JPS5593306A - Crystal oscillation circuit - Google Patents

Crystal oscillation circuit

Info

Publication number
JPS5593306A
JPS5593306A JP164479A JP164479A JPS5593306A JP S5593306 A JPS5593306 A JP S5593306A JP 164479 A JP164479 A JP 164479A JP 164479 A JP164479 A JP 164479A JP S5593306 A JPS5593306 A JP S5593306A
Authority
JP
Japan
Prior art keywords
signal
circuit
gates
line
temperature compensation
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
JP164479A
Other languages
Japanese (ja)
Inventor
Hiroo Fujita
Yasushi Nomura
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP164479A priority Critical patent/JPS5593306A/en
Publication of JPS5593306A publication Critical patent/JPS5593306A/en
Pending legal-status Critical Current

Links

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

PURPOSE: To enable temperature compensation with a simple member, without using temperature compensation capacitor.
CONSTITUTION: The signal from the watch circuit 50 outputs intermittent signal ϕ1 to the AND gate 83 via the differentiation circuit. The switch 91 of the temperature sensor circuit 90 is operated with ϕ1, and the voltage VM varied with the temperature is outputted on the line 94 while ϕ1 in H level. In the intermittent control circuit 80, the signal ϕ2 is outputted to the line 88 and the signal ϕ3 to the line 95, and the signals control the AND gates 103, 104, 105, 106 of the control circuit 100. The thresholds VTH1, VTH2 of the inverters 101 and 102 are set to different value. Further, the flip flop's 109, 110 are operated with the output of the AND gates 103∼106 to drive the AND gates 113, 114, 115 and to control the temperature compensation signal forming circuit 30.
COPYRIGHT: (C)1980,JPO&Japio
JP164479A 1979-01-09 1979-01-09 Crystal oscillation circuit Pending JPS5593306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP164479A JPS5593306A (en) 1979-01-09 1979-01-09 Crystal oscillation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP164479A JPS5593306A (en) 1979-01-09 1979-01-09 Crystal oscillation circuit

Publications (1)

Publication Number Publication Date
JPS5593306A true JPS5593306A (en) 1980-07-15

Family

ID=11507221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP164479A Pending JPS5593306A (en) 1979-01-09 1979-01-09 Crystal oscillation circuit

Country Status (1)

Country Link
JP (1) JPS5593306A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4464061A (en) * 1979-12-20 1984-08-07 Ricoh Watch Co., Ltd. Linearizer circuit and an electronic watch incorporating same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5181543A (en) * 1975-01-14 1976-07-16 Suwa Seikosha Kk SHUHASUJIDOONDOHOSHOSOCHI
JPS5275162A (en) * 1975-12-18 1977-06-23 Seiko Epson Corp Quartz crystal oscillator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5181543A (en) * 1975-01-14 1976-07-16 Suwa Seikosha Kk SHUHASUJIDOONDOHOSHOSOCHI
JPS5275162A (en) * 1975-12-18 1977-06-23 Seiko Epson Corp Quartz crystal oscillator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4464061A (en) * 1979-12-20 1984-08-07 Ricoh Watch Co., Ltd. Linearizer circuit and an electronic watch incorporating same

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