Patent ID: 8692626
Filing Date: 2014-04-08
Classification: H03L

Abstract:
1. An oscillation device, compensating a setting signal for setting an output frequency based on a detection result of an ambient temperature, the oscillation device comprising: a first quartz-crystal oscillator, structured by providing first electrodes on a quartz-crystal piece; a second quartz-crystal oscillator, structured by providing second electrodes on a quartz-crystal piece; a first oscillation circuit and a second oscillation circuit, connected to the first quartz-crystal oscillator and the second quartz-crystal oscillator respectively; a frequency difference detecting unit, when an oscillation frequency of the first oscillation circuit is set to f a compensation value obtaining unit, obtaining a frequency compensation value of f the compensation value obtaining unit is structured to include a function for calculating the frequency compensation value of f the divide coefficient k is a value previously set according to a maximum value of the difference corresponding value x previously detected in a measurement temperature range; an output of the oscillation device is structured to be generated by utilizing an output of the first oscillation circuit; and the setting signal is structured to be compensated based on the frequency compensation value determined by the compensation value obtaining unit.