JPS6326124U - - Google Patents
Info
- Publication number
- JPS6326124U JPS6326124U JP11781786U JP11781786U JPS6326124U JP S6326124 U JPS6326124 U JP S6326124U JP 11781786 U JP11781786 U JP 11781786U JP 11781786 U JP11781786 U JP 11781786U JP S6326124 U JPS6326124 U JP S6326124U
- Authority
- JP
- Japan
- Prior art keywords
- tuning
- circuit
- stage
- tuning circuit
- bands
- 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
- 230000003321 amplification Effects 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Noise Elimination (AREA)
Description
第１図は本考案の一実施例の同調回路が適用さ
れる多バンドチユーナの回路ブロツク図、第２図
は本考案の一実施例になる同調回路を含む第１図
の具体的回路図、第３図は従来例の多バンドチユ
ーナの回路ブロツク図、第４図は第３図の具体的
回路図を夫々示す。
１…ＵＨＦ入力端子、２…ＶＨＦ入力端子、３
１…入力フイルタ、２４…ＶＨＦ帯入力複同調回
路、２５…ＵＨＦ帯入力複同調回路、１９…ＲＦ
増巾回路、２６…ＶＨＦ帯段間単同調回路、２７
…ＵＨＦ帯段間単同調回路、Ｃ４〜Ｃ６…可変容
量素子。
FIG. 1 is a circuit block diagram of a multi-band tuner to which a tuning circuit according to an embodiment of the present invention is applied, and FIG. 2 is a specific circuit diagram of FIG. 1 including a tuning circuit according to an embodiment of the present invention. 3 is a circuit block diagram of a conventional multi-band tuner, and FIG. 4 is a specific circuit diagram of FIG. 3. 1...UHF input terminal, 2...VHF input terminal, 3
1...Input filter, 24...VHF band input double tuning circuit, 25...UHF band input double tuning circuit, 19...RF
Amplifying circuit, 26...VHF band interstage single tuning circuit, 27
...UHF interband single tuning circuit, C4 to C6 ...variable capacitance element.
Claims (1)
ナの同調回路において、該第１及び第２の帯域を
選択同調する入力同調段を複同調段で、該複同調
回路の出力信号を高周波増巾回路で増巾し、該増
巾回路の出力信号が供給させれる段間同調段を単
同調回路で夫々構成した事を特徴とする多バンド
チユーナの同調回路。 In a tuning circuit of a multi-band tuner that receives first and second bands, the input tuning stage for selectively tuning the first and second bands is a double tuning stage, and the output signal of the double tuning circuit is sent to a high frequency amplification circuit. 1. A tuning circuit for a multi-band tuner, characterized in that each interstage tuning stage to which the output signal of the amplification circuit is amplified by a single tuning circuit is constructed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11781786U JPS6326124U (en) | 1986-07-31 | 1986-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11781786U JPS6326124U (en) | 1986-07-31 | 1986-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6326124U true JPS6326124U (en) | 1988-02-20 |
Family
ID=31003688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11781786U Pending JPS6326124U (en) | 1986-07-31 | 1986-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6326124U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01167725U (en) * | 1988-05-16 | 1989-11-27 | ||
| JPH0258415A (en) * | 1988-06-28 | 1990-02-27 | Telefunken Electronic Gmbh | Television tuner with band-pass filter circuit |
-
1986
- 1986-07-31 JP JP11781786U patent/JPS6326124U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01167725U (en) * | 1988-05-16 | 1989-11-27 | ||
| JPH0258415A (en) * | 1988-06-28 | 1990-02-27 | Telefunken Electronic Gmbh | Television tuner with band-pass filter circuit |
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