| 摘要 |
PROBLEM TO BE SOLVED: To obtain a SAW device, a temperature characteristic adjustment method for an oscillator circuit, and an oscillator in which a temperature characteristic of the oscillator circuit can be more flattened within a use temperature range by using characteristics in a temperature zone lower than a point of inflection of a vibrator having tertiary function temperature characteristics. SOLUTION: The SAW device that has the tertiary function temperature characteristics and a point of inflection of the tertiary function temperature characteristics out of an ordinary use temperature range, a temperature characteristic adjustment method for the oscillator circuit with the SAW device integrated therein, and the oscillator are disclosed. A maximal or minimal temperature located within the ordinary temperature range is regarded as an apparent top temperature of secondary function temperature characteristics, the temperature characteristics are turned around the point of inflection that is located out of the ordinary temperature range, by adjusting a primary coefficient, so that the top temperature can be adjusted to an optimal value within the ordinary temperature range. COPYRIGHT: (C)2005,JPO&NCIPI
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