JPH0127603B2 - - Google Patents

Info

Publication number
JPH0127603B2
JPH0127603B2 JP24868684A JP24868684A JPH0127603B2 JP H0127603 B2 JPH0127603 B2 JP H0127603B2 JP 24868684 A JP24868684 A JP 24868684A JP 24868684 A JP24868684 A JP 24868684A JP H0127603 B2 JPH0127603 B2 JP H0127603B2
Authority
JP
Japan
Prior art keywords
resistor
gain control
control circuit
circuit
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.)
Expired
Application number
JP24868684A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60137110A (ja
Inventor
Kohei Ishizuka
Yasuhiro Kita
Shigemichi Maeda
Masahiro Furuya
Kazuhiko Takaoka
Garo Kokuryo
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 Denshi KK
Hitachi Ltd
Original Assignee
Hitachi Denshi KK
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 Denshi KK, Hitachi Ltd filed Critical Hitachi Denshi KK
Priority to JP24868684A priority Critical patent/JPS60137110A/ja
Publication of JPS60137110A publication Critical patent/JPS60137110A/ja
Publication of JPH0127603B2 publication Critical patent/JPH0127603B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G3/00Gain control in amplifiers or frequency changers
    • H03G3/001Digital control of analog signals

Landscapes

  • Control Of Amplification And Gain Control (AREA)
JP24868684A 1984-11-27 1984-11-27 利得制御回路 Granted JPS60137110A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24868684A JPS60137110A (ja) 1984-11-27 1984-11-27 利得制御回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24868684A JPS60137110A (ja) 1984-11-27 1984-11-27 利得制御回路

Publications (2)

Publication Number Publication Date
JPS60137110A JPS60137110A (ja) 1985-07-20
JPH0127603B2 true JPH0127603B2 (de) 1989-05-30

Family

ID=17181824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24868684A Granted JPS60137110A (ja) 1984-11-27 1984-11-27 利得制御回路

Country Status (1)

Country Link
JP (1) JPS60137110A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5623228A (en) * 1993-05-17 1997-04-22 Dan Inbar Non-linear feedback network providing a linear transfer function
US7545209B2 (en) * 2006-09-07 2009-06-09 National Semiconductor Corporation Gain adjustment for programmable gain amplifiers
JP4863085B2 (ja) * 2007-06-25 2012-01-25 アイシン精機株式会社 エンジン排ガス用浄化装置およびエンジン駆動式空気調和機

Also Published As

Publication number Publication date
JPS60137110A (ja) 1985-07-20

Similar Documents

Publication Publication Date Title
US4468607A (en) Ladder-type signal attenuator
US5486791A (en) Programmable gain amplifier
JP3450336B2 (ja) 能動電流分割を使用したd/a変換器およびfirフィルタの組合せ並びに方法
CA1124806A (en) Gain control circuit
JP2532212B2 (ja) 可変減衰器
US5283580A (en) Current/resistor digital-to-analog converter having enhanced integral linearity and method of operation
WO2001013513A1 (en) Programmable low noise cmos differential voltage controlled logarithmic attenuator and method
JPH07249951A (ja) 抵抗網回路装置およびこれを用いた可変利得装置
US4628276A (en) Logarithmically linearly controlled variable gain amplifier
US5349353A (en) Method and apparatus for mixed analog and digital processing of delta modulated pulse streams including digital-to-analog conversion of a digital input signal
US5625357A (en) Current steering semi-digital reconstruction filter
US5973566A (en) Discrete step variable gain inverting amplifier with constant ratio between adjacent gains
EP0026579B1 (de) System zur Digital-Analog-Wandlung
JPH0127603B2 (de)
JPS6313572B2 (de)
JPH07254830A (ja) 電子ボリューム回路
JPS62173809A (ja) 増幅装置
JPH04160912A (ja) 電子ボリューム
JPH0595239A (ja) レベル制御回路
JP2993449B2 (ja) ステップアッテネータ
JP4402201B2 (ja) ステップアッテネータ
JPS5827415A (ja) 可変減衰器
JPS61145918A (ja) 電子ボリユ−ム回路
JPH0221780Y2 (de)
JPH0450646Y2 (de)