JPH0228130U - - Google Patents
Info
- Publication number
- JPH0228130U JPH0228130U JP10771788U JP10771788U JPH0228130U JP H0228130 U JPH0228130 U JP H0228130U JP 10771788 U JP10771788 U JP 10771788U JP 10771788 U JP10771788 U JP 10771788U JP H0228130 U JPH0228130 U JP H0228130U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- tuning
- terminal
- deriving
- transistor
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Description
第１図はこの考案の一実施例を示す回路構成図
、第２図は第１図の要部のタイミングチヤート、
第３図および第４図はそれぞれ従来の回路構成図
である。
Fig. 1 is a circuit configuration diagram showing an embodiment of this invention, Fig. 2 is a timing chart of the main parts of Fig. 1,
FIG. 3 and FIG. 4 are respectively conventional circuit configuration diagrams.
Claims (1)
チユーニング信号を導出する第２の端子と、選局
から受信状態となつたときに前記第１および第２
の端子に所定期間だけオンする第１のトランジス
タと、この第１のトランジスタのオン期間だけオ
ンし、入力したＩＦ信号を増幅したのち、オート
チユーニング回路の選局をストツプするＩＦカウ
ンター回路に供給する第２のトランジスタとから
なるオートチユーニング回路。 a first terminal for deriving a muting signal;
a second terminal for deriving a tuning signal; and a second terminal for deriving a tuning signal;
A first transistor that is turned on for a predetermined period of time is connected to a terminal of the IF signal, and after the first transistor is turned on for a predetermined period of time and amplifies the input IF signal, it is supplied to the IF counter circuit that stops the tuning of the auto-tuning circuit. an auto-tuning circuit consisting of a second transistor;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10771788U JPH0228130U (en) | 1988-08-16 | 1988-08-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10771788U JPH0228130U (en) | 1988-08-16 | 1988-08-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0228130U true JPH0228130U (en) | 1990-02-23 |
Family
ID=31342381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10771788U Pending JPH0228130U (en) | 1988-08-16 | 1988-08-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0228130U (en) |
-
1988
- 1988-08-16 JP JP10771788U patent/JPH0228130U/ja active Pending