JPS6137620U - radio receiver - Google Patents

radio receiver

Info

Publication number
JPS6137620U
JPS6137620U JP12249584U JP12249584U JPS6137620U JP S6137620 U JPS6137620 U JP S6137620U JP 12249584 U JP12249584 U JP 12249584U JP 12249584 U JP12249584 U JP 12249584U JP S6137620 U JPS6137620 U JP S6137620U
Authority
JP
Japan
Prior art keywords
output
mixer
amplifier
controlling
variable attenuator
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
JP12249584U
Other languages
Japanese (ja)
Other versions
JPH0416495Y2 (en
Inventor
恒夫 酒井
Original Assignee
アルパイン株式会社
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 アルパイン株式会社 filed Critical アルパイン株式会社
Priority to JP12249584U priority Critical patent/JPS6137620U/en
Publication of JPS6137620U publication Critical patent/JPS6137620U/en
Application granted granted Critical
Publication of JPH0416495Y2 publication Critical patent/JPH0416495Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Noise Elimination (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、本考案の一実施例を示すＡＧＣ回路、第２図
は、従来のＡＧＣ回路である。 １・・・可変減衰器、３・・・ＲＦ増幅器、５・・・混
合器、６・・・局部発振器、８・・・検波器、１１・・
・第１のＡＧＣ電圧発生器、１２・・・第２のＡＧＣ電
圧発生器、１３・・・増幅器、１４・・・レベル検出器
。FIG. 1 shows an AGC circuit showing an embodiment of the present invention, and FIG. 2 shows a conventional AGC circuit. DESCRIPTION OF SYMBOLS 1... Variable attenuator, 3... RF amplifier, 5... Mixer, 6... Local oscillator, 8... Detector, 11...
- 1st AGC voltage generator, 12... 2nd AGC voltage generator, 13... amplifier, 14... level detector.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 受信信号を減衰させる可変減衰器と、可変減衰器からの
出力を増幅するＲＦ増幅器と、ＲＦ増幅器からの出力と
局部発信器からの局発信号とを混合する混合器と、混合
器からの出力を検波する検波器と、前記混合器からの出
力によって可変減衰器を制御するための第１のＡＧＣ電
圧発生器と、前記混合器からの出力によってＲＦ増幅器
を制御するための第２のＡＧｃ電圧発生器と、前記検波
器からの出力に基づいて、第２のＡＧＣ電圧発生器を制
御するためのレベル検出器とを具備したことを特徴とす
るＡＧＣ回路。A variable attenuator that attenuates the received signal, an RF amplifier that amplifies the output from the variable attenuator, a mixer that mixes the output from the RF amplifier and the local signal from the local oscillator, and an output from the mixer. a first AGC voltage generator for controlling a variable attenuator by the output from the mixer, and a second AGc voltage for controlling the RF amplifier by the output from the mixer. An AGC circuit comprising: a generator; and a level detector for controlling a second AGC voltage generator based on the output from the detector.
JP12249584U 1984-08-10 1984-08-10 radio receiver Granted JPS6137620U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12249584U JPS6137620U (en) 1984-08-10 1984-08-10 radio receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12249584U JPS6137620U (en) 1984-08-10 1984-08-10 radio receiver

Publications (2)

Publication Number Publication Date
JPS6137620U true JPS6137620U (en) 1986-03-08
JPH0416495Y2 JPH0416495Y2 (en) 1992-04-14

Family

ID=30681249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12249584U Granted JPS6137620U (en) 1984-08-10 1984-08-10 radio receiver

Country Status (1)

Country Link
JP (1) JPS6137620U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0465907A (en) * 1990-07-03 1992-03-02 Toshiba Corp Agc circuit for fm front end section

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810933A (en) * 1981-07-14 1983-01-21 Sony Corp Agc circuit for receiver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810933A (en) * 1981-07-14 1983-01-21 Sony Corp Agc circuit for receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0465907A (en) * 1990-07-03 1992-03-02 Toshiba Corp Agc circuit for fm front end section

Also Published As

Publication number Publication date
JPH0416495Y2 (en) 1992-04-14

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