Patent ID: 7493229

Claim:
A method for adjusting an operation of a phase locked loop (PLL) circuit based on a sensed temperature, comprising: sensing an operational temperature of an integrated circuit device associated with the PLL circuit with one or more thermal sensors provided on the integrated circuit device, wherein the one or more thermal sensors are configured for use in controlling an operation of the integrated circuit device and an operation of the PLL circuit; controlling an operation of the PLL circuit based on the operational temperature sensed by the one or more thermal sensors; generating a compensation voltage input signal to a voltage controlled oscillator of the PLL circuit based on the operational temperature, wherein the compensation voltage input signal modifies a lock frequency range of the PLL circuit, wherein sensing an operational temperature of an integrated circuit device comprises: generating at least one voltage using the one or more thermal sensors; providing the at least one voltage to a thermal monitoring mechanism; converting the at least one voltage to at least one digital value using the thermal monitoring mechanism; and generating an operational temperature value of the integrated circuit device based on the at least one digital value, and wherein the one or more thermal sensors comprise a plurality of thermal sensors and the at least one voltage comprises a plurality of voltages, and wherein converting the plurality of voltages to at least one digital value comprises: converting each voltage to a corresponding digital value; generating an average digital value; and generating the operational temperature of the integrated circuit device based on the average digital value.