JPS55114006A - Synchronous type crystal oscillator - Google Patents

Synchronous type crystal oscillator

Info

Publication number
JPS55114006A
JPS55114006A JP2225179A JP2225179A JPS55114006A JP S55114006 A JPS55114006 A JP S55114006A JP 2225179 A JP2225179 A JP 2225179A JP 2225179 A JP2225179 A JP 2225179A JP S55114006 A JPS55114006 A JP S55114006A
Authority
JP
Japan
Prior art keywords
crystal oscillator
terminal
switch
feedback circuit
type crystal
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
JP2225179A
Other languages
Japanese (ja)
Inventor
Takahiro Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2225179A priority Critical patent/JPS55114006A/en
Publication of JPS55114006A publication Critical patent/JPS55114006A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to set an oscillation voltage freely with stable operation by preventing a difference in potential from appearing across a crystal oscillator.
CONSTITUTION: The feedback circuit is composed of crystal oscillator 21 and adequate passive network 22 and input terminal 24 of amplifier 23 of 180° in phase difference is connected to one terminal 25 of the above- mentioned feedback circuit and grounded through the switching of switch 26. Then, either of output terminal 27 of amplifier 23 and the earth is connected to the other terminal 26 of the feedback circuit through the switching of switch 28. In this constitution, a difference in potential across crystal oscillator 21 is eliminated because while terminal 25 is grounded via switch 26, terminal 26 is also grounded via switch 28, so that the free oscillation of crystal oscillator 21.
COPYRIGHT: (C)1980,JPO&Japio
JP2225179A 1979-02-27 1979-02-27 Synchronous type crystal oscillator Pending JPS55114006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2225179A JPS55114006A (en) 1979-02-27 1979-02-27 Synchronous type crystal oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2225179A JPS55114006A (en) 1979-02-27 1979-02-27 Synchronous type crystal oscillator

Publications (1)

Publication Number Publication Date
JPS55114006A true JPS55114006A (en) 1980-09-03

Family

ID=12077561

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2225179A Pending JPS55114006A (en) 1979-02-27 1979-02-27 Synchronous type crystal oscillator

Country Status (1)

Country Link
JP (1) JPS55114006A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185706A (en) * 1981-05-11 1982-11-16 Ricoh Elemex Corp Oscillation circuit
JPS6295321U (en) * 1985-12-04 1987-06-18
JPH0459611U (en) * 1990-09-28 1992-05-21
JPH07326962A (en) * 1995-05-15 1995-12-12 Seiko Epson Corp Electronic equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185706A (en) * 1981-05-11 1982-11-16 Ricoh Elemex Corp Oscillation circuit
JPS6295321U (en) * 1985-12-04 1987-06-18
JPH0459611U (en) * 1990-09-28 1992-05-21
JPH07326962A (en) * 1995-05-15 1995-12-12 Seiko Epson Corp Electronic equipment

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