JPS604031U - Auto scan stop level setting circuit - Google Patents
Auto scan stop level setting circuitInfo
- Publication number
- JPS604031U JPS604031U JP9550883U JP9550883U JPS604031U JP S604031 U JPS604031 U JP S604031U JP 9550883 U JP9550883 U JP 9550883U JP 9550883 U JP9550883 U JP 9550883U JP S604031 U JPS604031 U JP S604031U
- Authority
- JP
- Japan
- Prior art keywords
- auto scan
- level setting
- stop level
- setting circuit
- scan stop
- 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
- Channel Selection Circuits, Automatic Tuning Circuits (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
第１図は従来のオートスキャンストップレベル設定回路
の構成図、第２図は本考案の一実施例におけるオートス
キャンストップレベル設定回路の構成図である。
１・・・・・・ＦＭ用ＩＦアンプＩＣ１２・・・・・・
入力信号に比例した直流電圧を出力する端子、３・・・
・・・スイッチング用トランジスタ、４〜６・・・・・
・トランジスタ３のバイアス設定用抵抗。FIG. 1 is a block diagram of a conventional auto scan stop level setting circuit, and FIG. 2 is a block diagram of an auto scan stop level setting circuit according to an embodiment of the present invention. 1...FM IF amplifier IC12...
A terminal that outputs a DC voltage proportional to the input signal, 3...
...Switching transistors, 4 to 6...
・Resistance for bias setting of transistor 3.
Claims (1)
Ｍ中間周波増幅器と、前記端子から出力される直流電圧
で制御されるトランジスタスイッチング回路とを備え、
オートスキャン時にシンセサイザ用回路から出力される
ミューティング信号を上記スイッチングトランジスタの
エミッタに接続し、オートスキャン時の上記スイッチン
グトランジスタの動作電圧を変化させるように構成した
ことを特徴とするオートスキャンストップレベル設定回
路。F equipped with a terminal that outputs a DC voltage proportional to the input signal
M intermediate frequency amplifier, and a transistor switching circuit controlled by the DC voltage output from the terminal,
An auto scan stop level setting characterized in that a muting signal output from a synthesizer circuit during auto scan is connected to the emitter of the switching transistor to change the operating voltage of the switching transistor during auto scan. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9550883U JPS604031U (en) | 1983-06-20 | 1983-06-20 | Auto scan stop level setting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9550883U JPS604031U (en) | 1983-06-20 | 1983-06-20 | Auto scan stop level setting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS604031U true JPS604031U (en) | 1985-01-12 |
Family
ID=30228050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9550883U Pending JPS604031U (en) | 1983-06-20 | 1983-06-20 | Auto scan stop level setting circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS604031U (en) |
-
1983
- 1983-06-20 JP JP9550883U patent/JPS604031U/en active Pending
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