| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric oscillator with a simple structure that can be compatible with miniaturization, and also, can suppress effects due to an output load without requiring a buffer circuit in the post-stage of an oscillation circuit. SOLUTION: The piezoelectric oscillator is composed as follows. A connection circuit between an inverter amplifier, which is composed by a CMOS structure formed by a serial connection between a P-channel type MOS-FET and an N-channel type MOS-FET, and a first load impedance are inserted between a power supply and grounding. A series circuit between a piezoelectric vibrator and a frequency regulating circuit is inserted between the input of the inverter amplifier and the grounding. A second load impedance is serially inserted and connected to the input of the inverter amplifier and a connection point between the inverter amplifier and the first load impedance. A resistor is connected between the input and the output of the inverter amplifier. COPYRIGHT: (C)2006,JPO&NCIPI
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