APPARATUS AND METHOD FOR REACTING TO A CHANGE IN SUPPLY VOLTAGE

摘要

Aspects of the disclosure provide an integrated circuit (IC) (120). The IC includes a clock generation and supply voltage monitoring circuit (221) configured to monitor a supply voltage to the IC and selectively modify an operating frequency of the IC in response to a sensed change in the supply voltage. The IC further includes a frequency comparing and compensating circuit (224) configured to output a control signal, based on the operating frequency, to a voltage supply to modify the supply voltage so as to compensate for changes in the operating frequency and return the operating frequency to a target operating frequency.