JPS557000A - Crystal oscillation circuit device - Google Patents

Crystal oscillation circuit device

Info

Publication number
JPS557000A
JPS557000A JP8547879A JP8547879A JPS557000A JP S557000 A JPS557000 A JP S557000A JP 8547879 A JP8547879 A JP 8547879A JP 8547879 A JP8547879 A JP 8547879A JP S557000 A JPS557000 A JP S557000A
Authority
JP
Japan
Prior art keywords
circuit
voltage
oscillation
oscillation circuit
switch
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.)
Granted
Application number
JP8547879A
Other languages
Japanese (ja)
Other versions
JPS6028161B2 (en
Inventor
Eiichi Iwanami
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP54085478A priority Critical patent/JPS6028161B2/en
Publication of JPS557000A publication Critical patent/JPS557000A/en
Publication of JPS6028161B2 publication Critical patent/JPS6028161B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device

Landscapes

  • Electric Clocks (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

PURPOSE:To obtain a crystal oscillation circuit device in which the power voltage is applied directly to the oscillation circuit part at the rise period of oscillation and then the oscillation circuit voltage is controlled to the level lower than the power voltage via the oscillation circuit voltage control circuit when the oscillation output becomes higher than a prescribed level. CONSTITUTION:Output A of oscillation circuit part 41 is transmitted to level shift circuit 43 through analog switch 42. Circuit 43 lowers down the DC level of the input signal in accordance with the input threshold voltage of next-step FF circuit 44. When the peak value of signal C exceeds the threshold voltage of circuit 44, circuit 44 is inverted. And this output turns off switch 42 and power switch circuit 46, and the voltage of part 41 is controlled by voltage control circuit 45. After this, circuit 43 and 44 never consume the power since switch 42 is turned off.
JP54085478A 1979-07-05 1979-07-05 crystal oscillation circuit device Expired JPS6028161B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54085478A JPS6028161B2 (en) 1979-07-05 1979-07-05 crystal oscillation circuit device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54085478A JPS6028161B2 (en) 1979-07-05 1979-07-05 crystal oscillation circuit device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP9226675A Division JPS5216151A (en) 1975-07-29 1975-07-29 Crystal oscillator circuit device

Publications (2)

Publication Number Publication Date
JPS557000A true JPS557000A (en) 1980-01-18
JPS6028161B2 JPS6028161B2 (en) 1985-07-03

Family

ID=13860007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54085478A Expired JPS6028161B2 (en) 1979-07-05 1979-07-05 crystal oscillation circuit device

Country Status (1)

Country Link
JP (1) JPS6028161B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04325425A (en) * 1991-04-25 1992-11-13 Tetronics Res & Dev Co Ltd Manufacturing of quartz glass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04325425A (en) * 1991-04-25 1992-11-13 Tetronics Res & Dev Co Ltd Manufacturing of quartz glass
JP2538150B2 (en) * 1991-04-25 1996-09-25 テトロニクス、リサーチ アンド デベロプメント カンパニー リミテッド Quartz glass manufacturing method and manufacturing apparatus thereof

Also Published As

Publication number Publication date
JPS6028161B2 (en) 1985-07-03

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