JPS5939538U - electronically tuned receiver - Google Patents
electronically tuned receiverInfo
- Publication number
- JPS5939538U JPS5939538U JP13497782U JP13497782U JPS5939538U JP S5939538 U JPS5939538 U JP S5939538U JP 13497782 U JP13497782 U JP 13497782U JP 13497782 U JP13497782 U JP 13497782U JP S5939538 U JPS5939538 U JP S5939538U
- Authority
- JP
- Japan
- Prior art keywords
- tuning circuit
- circuit
- local oscillation
- tuning
- voltage
- 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
- 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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来装置の一例の要部の概略構成を示す回路構
成図、第２図は本考案の第１の実施例の要部の概略構成
を示す回路構成図、第３図〜第５図は同実施例の作用を
説明するための図、第６図は本考案の第２の実施例の要
部の概略構成を示す回路構成図である。
１・・・アンテナ、３・・・ＲＦ（ラジオ周波数）増幅
器、５・・・ミキサ、７．２０・・・アンテナ同調回路
、８゜２１・・・ＲＦ同調回路、９・・・局部発振回路
、９ａ・・・ＰＬＬシンセサイザシステム、９ｂ、２２
・・・局部発振同調回路、９Ｃ，２３・・・正帰還増幅
器、１０゜１１、 １８． １９・・・可変抵抗器、１
２．１３・・・分圧抵抗、２４・・・プリスケーラ、２
５・・田−パスフィルタ、２７・・・コード発生器（外
付け）、２８゜２９・・・アッテネータ。FIG. 1 is a circuit configuration diagram showing a schematic configuration of main parts of an example of a conventional device, FIG. 2 is a circuit configuration diagram showing a schematic configuration of main parts of a first embodiment of the present invention, and FIGS. 3 to 5 The figure is a diagram for explaining the operation of the second embodiment, and FIG. 6 is a circuit configuration diagram showing a schematic configuration of the main part of the second embodiment of the present invention. 1... Antenna, 3... RF (radio frequency) amplifier, 5... Mixer, 7.20... Antenna tuning circuit, 8゜21... RF tuning circuit, 9... Local oscillation circuit , 9a... PLL synthesizer system, 9b, 22
...Local oscillation tuning circuit, 9C, 23...Positive feedback amplifier, 10°11, 18. 19...variable resistor, 1
2.13...Voltage dividing resistor, 24...Prescaler, 2
5... field-pass filter, 27... code generator (external), 28° 29... attenuator.
Claims (1)
電圧によ６電圧可変容量ダイオードを用いた同調回路が
制御される局部発振回路を有する・ 電子同調式受信機
において、アンテナ同調回路およびＲＦ同調回路の少な
くとも一方と上記局部発振回路の局部発振同調回路とを
固定インダクタンスと電圧可変容量ダイオードとからな
る同調回路で構成するとともに上記同調制御部の出力制
御電圧を分圧して上記局部発振同調回路の電圧可変容量
ダイオードに与え且つ上記同調制御部の出力制御電圧を
減衰調整手段を介して上記アンテナ同調回路およびＲＦ
同調回路の一方または両方の電圧可変容量ダイオードに
与える構成とし、上記減衰調整手段の調整によってトラ
ッキング調整を行なうことを特徴とする電子同調式受信
機。In an electronically tuned receiver, the antenna tuning circuit and the RF tuning circuit each include a local oscillation circuit that is a superheterodyne system and in which a tuning circuit using a six-voltage variable capacitance diode is controlled by a direct current control voltage of a tuning control section. One side and the local oscillation tuning circuit of the local oscillation circuit are configured with a tuning circuit consisting of a fixed inductance and a voltage variable capacitance diode, and the output control voltage of the tuning control section is divided to divide the voltage variable capacitance of the local oscillation tuning circuit. The antenna tuning circuit and the RF
An electronically tuned receiver characterized in that the voltage is applied to one or both of the voltage variable capacitance diodes of the tuning circuit, and tracking adjustment is performed by adjusting the attenuation adjustment means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13497782U JPS5939538U (en) | 1982-09-06 | 1982-09-06 | electronically tuned receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13497782U JPS5939538U (en) | 1982-09-06 | 1982-09-06 | electronically tuned receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5939538U true JPS5939538U (en) | 1984-03-13 |
Family
ID=30303958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13497782U Pending JPS5939538U (en) | 1982-09-06 | 1982-09-06 | electronically tuned receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5939538U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5871736A (en) * | 1981-10-26 | 1983-04-28 | Matsushita Electric Ind Co Ltd | Receiver |
-
1982
- 1982-09-06 JP JP13497782U patent/JPS5939538U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5871736A (en) * | 1981-10-26 | 1983-04-28 | Matsushita Electric Ind Co Ltd | Receiver |
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