| 摘要 |
A method and system for fast wakeup of a high-Q oscillator ( 300 ) that includes a resonating element ( 304 ), preferably a crystal resonator ( 304 ), and an amplifier ( 310 ). The method comprises connecting the resonating element ( 304 ) to a fast wakeup, low-Q oscillator ( 302 ), inputting a plurality of pulses generated by the low-Q oscillator ( 302 ) into the resonating element ( 304 ), and simultaneously disconnecting the resonating element ( 304 ) from the low-Q oscillator ( 302 ) while connecting the resonating element ( 304 ) to the amplifier ( 310 ), thereby obtaining substantially uniform steady state oscillations in the high-Q oscillator. The system ( 300 ) includes in addition to high-Q and low-Q oscillator elements a mechanism for counting the pulses ( 312 ) and for performing the simultaneous disconnection and connection mentioned above.
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