JPS5593306A - Crystal oscillation circuit - Google Patents
Crystal oscillation circuitInfo
- 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
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
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)
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)
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 |
-
1979
- 1979-01-09 JP JP164479A patent/JPS5593306A/en active Pending
Patent Citations (2)
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)
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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