JPS57199304A - Quartz oscillating circuit - Google Patents

Quartz oscillating circuit

Info

Publication number
JPS57199304A
JPS57199304A JP8455381A JP8455381A JPS57199304A JP S57199304 A JPS57199304 A JP S57199304A JP 8455381 A JP8455381 A JP 8455381A JP 8455381 A JP8455381 A JP 8455381A JP S57199304 A JPS57199304 A JP S57199304A
Authority
JP
Japan
Prior art keywords
temperature
oscillator
operating
range
coefficient
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
JP8455381A
Other languages
Japanese (ja)
Inventor
Hiroyuki Hirabayashi
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.)
Seikosha KK
Original Assignee
Seikosha KK
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 Seikosha KK filed Critical Seikosha KK
Priority to JP8455381A priority Critical patent/JPS57199304A/en
Publication of JPS57199304A publication Critical patent/JPS57199304A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/028—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only of generators comprising piezoelectric resonators

Landscapes

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

Abstract

PURPOSE:To make temperature compensation for the circuit with a temperature compensating capacitor having the positive or negative temperature characteristics, by setting a top temperature of a quartz oscillator having the secondary temperature coefficient between the vicinity of an operating temperature range and outside of the operating range. CONSTITUTION:A quartz oscillator Q has a secondary temperature coefficient and is cut out so that the frequency is maximum near the upper limit T1 of the operating temperature range T0-T1. Since the oscillator Q has a positive temperature coefficient within the operating temperature range, the temperature compensation like a curve l2 can be made by using a temperature compensating capacitor having a positive temperature coefficient for either one or both of load capacitors C1 and C2. If the top temperature of the oscillator Q is set near the lower limit temperature T0, the temperature characteristics in the operating temperature range of the oscillator Q are negative. Thus, the temperature compensation like a curve l4 can be made by using a temperature compensating capacitor having a negative temperature coefficient.
JP8455381A 1981-06-02 1981-06-02 Quartz oscillating circuit Pending JPS57199304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8455381A JPS57199304A (en) 1981-06-02 1981-06-02 Quartz oscillating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8455381A JPS57199304A (en) 1981-06-02 1981-06-02 Quartz oscillating circuit

Publications (1)

Publication Number Publication Date
JPS57199304A true JPS57199304A (en) 1982-12-07

Family

ID=13833828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8455381A Pending JPS57199304A (en) 1981-06-02 1981-06-02 Quartz oscillating circuit

Country Status (1)

Country Link
JP (1) JPS57199304A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6367836U (en) * 1986-10-17 1988-05-07

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5085368A (en) * 1973-11-28 1975-07-09
JPS51149755A (en) * 1975-06-17 1976-12-22 Citizen Watch Co Ltd Electronic clock
JPS54123861A (en) * 1978-03-17 1979-09-26 Citizen Watch Co Ltd Crystal oscillation circuit for electronic watch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5085368A (en) * 1973-11-28 1975-07-09
JPS51149755A (en) * 1975-06-17 1976-12-22 Citizen Watch Co Ltd Electronic clock
JPS54123861A (en) * 1978-03-17 1979-09-26 Citizen Watch Co Ltd Crystal oscillation circuit for electronic watch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6367836U (en) * 1986-10-17 1988-05-07

Similar Documents

Publication Publication Date Title
JPS5683110A (en) Thickness slip oscillator of litium tantalate
JPS57199304A (en) Quartz oscillating circuit
JPS5634216A (en) Composite oscillation quartz oscillator
JPS55165005A (en) Fm detection circuit
JPS5565188A (en) Electronic watch
JPS5398765A (en) Oscillator
JPS57199310A (en) Coupling tuning fork type quartz oscillator
JPS57203313A (en) Tuning fork type quartz oscillator
JPS5698908A (en) Oscillation circuit using piezoelectric oscillator
JPS5768924A (en) Coupling turning fork quartz oscillator
JPS5360541A (en) Dielectric resonator
JPS54123861A (en) Crystal oscillation circuit for electronic watch
JPS5628504A (en) Temperature compensation type piezo-oscillator
JPS5456754A (en) Crystal oscillator circuit
JPS55110416A (en) Piezoelectric oscillator
JPS5557183A (en) Electronic watch
JPS5352463A (en) Electronic watch
JPS54132152A (en) Rectangular at crystal oscillator
JPS5673906A (en) Microwave oscillator
JPS55133108A (en) Crystal oscillation circuit
JPS5555604A (en) Piezoelectric oscillator of temperature compensation type
JPS57188126A (en) Composite quartz oscillator
JPS51139750A (en) Temperature-compensated crystal oscillator
JPS5567690A (en) Electronic watch
JPS56123120A (en) Coupled tuning fork type quartz oscillator