JPS623137U - - Google Patents
Info
- Publication number
- JPS623137U JPS623137U JP9487485U JP9487485U JPS623137U JP S623137 U JPS623137 U JP S623137U JP 9487485 U JP9487485 U JP 9487485U JP 9487485 U JP9487485 U JP 9487485U JP S623137 U JPS623137 U JP S623137U
- Authority
- JP
- Japan
- Prior art keywords
- demodulation
- control terminal
- demodulation circuit
- stereo
- power supply
- 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
- Stereo-Broadcasting Methods (AREA)
Description
図面は本考案のＦＭ／ＡＭステレオ復調機能の
選択装置の回路図である。
１……直流電源、２……ＦＭ／ＡＭ切換スイツ
チ、３……ＦＭステレオ復調用ＩＣ、４……ＡＭ
ステレオ復調用ＩＣ、１０……選択スイツチ、Ｑ
……スイツチング用トランジスタ。
The drawing is a circuit diagram of an FM/AM stereo demodulation function selection device according to the present invention. 1...DC power supply, 2...FM/AM selector switch, 3...FM stereo demodulation IC, 4...AM
Stereo demodulation IC, 10...Selection switch, Q
...Switching transistor.
Claims (1)
路およびＡＭ復調回路と、これらの復調回路の一
方に電源電圧を切換えて供給するＦＭ／ＡＭ切換
スイツチとを備え、 一方の復調回路に設けた制御端子に電源電圧が
印加されるとステレオ復調がなされ、他方の復調
回路に設けた制御端子に電源電圧が印加されると
モノラル復調がなされ、前記電源電圧がモノラル
復調、ステレオ復調を選択する選択スイツチを介
して一方の復調回路の制御端子に接続されるとと
もに、スイツチング素子を介して他方の復調回路
の制御端子に接続されてなることを特徴とするＦ
Ｍ／ＡＭステレオ復調機能の選択装置。[Claims for Utility Model Registration] An FM demodulation circuit and an AM demodulation circuit capable of stereo and monaural demodulation, and an FM/AM changeover switch that switches and supplies a power supply voltage to one of these demodulation circuits. When a power supply voltage is applied to a control terminal provided on the demodulation circuit, stereo demodulation is performed, and when a power supply voltage is applied to a control terminal provided on the other demodulation circuit, monaural demodulation is performed. The F is characterized in that it is connected to the control terminal of one demodulation circuit via a selection switch for selecting demodulation, and is connected to the control terminal of the other demodulation circuit via a switching element.
M/AM stereo demodulation function selection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9487485U JPS623137U (en) | 1985-06-21 | 1985-06-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9487485U JPS623137U (en) | 1985-06-21 | 1985-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS623137U true JPS623137U (en) | 1987-01-09 |
Family
ID=30653701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9487485U Pending JPS623137U (en) | 1985-06-21 | 1985-06-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS623137U (en) |
-
1985
- 1985-06-21 JP JP9487485U patent/JPS623137U/ja active Pending
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