Patent ID: 11863144
Assignee: QUALCOMM INCORPORATED
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An oscillation circuit comprising:
an oscillator configured to generate an oscillation signal, the oscillator comprising:
an oscillator core circuit for coupling to a resonator and configured to generate the oscillation signal to enable the resonator to resonate; and
an adjustable current source coupled to the oscillator core circuit and configured to control an amplitude of the oscillation signal;

a first automatic gain control (AGC) circuit having an input coupled to an output of the oscillator and having an output coupled to a control input of the adjustable current source;
a second AGC circuit configured to replicate the first AGC circuit such that the first AGC circuit is configured to generate a first reference signal and the second AGC circuit is configured to generate a second reference signal that replicates the first reference signal; and
logic having a first input coupled to the output of the first AGC circuit and having a second input coupled to an output of the second AGC circuit.