JPS61319U - Receiver automatic gain control circuit - Google Patents
Receiver automatic gain control circuitInfo
- Publication number
- JPS61319U JPS61319U JP8341084U JP8341084U JPS61319U JP S61319 U JPS61319 U JP S61319U JP 8341084 U JP8341084 U JP 8341084U JP 8341084 U JP8341084 U JP 8341084U JP S61319 U JPS61319 U JP S61319U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- gain control
- control circuit
- automatic gain
- frequency 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.)
- Pending
Links
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
第１図は、本考案の一実施例を示す自動利得制御回路の
ブロック図、第２図は、従来の自動利得制御回路のブロ
ック図、第３図ａ，’ ｂ， ｃは動作を説明するた
めの図である。
３・・・高周波増幅器、４・・・同調器、５・・・混合
器、７，７・・・中間周波増幅器、９・・・ＡＧＣ回路
、１０・・・ＡＧＣドライブ回路、１１・・・反転器。Fig. 1 is a block diagram of an automatic gain control circuit showing an embodiment of the present invention, Fig. 2 is a block diagram of a conventional automatic gain control circuit, and Figs. 3a, 'b, and c explain the operation. This is a diagram for 3... High frequency amplifier, 4... Tuner, 5... Mixer, 7, 7... Intermediate frequency amplifier, 9... AGC circuit, 10... AGC drive circuit, 11... Inverter.
Claims (1)
幅器からの増幅出力と局部発振器からの局発信号とを混
合する混合器と、該混合器からの中間周波信号を増幅す
る中間周波増幅器と、前記混合器からの中間周波信号の
振幅に対応した直流信号を出力するＡＧＣ回路と、該Ａ
ＧＣ回路からの直流信号によって前記高周波増幅器と前
記中間周波増幅器とを制御するための信号を出力するＡ
ＧＣドライブ回路とから成ることを特徴とする受信機の
自動利得制御回路。a high frequency amplifier for amplifying a received signal, a mixer for mixing the amplified output from the high frequency amplifier and a local signal from a local oscillator, and an intermediate frequency amplifier for amplifying the intermediate frequency signal from the mixer; an AGC circuit that outputs a DC signal corresponding to the amplitude of the intermediate frequency signal from the mixer;
A that outputs a signal for controlling the high frequency amplifier and the intermediate frequency amplifier using a DC signal from a GC circuit;
An automatic gain control circuit for a receiver, comprising a GC drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8341084U JPS61319U (en) | 1984-06-05 | 1984-06-05 | Receiver automatic gain control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8341084U JPS61319U (en) | 1984-06-05 | 1984-06-05 | Receiver automatic gain control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61319U true JPS61319U (en) | 1986-01-06 |
Family
ID=30632016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8341084U Pending JPS61319U (en) | 1984-06-05 | 1984-06-05 | Receiver automatic gain control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0245900U (en) * | 1988-09-26 | 1990-03-29 |
-
1984
- 1984-06-05 JP JP8341084U patent/JPS61319U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0245900U (en) * | 1988-09-26 | 1990-03-29 |
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