A frequency generation circuit for use in a wireless communication device comprising: an oscillator comprising an oscillator output, a first control input (CTRL 1), and a second control input (CTRL 2); a detector configured to detect an amplitude of an oscillator output signal; a first feedback path operatively connecting a detector output to the first control input (CTRL 1), the first feedback path configured to control the amplitude of the oscillator output signal by continuously applying a first control signal (S 1), responsive to the detected amplitude, to the first control input, wherein the first feedback path is configured to control the amplitude of the oscillator output signal (S 0), responsive to the detected amplitude, by continuously controlling a gain of the oscillator; and a second feedback path operatively connecting the detector output to the second control input (CTRL 2), the second feedback path configured to control one or more amplitude regulating parameters of the oscillator by applying a second control signal (S 2), responsive to the detected amplitude, to the second control input; wherein the second feedback path comprises a control circuit, wherein the control circuit comprises a first comparison circuit configured to compare the detected amplitude to an upper threshold, and a second comparison circuit configured to compare the detected amplitude to a lower threshold, and wherein the control circuit is configured to control the one or more amplitude regulating parameters by controlling the one or more amplitude regulating parameters when the detected amplitude exceeds the upper threshold or is less than the lower threshold; and wherein the control circuit is configured to prevent changes to the one or more amplitude regulating parameters when the oscillator is being used for wireless communications. an oscillator comprising an oscillator output, a first control input (CTRL 1), and a second control input (CTRL 2); a detector configured to detect an amplitude of an oscillator output signal; a first feedback path operatively connecting a detector output to the first control input (CTRL 1), the first feedback path configured to control the amplitude of the oscillator output signal by continuously applying a first control signal (S 1), responsive to the detected amplitude, to the first control input, wherein the first feedback path is configured to control the amplitude of the oscillator output signal (S 0), responsive to the detected amplitude, by continuously controlling a gain of the oscillator; and a second feedback path operatively connecting the detector output to the second control input (CTRL 2), the second feedback path configured to control one or more amplitude regulating parameters of the oscillator by applying a second control signal (S 2), responsive to the detected amplitude, to the second control input; wherein the second feedback path comprises a control circuit, wherein the control circuit comprises a first comparison circuit configured to compare the detected amplitude to an upper threshold, and a second comparison circuit configured to compare the detected amplitude to a lower threshold, and wherein the control circuit is configured to control the one or more amplitude regulating parameters by controlling the one or more amplitude regulating parameters when the detected amplitude exceeds the upper threshold or is less than the lower threshold; and wherein the control circuit is configured to prevent changes to the one or more amplitude regulating parameters when the oscillator is being used for wireless communications.