Integrated circuit device, electronic equipment and control method
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United States of America Patent
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Nov 27, 2012
Grant Date -
Jun 9, 2011
app pub date -
Nov 5, 2010
filing date -
Dec 8, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
An integrated circuit device includes a first rectangular wave signal generation section that outputs a first rectangular wave signal when an amplitude of an oscillation signal inputted is greater than a first amplitude, and a second rectangular wave signal generation section that outputs a second rectangular wave signal when the amplitude of the oscillation signal is greater than a second amplitude that is greater than the first amplitude, and that controls the power supply voltage of an oscillation circuit by the first and second rectangular wave signals so as to maintain an appropriate potential difference with respect to a stop voltage against changes in the oscillation stop voltage associated with changes in a temperature condition.
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