JPS59161109A - 可変利得増幅器 - Google Patents

可変利得増幅器

Info

Publication number
JPS59161109A
JPS59161109A JP3545883A JP3545883A JPS59161109A JP S59161109 A JPS59161109 A JP S59161109A JP 3545883 A JP3545883 A JP 3545883A JP 3545883 A JP3545883 A JP 3545883A JP S59161109 A JPS59161109 A JP S59161109A
Authority
JP
Japan
Prior art keywords
resistance
switch
input terminal
gain
amplifier
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
JP3545883A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0324812B2 (OSRAM
Inventor
Akihiko Takada
昭彦 高田
Kiyoshi Taniguchi
清 谷口
Takafumi Nakajo
中条　孝文
Tadakatsu Kimura
木村　忠勝
Masayuki Ishikawa
正幸 石川
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.)
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
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 Fujitsu Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Priority to JP3545883A priority Critical patent/JPS59161109A/ja
Publication of JPS59161109A publication Critical patent/JPS59161109A/ja
Publication of JPH0324812B2 publication Critical patent/JPH0324812B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/001—Digital control of analog signals

Landscapes

  • Control Of Amplification And Gain Control (AREA)
JP3545883A 1983-03-04 1983-03-04 可変利得増幅器 Granted JPS59161109A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3545883A JPS59161109A (ja) 1983-03-04 1983-03-04 可変利得増幅器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3545883A JPS59161109A (ja) 1983-03-04 1983-03-04 可変利得増幅器

Publications (2)

Publication Number Publication Date
JPS59161109A true JPS59161109A (ja) 1984-09-11
JPH0324812B2 JPH0324812B2 (OSRAM) 1991-04-04

Family

ID=12442342

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3545883A Granted JPS59161109A (ja) 1983-03-04 1983-03-04 可変利得増幅器

Country Status (1)

Country Link
JP (1) JPS59161109A (OSRAM)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61154016U (OSRAM) * 1985-03-15 1986-09-24
JPS62111510A (ja) * 1985-11-11 1987-05-22 Nec Corp 増幅回路
JP2008098771A (ja) * 2006-10-06 2008-04-24 Niigata Seimitsu Kk 低雑音増幅器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5316562A (en) * 1976-06-16 1978-02-15 Sterndent Corp Amplifier circuit
JPS57162808A (en) * 1981-03-31 1982-10-06 Tektronix Inc Variable gain amplifier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5316562A (en) * 1976-06-16 1978-02-15 Sterndent Corp Amplifier circuit
JPS57162808A (en) * 1981-03-31 1982-10-06 Tektronix Inc Variable gain amplifier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61154016U (OSRAM) * 1985-03-15 1986-09-24
JPS62111510A (ja) * 1985-11-11 1987-05-22 Nec Corp 増幅回路
JP2008098771A (ja) * 2006-10-06 2008-04-24 Niigata Seimitsu Kk 低雑音増幅器

Also Published As

Publication number Publication date
JPH0324812B2 (OSRAM) 1991-04-04

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