JPS5914419U - Tuning circuit - Google Patents

Tuning circuit

Info

Publication number
JPS5914419U
JPS5914419U JP10955282U JP10955282U JPS5914419U JP S5914419 U JPS5914419 U JP S5914419U JP 10955282 U JP10955282 U JP 10955282U JP 10955282 U JP10955282 U JP 10955282U JP S5914419 U JPS5914419 U JP S5914419U
Authority
JP
Japan
Prior art keywords
terminal group
electrodes
switching transistor
output terminals
output
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
Application number
JP10955282U
Other languages
Japanese (ja)
Inventor
寺沢　健治
Original Assignee
三洋電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三洋電機株式会社 filed Critical 三洋電機株式会社
Priority to JP10955282U priority Critical patent/JPS5914419U/en
Publication of JPS5914419U publication Critical patent/JPS5914419U/en
Pending legal-status Critical Current

Links

Landscapes

  • Electronic Switches (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Selective Calling Equipment (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

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案を実施した選局回路を示す回路図である。 マイコン、２・・・チューニング電圧供給回路、Ｏ□〜
０７・・・出力端子、ＴＲ１〜ＴＲ１゜・・・スイッチ
ングトランジスタ。The drawing is a circuit diagram showing a channel selection circuit implementing the present invention. Microcomputer, 2...Tuning voltage supply circuit, O□~
07...Output terminal, TR1~TR1゜...Switching transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ｍ個の出力端子を含む第１端子群並びにｎ個の出力端子
を含む第２端子群を有するマイコンと、前記第１端子群
の出力端子に第１電極がｎ個ずつ共通に接続されたｍｘ
ｎ個のスイッチングトランジスタと、前記スイッチング
トランジスタの第３電極に接続され該スイッチングトラ
ンジスタが導−通したときチューニング電圧を出力する
ように作動するチューニング電圧供給回路とを有し、前
記スイッチングトランジスタの第２電極は前記第２端子
群のｎ個の出力端子にｍ個ずつ共通に接続されていて、
前記第１、第２電極間に前記マイコンから順バイアスが
与えられたスイッチングトランジスタのみが導通するよ
うにしたことを特徴とする選局回路。a microcomputer having a first terminal group including m output terminals and a second terminal group including n output terminals, and an mx in which n first electrodes are commonly connected to each output terminal of the first terminal group.
n switching transistors; and a tuning voltage supply circuit connected to a third electrode of the switching transistor and operating to output a tuning voltage when the switching transistor is conductive; m electrodes are commonly connected to each of the n output terminals of the second terminal group,
A channel selection circuit characterized in that only a switching transistor to which a forward bias is applied between the first and second electrodes from the microcomputer is made conductive.
JP10955282U 1982-07-19 1982-07-19 Tuning circuit Pending JPS5914419U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10955282U JPS5914419U (en) 1982-07-19 1982-07-19 Tuning circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10955282U JPS5914419U (en) 1982-07-19 1982-07-19 Tuning circuit

Publications (1)

Publication Number Publication Date
JPS5914419U true JPS5914419U (en) 1984-01-28

Family

ID=30255146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10955282U Pending JPS5914419U (en) 1982-07-19 1982-07-19 Tuning circuit

Country Status (1)

Country Link
JP (1) JPS5914419U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0426916U (en) * 1990-06-29 1992-03-03

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5512493U (en) * 1978-07-12 1980-01-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5512493U (en) * 1978-07-12 1980-01-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0426916U (en) * 1990-06-29 1992-03-03

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