 A JPS522365 A JP S522365A JP 7886175 A JP7886175 A JP 7886175A JP 7886175 A JP7886175 A JP 7886175A JP S522365 A JPS522365 A JP S522365A
Authority
JP
Japan
Prior art keywords
variable attenuator
attenuator circuit
variable
receiver
circuits
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
JP7886175A
Other languages
Japanese (ja)
Other versions
JPS5628402B2 (en
Inventor
Shinichi Ohashi
Akihiro Asada
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
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP7886175A priority Critical patent/JPS522365A/en
Publication of JPS522365A publication Critical patent/JPS522365A/en
Publication of JPS5628402B2 publication Critical patent/JPS5628402B2/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

  • Networks Using Active Elements (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To improve control straight-line characteristics, by using IC circuits for a variable band pass filter BPF of voice recording playback equipment, a variable tuning circuit of a receiver, and the like.
JP7886175A 1975-06-24 1975-06-24 Variable attenuator circuit Granted JPS522365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7886175A JPS522365A (en) 1975-06-24 1975-06-24 Variable attenuator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7886175A JPS522365A (en) 1975-06-24 1975-06-24 Variable attenuator circuit

Publications (2)

Publication Number Publication Date
JPS522365A true JPS522365A (en) 1977-01-10
JPS5628402B2 JPS5628402B2 (en) 1981-07-01

Family

ID=13673598

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7886175A Granted JPS522365A (en) 1975-06-24 1975-06-24 Variable attenuator circuit

Country Status (1)

Country Link
JP (1) JPS522365A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53121447A (en) * 1977-03-30 1978-10-23 Nec Corp Automatic gain control circuit
JPS57208718A (en) * 1981-06-18 1982-12-21 Pioneer Electronic Corp Control circuit for voltage controlled variable attenuator
US5218318A (en) * 1991-02-14 1993-06-08 Leader Electronics Corp. Variable gain amplifier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5893501U (en) * 1981-12-21 1983-06-24 柳河精機株式会社 vehicle wheels

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4869458A (en) * 1971-12-22 1973-09-20

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4869458A (en) * 1971-12-22 1973-09-20

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53121447A (en) * 1977-03-30 1978-10-23 Nec Corp Automatic gain control circuit
JPS615288B2 (en) * 1977-03-30 1986-02-17 Nippon Electric Co
JPS57208718A (en) * 1981-06-18 1982-12-21 Pioneer Electronic Corp Control circuit for voltage controlled variable attenuator
JPH0319723B2 (en) * 1981-06-18 1991-03-15 Pioneer Electronic Corp
US5218318A (en) * 1991-02-14 1993-06-08 Leader Electronics Corp. Variable gain amplifier

Also Published As

Publication number Publication date
JPS5628402B2 (en) 1981-07-01

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