CPC H03K 5/00006 (2013.01) [H03K 21/02 (2013.01); H03L 1/02 (2013.01); H03L 7/083 (2013.01); H03K 2005/00286 (2013.01)] | 20 Claims |
1. A correction circuit, comprising:
frequency division circuitry that is configured to receive a reference signal;
drive circuitry that is configured to receive and condition the reference signal from the frequency division circuitry;
a first resonator that is configured to receive the reference signal from the drive circuitry;
sense circuitry that is configured to receive the reference signal from the first resonator;
phase detector circuitry that is configured to generate at least one output signal based on receipt of a plurality of input signals from the drive circuitry and the sense circuitry; and
a proportional integral derivative controller that is configured to generate a temperature correction signal to correct frequency error in an oscillator based on receipt of the at least one output signal from the phase detector circuitry.
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