Patent Number: 6,294,964

Title: High-stability piezoelectric oscillator

Abstract: To obtain means for suppressing a jump phenomenon to a B mode in a Colpitts oscillator using an SC-cut crystal unit. In a Colpitts oscillator including a piezoelectric resonator and an amplifier circuit, a series resonance circuit and a parallel resonance circuit consisting of an inductance and a capacitance are inserted into an oscillation loop, and the frequency of the series resonance circuit is set in the vicinity of the oscillation frequency of the oscillator, and the frequency of the parallel resonance circuit is set in the vicinity of an unwanted oscillation frequency of the oscillator, thereby to suppress the unwanted oscillation.

Inventors: Satoh; Tomio (Kouza-gun, JP)

Assignee: Toyo Communication Equipment Co., Ltd.

International Classification: H03B 5/36 (20060101); H03B 005/32 ()

Expiration Date: 09/25/2018