JPS5946056U - MIX stage IF filter for FSK receiver - Google Patents
MIX stage IF filter for FSK receiverInfo
- Publication number
- JPS5946056U JPS5946056U JP14010682U JP14010682U JPS5946056U JP S5946056 U JPS5946056 U JP S5946056U JP 14010682 U JP14010682 U JP 14010682U JP 14010682 U JP14010682 U JP 14010682U JP S5946056 U JPS5946056 U JP S5946056U
- Authority
- JP
- Japan
- Prior art keywords
- filter
- receiver
- mix stage
- signal
- fsk
- 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
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Superheterodyne Receivers (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図は本考案の一実施例のＦＳＫ信号受信機のブロッ
クダイアグラム、第２図は従来のＩＰフィルタの特性線
図、第３図は本考案適用のＩＦフ、イルタの特性線図で
ある。
１・・・・・・ＡＮＴ、２・・・・・・ＨＰＦ、３・・
・・・・入力同調回路、４・・・・・・ＲＦ増幅器、５
・・・・・・段間同調回路、６・・・・・・混合回路、
７・・・・・・局発回路、８・・・・・・ｉＦフィルタ
、９・・・・・・ｉＦ増幅器、１０・・・・・・検波器
、１１・・・・・・ＡＦ増幅器、１２・・・・・・比較
器、１３・・・・・・波形整形器、１４・・・・・・出
力端子、１５・・・・・・周波数偏移幅、１６・・・・
・・隣接チャンネル抑圧比。Fig. 1 is a block diagram of an FSK signal receiver according to an embodiment of the present invention, Fig. 2 is a characteristic diagram of a conventional IP filter, and Fig. 3 is a characteristic diagram of an IF filter and filter to which the present invention is applied. . 1...ANT, 2...HPF, 3...
...Input tuning circuit, 4...RF amplifier, 5
・・・・・・Interstage tuning circuit, 6・・・・・・Mixing circuit,
7... Local oscillator circuit, 8... iF filter, 9... iF amplifier, 10... detector, 11... AF amplifier , 12... Comparator, 13... Waveform shaper, 14... Output terminal, 15... Frequency deviation width, 16...
...Adjacent channel suppression ratio.
Claims (1)
するジングルスーパ方式受信機において、該受信機のＭ
ＩＸ段出力のＩＦフィルタが、ＩＦ変換されたＦＳＫ信
号の２値偏移周波数のみに共振点を有し、２値信号のみ
を通過帯域としたフィルタ構成をもちいたことを特徴と
するＦＳＫ受信機用ＭＩＸ段ＩＦフィルタ。In a jingle super receiver that receives a binary FSK signal with a signal frequency of 1QMHz or higher, the receiver's M
An FSK receiver characterized in that the IF filter of the IX stage output has a resonance point only at the binary shift frequency of the IF-converted FSK signal, and has a filter configuration in which only the binary signal is the passband. MIX stage IF filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14010682U JPS5946056U (en) | 1982-09-17 | 1982-09-17 | MIX stage IF filter for FSK receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14010682U JPS5946056U (en) | 1982-09-17 | 1982-09-17 | MIX stage IF filter for FSK receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5946056U true JPS5946056U (en) | 1984-03-27 |
Family
ID=30313814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14010682U Pending JPS5946056U (en) | 1982-09-17 | 1982-09-17 | MIX stage IF filter for FSK receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5946056U (en) |
-
1982
- 1982-09-17 JP JP14010682U patent/JPS5946056U/en active Pending
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