Patent ID: 7859355

Claim:
A system, comprising: an oscillator; a peak detector coupled to determine a peak voltage value from the oscillator; a controller coupled to the peak detector for comparing the peak voltage value against a predetermined voltage value; a varactor coupled to the oscillator, wherein the controller is configured to change a bias signal applied to a bias node of the varactor to regulate a capacitance applied to the oscillator when the peak detector indicates that the peak voltage value is dissimilar in absolute magnitude than the predetermined voltage value, and wherein the controller is further configured to regulate the capacitance across a range of load capacitances using the bias signal; a second controller coupled to the peak detector for comparing the peak voltage value against a second predetermined voltage value, and to change a second bias signal if the peak voltage is dissimilar in absolute magnitude than the second predetermined value; and an amplifier coupled to the oscillator and having an amplifier bias node upon which the second bias signal is forwarded to regulate a gain applied to the oscillator.