Patent ID: 9312812
Filing Date: 2016-04-12
CPC Classification: H03B,Y10T

Claim Text:
1. An oscillation circuit comprising: a first terminal which is connected to one end of a resonator; a second terminal which is connected to the other end of the resonator; an oscillation unit which is electrically connected to the first terminal and the second terminal; a first switch operable in a normal oscillation mode and an inspection mode, wherein a current applied for exciting the resonator is greater in the inspection mode than in the normal oscillation mode; and a first voltage generation circuit, wherein: the oscillation unit includes at least one first electronic element having one end which is electrically connected to the first terminal or the second terminal, the first switch controls a voltage which is applied to the other end of the first electronic element, in the normal oscillation mode, the first switch electrically couples the other end of the first electronic element and an output terminal of the first voltage generation circuit, and in the inspection mode, the first switch electrically decouples the other end of the first electronic element from the output terminal of the first voltage generation circuit.