JPS61206332U - - Google Patents
Info
- Publication number
- JPS61206332U JPS61206332U JP1932186U JP1932186U JPS61206332U JP S61206332 U JPS61206332 U JP S61206332U JP 1932186 U JP1932186 U JP 1932186U JP 1932186 U JP1932186 U JP 1932186U JP S61206332 U JPS61206332 U JP S61206332U
- Authority
- JP
- Japan
- Prior art keywords
- frequency filter
- output
- signal
- filter
- frequency
- 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.)
- Granted
Links
Landscapes
- Noise Elimination (AREA)
Description
第１図は従来のＦＭ受信機のブロツク図、第２
図は従来のＦＭ受信機の検波特性を説明するため
のＳ字特性曲線図、第３図は本考案の一実施例を
示すＦＭ受信機のブロツク図、第４図はその要部
結線図、第５図は本考案のＦＭ受信機の他の実施
例を示す要部結線図である。
７…振幅制限増幅器、８…クワツドレチユア検
波器、９…帯域フイルタ、１０…共振回路のため
のコイル、１１…共振回路のためのコンデンサ、
１９…セラミツク共振子。
Figure 1 is a block diagram of a conventional FM receiver, Figure 2 is a block diagram of a conventional FM receiver.
The figure is an S-shaped characteristic curve diagram for explaining the detection characteristics of a conventional FM receiver, FIG. 3 is a block diagram of an FM receiver showing an embodiment of the present invention, and FIG. 4 is a wiring diagram of its main parts. FIG. 5 is a main part wiring diagram showing another embodiment of the FM receiver of the present invention. 7... Amplitude limiting amplifier, 8... Quadruple wave detector, 9... Bandpass filter, 10... Coil for resonant circuit, 11... Capacitor for resonant circuit,
19... Ceramic resonator.
Claims (1)
換する周波数変換器と、変換した中間周波信号を
ろ波する第１の周波数ろ波器と、同周波数ろ波器
の出力を増幅する増幅器と、同増幅器の出力をろ
波する第２の周波数ろ波器と、同周波数ろ波器を
通過した信号の振幅を一定値に制限する振幅制限
器と、同振幅制限器の出力をＦＭ検波するクワツ
ドレチユア検波器とを具備するとともに、前記振
幅制限器が、差動増幅器の直結従続接続体として
構成され、さらに、最終段に位置する差動増幅器
の差動出力端子に帯域フイルターが接続されてい
ることを特徴とするＦＭ受信機。 A frequency converter that converts a signal received from an antenna into an intermediate frequency signal, a first frequency filter that filters the converted intermediate frequency signal, an amplifier that amplifies the output of the same frequency filter, and the same frequency filter. a second frequency filter that filters the output of the frequency filter, an amplitude limiter that limits the amplitude of the signal that has passed through the frequency filter to a constant value, and a quadretature detector that performs FM detection of the output of the amplitude limiter. and that the amplitude limiter is configured as a directly connected cascade of a differential amplifier, and further that a bandpass filter is connected to a differential output terminal of the differential amplifier located at the final stage. Features FM receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1932186U JPS6214764Y2 (en) | 1986-02-13 | 1986-02-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1932186U JPS6214764Y2 (en) | 1986-02-13 | 1986-02-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61206332U true JPS61206332U (en) | 1986-12-26 |
| JPS6214764Y2 JPS6214764Y2 (en) | 1987-04-15 |
Family
ID=30508790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1932186U Expired JPS6214764Y2 (en) | 1986-02-13 | 1986-02-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6214764Y2 (en) |
-
1986
- 1986-02-13 JP JP1932186U patent/JPS6214764Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6214764Y2 (en) | 1987-04-15 |