Dynamic gearshift during oscillator build-up based on duty cycle
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United States of America Patent
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Jun 7, 2016
Grant Date -
Mar 10, 2016
app pub date -
Sep 10, 2014
filing date -
Sep 10, 2014
priority date (Note) -
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Abstract
A dynamic gearshifting system includes a monitoring device configured to monitor a duty cycle of a clock output signal of a crystal oscillator circuit during oscillation buildup upon power-up of the crystal oscillator circuit. The dynamic gearshifting system also includes a detecting device configured to detect whether the duty cycle of the clock output signal of the crystal oscillator circuit meets a duty cycle threshold value. The dynamic gearshifting system may further include an assertion device configured to assert a control signal based on detecting the duty cycle meets the duty cycle threshold value. The asserted control signal configured to dynamically adjust a transconductance of the crystal oscillator circuit.
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