OSCILLATOR, ELECTRONIC APPARATUS, AND VEHICLE
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United States of America Patent
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Oct 1, 2020
app pub date -
Mar 25, 2020
filing date -
Mar 26, 2019
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Abstract
An oscillator includes a resonator, a temperature control element that controls a temperature of the resonator, a first temperature sensing element that outputs a first temperature detection signal, a second temperature sensing element that is provided at a position farther from the resonator than the first temperature sensing element and outputs a second temperature detection signal, an analog/digital conversion circuit that converts the first temperature detection signal into a first temperature code which is a digital signal, and converts the second temperature detection signal into a second temperature code which is a digital signal, and a digital signal processing circuit that generates a temperature control code for controlling the temperature control element based on the first temperature code and the second temperature code.
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