| 摘要 |
PROBLEM TO BE SOLVED: To provide an oscillation device which is formed in a small area and reduces phase noise. SOLUTION: In the feedback type oscillation device which obtains a desired frequency by feeding back a signal output from an amplifier through a resonator, the resonator includes a crystal vibrator which determines a rough resonance frequency, an inductor for frequency rough adjustment which adjusts frequencies in units of hundreds of hertz based on the rough resonance frequency determined by the crystal oscillator, and an inductor for frequency fine adjustment which adjusts frequencies of tens to several hertz that the inductor for frequency rough adjustment cannot adjust. COPYRIGHT: (C)2009,JPO&INPIT
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