Tuning of mems oscillator
AssigneeAvago Technologies Wireless IP (Singapore) Pte. Ltd.
InventorMichael FRANK
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Abstract
A method is provided for tuning a microelectromechanical systems (MEMS) oscillator comprising an acoustic resonator and a tuning and amplification circuit arranged in a loop. The method comprises determining an initial oscillation frequency of the oscillator, modifying a capacitance of the tuning and amplification circuit according to the initial oscillation frequency, and adjusting a power level of the oscillator according to the modified capacitance.
Claims20
A method of tuning a microelectromechanical systems (MEMS) oscillator comprising an acoustic resonator and a tuning and amplification circuit arranged in a loop, the method comprising:
- determining an oscillation frequency of the oscillator;
- modifying a capacitance of the tuning and amplification circuit according to the oscillation frequency;
- and
- adjusting a power level of the oscillator according to the modified capacitance.
A microelectromechanical systems (MEMS) oscillator, comprising;
- an acoustic resonator;
- a tuning and amplification circuit connected with the resonator in a loop and having an adjustable gain and capacitance, wherein the tuning and amplification circuit is configured to tune the oscillator to a target frequency by modifying the adjustable gain and capacitance;
- and
- an adjustable power source connected to the loop and configured to adjust an amount of power supplied to the loop according to the capacitance of the tuning and amplification circuit.
A method of tuning an oscillator comprising an acoustic resonator and a tuning and amplification circuit connected in a loop, wherein the tuning and amplification circuit comprises a transistor and a plurality of tuning capacitors, the method comprising:
- increasing a capacitance of the tuning capacitors in combination with a gate to source voltage of the transistor.
Dependencies are inferred from the claim text.