Temperature-compensated voltage generating circuit, oscillator module, system and method
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United States of America Patent
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Oct 27, 2020
Grant Date -
May 7, 2020
app pub date -
Nov 4, 2019
filing date -
Nov 5, 2018
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Abstract
Provided is a temperature-compensated voltage generating circuit that generates a temperature-compensated voltage which is supplied to an oscillator circuit. The temperature-compensated voltage generating circuit includes a temperature detecting circuit that detects a temperature; a high frequency attenuating part that attenuates at least a part of a frequency component which is higher than a direct-current component of an output of the temperature detecting circuit; an adder that adds the output of the temperature detecting circuit and an output of the high frequency attenuating part; and a compensated voltage generating part that generates the temperature-compensated voltage based on an output of the adder.
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