Oscillation circuit, electronic apparatus, and moving object
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United States of America Patent
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Nov 13, 2018
Grant Date -
Mar 2, 2017
app pub date -
Aug 24, 2016
filing date -
Aug 28, 2015
priority date (Note) -
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Abstract
An oscillation circuit includes an oscillating circuit adapted to oscillate a resonator element having a frequency-temperature characteristic, and a frequency adjustment circuit having a capacitance circuit connected to the oscillating circuit and adapted to adjust an oscillation frequency of the oscillating circuit, and a logic circuit, to which a signal having been output from the oscillating circuit is input, and which adjusts a frequency of the signal, and the frequency adjustment circuit compensates the frequency-temperature characteristic using at least the capacitance circuit in a predetermined temperature range, and compensates the frequency-temperature characteristic using the logic circuit alone outside the predetermined temperature range.
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