JPS58138446U - Switching circuit for low frequency amplifier circuit - Google Patents
Switching circuit for low frequency amplifier circuitInfo
- Publication number
- JPS58138446U JPS58138446U JP1982032496U JP3249682U JPS58138446U JP S58138446 U JPS58138446 U JP S58138446U JP 1982032496 U JP1982032496 U JP 1982032496U JP 3249682 U JP3249682 U JP 3249682U JP S58138446 U JPS58138446 U JP S58138446U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- low frequency
- compander
- frequency amplifier
- analog switch
- 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
Landscapes
- Amplifiers (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Noise Elimination (AREA)
- Mobile Radio Communication Systems (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
第１図は従来のコンパンダ回路付低周波増幅回路の構成
図、第２図は本考案を実施したコンパンダ回路材、低周
波回路の一例図である。
Ｓｉ・・・・・・低周波入力、Ｓｏ・・・・・・低周波
出力、Ａ。
Ｂ・・・・・・制御信号、１． ４． ８． １０・・
・・・・低周波増幅器、２，９・・・・・・可変抵抗器
、３・・・・・・低周波帯域濾波器、５・・・・・・コ
ンパンダ回路、６． ７． １１−０゜・・・アナログ
スイッチ、１２〜１５・・・・・・インバータ集積回路
。FIG. 1 is a block diagram of a conventional low frequency amplifier circuit with a compander circuit, and FIG. 2 is an example diagram of a compander circuit material and a low frequency circuit implementing the present invention. Si...Low frequency input, So...Low frequency output, A. B... Control signal, 1. 4. 8. 10...
. . . Low frequency amplifier, 2, 9 . . . Variable resistor, 3 . . . Low frequency bandpass filter, 5 . . . Compander circuit, 6. 7. 11-0°...Analog switch, 12-15...Inverter integrated circuit.
Claims (1)
ンパンダに続けて回路に挿入された第１のアナログスイ
ッチ、コンパンダおよび第１アナログスイツチに並列に
接続された第２のアナログスイッチおよび低周波出力端
子より前段に挿入された第３のアナログスイッチと、こ
れらのアナログスイッチを複数の制御信、号によって開
閉する回路とを備え、コンパンダを回路内にとどめるか
あるいは回路から外し、または低周波出力を断とするこ
とを特徴とする低周波増幅回路の切替回路。In a low frequency amplifier circuit including a compander in the circuit, a first analog switch inserted into the circuit following the compander, a second analog switch connected in parallel to the compander and the first analog switch, and a low frequency output terminal. It is equipped with a third analog switch inserted in the previous stage and a circuit that opens and closes these analog switches using a plurality of control signals, and is capable of keeping the compander in the circuit or removing it from the circuit, or cutting off the low frequency output. A switching circuit for a low frequency amplification circuit, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982032496U JPS58138446U (en) | 1982-03-10 | 1982-03-10 | Switching circuit for low frequency amplifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982032496U JPS58138446U (en) | 1982-03-10 | 1982-03-10 | Switching circuit for low frequency amplifier circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58138446U true JPS58138446U (en) | 1983-09-17 |
Family
ID=30044096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982032496U Pending JPS58138446U (en) | 1982-03-10 | 1982-03-10 | Switching circuit for low frequency amplifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58138446U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5723951U (en) * | 1980-07-17 | 1982-02-06 |
-
1982
- 1982-03-10 JP JP1982032496U patent/JPS58138446U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5723951U (en) * | 1980-07-17 | 1982-02-06 |
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