Title: Method of manufacturing crystal oscillator and the crystal oscillator manufactured by the method
Application Number: 200610142085 Application Date: 2006.10.08
Publication Number: 1945965 Publication Date: 2007.04.11
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03B5/30;H03L1/02;G04G3/00;G04G3/04
Applicant(s) Name: Kawasaki Microelectronics Inc. Address:
Inventor(s) Name: Matsuya Yuichi;Ariyoshi Ryuji
Attorney & Agent: wanghai chuan fanwei min
Abstract:
    The method of manufacturing a crystal oscillator that is compensated for temperature with low-cost, and a crystal oscillator that is compensated for temperature by the method is disclosed. A plurality of crystal oscillators are manufactured by preparing a compensation circuit that generates a common compensation voltage in accordance with a predetermined compensation curve expressed by a quintic polynomial of an ambient temperature; and manufacturing each of the plurality of crystal oscillators by integrating the compensation circuit with a voltage controlled oscillation circuit including a crystal resonator, the common compensation voltage generated by the compensation circuit being supplied to the voltage controlled oscillation circuit so that the temperature characteristic of the crystal resonator is compensated.
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