JPS59189331U - multiple band radio receiver - Google Patents
multiple band radio receiverInfo
- Publication number
- JPS59189331U JPS59189331U JP8437683U JP8437683U JPS59189331U JP S59189331 U JPS59189331 U JP S59189331U JP 8437683 U JP8437683 U JP 8437683U JP 8437683 U JP8437683 U JP 8437683U JP S59189331 U JPS59189331 U JP S59189331U
- Authority
- JP
- Japan
- Prior art keywords
- bias
- radio receiver
- switching
- band radio
- controlled oscillator
- 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)
- Superheterodyne Receivers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (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
図は本考案に係る複数バンドラジオ受信機のブロックダ
イヤグラムを示すものである。
１はアンテナ入力端子及びＡＭ−ＦＭ検波出力端子を有
するフロントエンド、中間周波数増幅回路及び検波回路
を含むＩＣ，２は周波数調整回路、３はＦＭステレオ復
調回路を含むＩＣＸ５は切換えスイッチ、Ｑはスイッチ
ングトランジスタ。The figure shows a block diagram of a multi-band radio receiver according to the present invention. 1 is an IC including a front end having an antenna input terminal and an AM-FM detection output terminal, an intermediate frequency amplification circuit and a detection circuit, 2 is a frequency adjustment circuit, and 3 is an FM stereo demodulation circuit. ICX5 is a changeover switch, and Q is a switching transistor.
Claims (1)
とによりバンド切換えを行い、ＡＭ及びＦＭ検波出力が
共に出力される線路に対しては周波数調整回路を接続・
離脱させることによりパン。 ド切換えを行い、ＦＭステレオ復調を行う為の位相同期
ループに設けられた電圧制御発振器に対してはバイアス
をオン・オフすることによりバンド切換えを行う構成と
した複数バンドラジオ受信機であって、 前記電圧制御発振器に対するバイアスのオン・オフを制
御する為のスイッチング・トランジスタ及び−個の切換
えスイッチを設け、 前記フロントエンドに対するバイアスのオン・オフの制
御及び前記周波数調整回路の接続・離脱の制御を前記切
換えスイッチにて直接行い、前記電圧制御発振器に対す
るバイアスのオン・オフの制御を、前記切換えスイッチ
にて前記スイッチングトランジスタのバイアスをオン・
オフ制御することにより行うことを特徴とする複数バン
ドラジオ受信機。[Claim for Utility Model Registration] Band switching is performed by turning the bias on and off to the front end, and a frequency adjustment circuit is connected to the line where both AM and FM detection outputs are output.
Bread by detachment. A multi-band radio receiver configured to perform band switching by switching on and off bias for a voltage controlled oscillator provided in a phase-locked loop for performing FM stereo demodulation, A switching transistor and - number of changeover switches are provided for controlling on/off of the bias for the voltage controlled oscillator, and control for controlling on/off of the bias for the front end and connection/disconnection of the frequency adjustment circuit. The changeover switch directly controls the on/off of the bias for the voltage controlled oscillator, and the changeover switch directly controls the on/off of the bias of the switching transistor.
A multi-band radio receiver characterized by an off-control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8437683U JPS59189331U (en) | 1983-06-01 | 1983-06-01 | multiple band radio receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8437683U JPS59189331U (en) | 1983-06-01 | 1983-06-01 | multiple band radio receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59189331U true JPS59189331U (en) | 1984-12-15 |
Family
ID=30214324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8437683U Pending JPS59189331U (en) | 1983-06-01 | 1983-06-01 | multiple band radio receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59189331U (en) |
-
1983
- 1983-06-01 JP JP8437683U patent/JPS59189331U/en active Pending
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