JPH0358022U - - Google Patents
Info
- Publication number
- JPH0358022U JPH0358022U JP11947189U JP11947189U JPH0358022U JP H0358022 U JPH0358022 U JP H0358022U JP 11947189 U JP11947189 U JP 11947189U JP 11947189 U JP11947189 U JP 11947189U JP H0358022 U JPH0358022 U JP H0358022U
- Authority
- JP
- Japan
- Prior art keywords
- pair
- circuit
- input
- signal
- transistors
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Amplifiers (AREA)
Description
第１図は本考案の実施例であり、ミユーテイン
グ回路を示すブロツク図、第２図は動作を説明す
るタイミングチヤート図である。第３図は従来の
ミユーテイング回路を示す図である。
１１……プリアンプ、１４……メインアンプ、
１７，１８，１９……第１の時定数回路、１７，
２０，２１……第２の時定数回路、２２……ＮＰ
Ｎトランジスタ、２３……ＰＮＰトランジスタ、
２４……信号ライン。
FIG. 1 shows an embodiment of the present invention, and is a block diagram showing a muting circuit, and FIG. 2 is a timing chart explaining the operation. FIG. 3 is a diagram showing a conventional muting circuit. 11... Preamplifier, 14... Main amplifier,
17, 18, 19...first time constant circuit, 17,
20, 21...second time constant circuit, 22...NP
N transistor, 23...PNP transistor,
24...Signal line.
Claims (1)
タスイツチを増幅回路信号ラインとアース間に並
列接続すると共に、上記一対のトランジスタのベ
ース入力に電源オン・オフ信号を入力される微分
回路を設けたことを特徴とするミユーテイング回
路。 A pair of transistor switches consisting of an NPN type and a PNP type are connected in parallel between the amplifier circuit signal line and the ground, and a differentiating circuit is provided to input a power on/off signal to the base input of the pair of transistors. Muting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11947189U JPH0358022U (en) | 1989-10-12 | 1989-10-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11947189U JPH0358022U (en) | 1989-10-12 | 1989-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0358022U true JPH0358022U (en) | 1991-06-05 |
Family
ID=31667597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11947189U Pending JPH0358022U (en) | 1989-10-12 | 1989-10-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0358022U (en) |
-
1989
- 1989-10-12 JP JP11947189U patent/JPH0358022U/ja active Pending
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