JPS58218212A - 可変利得増幅器 - Google Patents

可変利得増幅器

Info

Publication number
JPS58218212A
JPS58218212A JP10049082A JP10049082A JPS58218212A JP S58218212 A JPS58218212 A JP S58218212A JP 10049082 A JP10049082 A JP 10049082A JP 10049082 A JP10049082 A JP 10049082A JP S58218212 A JPS58218212 A JP S58218212A
Authority
JP
Japan
Prior art keywords
circuit
amplifier
terminal
buffer circuits
gain
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
JP10049082A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0226802B2 (enExample
Inventor
Takeshi Kuwajima
桑島　健
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 JP10049082A priority Critical patent/JPS58218212A/ja
Publication of JPS58218212A publication Critical patent/JPS58218212A/ja
Publication of JPH0226802B2 publication Critical patent/JPH0226802B2/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
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated

Landscapes

  • Control Of Amplification And Gain Control (AREA)
JP10049082A 1982-06-11 1982-06-11 可変利得増幅器 Granted JPS58218212A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10049082A JPS58218212A (ja) 1982-06-11 1982-06-11 可変利得増幅器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10049082A JPS58218212A (ja) 1982-06-11 1982-06-11 可変利得増幅器

Publications (2)

Publication Number Publication Date
JPS58218212A true JPS58218212A (ja) 1983-12-19
JPH0226802B2 JPH0226802B2 (enExample) 1990-06-13

Family

ID=14275371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10049082A Granted JPS58218212A (ja) 1982-06-11 1982-06-11 可変利得増幅器

Country Status (1)

Country Link
JP (1) JPS58218212A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1643637A1 (en) * 2004-09-29 2006-04-05 Mitsumi Electric Co., Ltd. Amplifier circuit with gain control

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54181857U (enExample) * 1978-06-14 1979-12-22
JPS5693408A (en) * 1979-12-27 1981-07-29 Nec Corp Variable gain amplifier
JPS56136032A (en) * 1980-03-26 1981-10-23 Hitachi Ltd Analog switch circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54181857U (enExample) * 1978-06-14 1979-12-22
JPS5693408A (en) * 1979-12-27 1981-07-29 Nec Corp Variable gain amplifier
JPS56136032A (en) * 1980-03-26 1981-10-23 Hitachi Ltd Analog switch circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1643637A1 (en) * 2004-09-29 2006-04-05 Mitsumi Electric Co., Ltd. Amplifier circuit with gain control
US7345546B2 (en) 2004-09-29 2008-03-18 Mitsumi Electric Co., Ltd. Amplifier circuit and input circuit

Also Published As

Publication number Publication date
JPH0226802B2 (enExample) 1990-06-13

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