| 摘要 |
PROBLEM TO BE SOLVED: To provide a clock generation device, an electronic apparatus, a mobile body and a clock generation method that generate a clock signal with relatively high frequency stability while reducing wasteful power consumption.SOLUTION: A clock generation device 1 measures a frequency ratio of a clock signal CK1 (32.768 kHz+α) to a reference frequency value with reference to a clock signal CK3 (25 MHz), masks some clocks of the clock signal CK1 on the basis of a measurement result of the frequency ratio to generate a clock signal CK2, and updates a compensation value of a frequency-temperature characteristic of the clock signal CK3 when a difference between the measurement result of the frequency ratio and an average of N measurement results of the frequency ratio (N is a natural number) is greater than a reference value R1. |
