JPS55114006A - Synchronous type crystal oscillator - Google Patents
Synchronous type crystal oscillatorInfo
- 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
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
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)
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 |
-
1979
- 1979-02-27 JP JP2225179A patent/JPS55114006A/en active Pending
Cited By (4)
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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