OVEN CONTROLLED CRYSTAL OSCILLATOR DEVICE, AND FREQUENCY COMPENSATION METHOD THEREFOR
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United States of America
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Issued Date -
Jan 16, 2020
app pub date -
Feb 24, 2017
filing date -
Feb 24, 2017
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Abstract
Disclosed are an oven controlled crystal oscillator device and a frequency compensation method thereof. The oven controlled crystal oscillator device includes: an oven, a microcontroller, an oven controlled crystal oscillator disposed in the oven, and a current detection circuit. The current detection circuit is coupled to the oven controlled crystal oscillator, and is configured to obtain an operating current value of the oven controlled crystal oscillator and provide the operating current value to the microcontroller. The microcontroller is configured to determine a frequency compensation amount according to the operating current value based on a frequency compensation rule, and output the frequency compensation amount to the oven controlled crystal oscillator to compensate an output frequency.
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