JPS5834447U - FM demodulator - Google Patents
FM demodulatorInfo
- Publication number
- JPS5834447U JPS5834447U JP12745481U JP12745481U JPS5834447U JP S5834447 U JPS5834447 U JP S5834447U JP 12745481 U JP12745481 U JP 12745481U JP 12745481 U JP12745481 U JP 12745481U JP S5834447 U JPS5834447 U JP S5834447U
- Authority
- JP
- Japan
- Prior art keywords
- output signal
- circuit
- demodulation circuit
- signal
- demodulation
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Noise Elimination (AREA)
- Circuits Of Receivers In General (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ＦＭ復調装置の一例を示す構成図、
第２図はこの考案に係わるＦＭ復調装置の一実施例を示
す構成図である。
１２・・・ＦＭ復調回路、１４・・・包絡線検波回路、
２１・・・ＡＧＣ増幅器、２２・・・高域通過フィルタ
、２３・・・ＡＧＣ制御回路。Figure 1 is a configuration diagram showing an example of a conventional FM demodulator;
FIG. 2 is a block diagram showing an embodiment of an FM demodulator according to this invention. 12...FM demodulation circuit, 14...Envelope detection circuit,
21...AGC amplifier, 22...High pass filter, 23...AGC control circuit.
Claims (1)
る包路線検波する検波器とを具備してなるＦＭ復調装置
において、前記ＦＭ復調回路の出力信号が供給され、こ
の出力信号を利得制御して前記検波回路に供給する自動
利得制御増幅器と、前記ＦＭ復調回路の出力信号が分岐
して供給されビート信号を取出す高域通過フィルタと、
このフィルタの出力信号に応じて前記自動利得制御増幅
器の利得を制御する制御回路とを具備したことを特徴と
するＦＭ復調装置。In an FM demodulation device comprising an FM demodulation circuit that demodulates a received signal and a detector that performs envelope detection of the demodulated output signal, the output signal of the FM demodulation circuit is supplied, and the output signal is gain controlled. an automatic gain control amplifier that supplies the output signal to the detection circuit; a high-pass filter to which the output signal of the FM demodulation circuit is branched and supplied and extracts the beat signal;
An FM demodulator comprising: a control circuit that controls the gain of the automatic gain control amplifier according to the output signal of the filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12745481U JPS5834447U (en) | 1981-08-28 | 1981-08-28 | FM demodulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12745481U JPS5834447U (en) | 1981-08-28 | 1981-08-28 | FM demodulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5834447U true JPS5834447U (en) | 1983-03-05 |
Family
ID=29921182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12745481U Pending JPS5834447U (en) | 1981-08-28 | 1981-08-28 | FM demodulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5834447U (en) |
-
1981
- 1981-08-28 JP JP12745481U patent/JPS5834447U/en active Pending
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