US 11,863,123 B2
Circuit device and oscillator
Hideo Haneda, Shiojiri (JP); and Yuichi Toriumi, Minowa (JP)
Assigned to SEIKO EPSON CORPORATION
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Jul. 26, 2022, as Appl. No. 17/873,212.
Claims priority of application No. 2021-122197 (JP), filed on Jul. 27, 2021.
Prior Publication US 2023/0035498 A1, Feb. 2, 2023
Int. Cl. H03B 5/04 (2006.01); H03B 5/32 (2006.01)
CPC H03B 5/04 (2013.01) [H03B 5/32 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A circuit device comprising:
an oscillation circuit configured to generate an oscillation signal using a resonator;
a temperature detection circuit configured to output temperature detection data;
a temperature compensation circuit configured to perform temperature compensation on an oscillation frequency of the oscillation signal based on the temperature detection data; and
a temperature detection rate control circuit configured to control a temperature detection rate at which the temperature detection circuit executes temperature detection, wherein
the temperature detection rate control circuit controls the temperature detection rate based on a variation in the temperature detection data.