Title:
【発明の名称】水晶発振器の周波数温度補償回路
Document Type and Number:
Japanese Patent JPH0718897
Kind Code:
B2
Abstract:
A temperature-compensated oscillator circuit includes an oscillation element (17) and a floating gate MOS variable capacitor (14) having a three-terminal structure comprising an injection terminal (TI), a capacitance terminal (TC) and a ground terminal (TG). The resistance ratio of a resistor network (21,22,23) and a fixed resistor (24) determines a DC bias voltage which is applied between the capacitance terminal (TC) and the ground terminal (TG) of the variable capacitor to effect temperature compensation.
Inventors:
Ochiai Osamu
Fujio Tamura
Fujio Tamura
Application Number:
JP12389686A
Publication Date:
March 06, 1995
Filing Date:
May 28, 1986
Export Citation:
Assignee:
Seiko-Electronic Components Co., Ltd.
International Classes:
H03B5/32; H03L1/02; G01R19/32; (IPC1-7): G01R19/32; H03B5/32
Domestic Patent References:
| JP5555604A | ||||
| JP6024704A | ||||
| JP5719693A | ||||
| JP60108017U | ||||
| JP4434091B1 |
Attorney, Agent or Firm:
Keinosuke Hayashi
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