Title:
水晶発振器
Document Type and Number:
Japanese Patent JP4499457
Kind Code:
B2
Abstract:
A quartz crystal oscillator in which phase noise is reduced includes: a resonance circuit having a quartz crystal unit and a split capacitor connected to the crystal unit; a transistor for oscillation having its base connected to the node of the crystal unit and the split capacitor; an output line for connecting the mutual node of the split capacitor to the emitter of the transistor; a quartz crystal resonator that is inserted in the output line; and a temperature compensation mechanism for compensating the frequency-temperature characteristics of both the crystal unit and the crystal resonator.
Inventors:
Atsuhiro Ishikawa
Hero Hashimoto
Hero Hashimoto
Application Number:
JP2004089809A
Publication Date:
July 07, 2010
Filing Date:
March 25, 2004
Export Citation:
Assignee:
Nippon Denpa Industry Co., Ltd.
International Classes:
H03B5/32; H03B5/36; H03L1/02
Domestic Patent References:
| JP3268726B2 | ||||
| JP5251932A | ||||
| JP2002319821A |