Stmicroelectronics International N.v.

Stmicroelectronics (crolles 2) Sas

Junaid Yousuf

Nitin Kumar Gupta

Kallol Chatterjee

Pierre Dautriche

Nitin Agarwal

A variable frequency clock generator. In aspects, a clock generator includes a droop detector circuit configured to monitor a voltage supply to an integrated circuit. If the supply voltage falls below a specific threshold, a droop voltage flag may be set such that a frequency-locked loop is triggered into a droop voltage mode for handling the voltage droop at the supply voltage. In response, a current control signal that is input to an oscillator that generates a system clock signal is reduced by sinking current away from the current control signal to the oscillator. This results in an immediate reduction on the system clock frequency. Such a state remains until the voltage droop has dissipated when the current path is removed for sinking some of the current.

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Srinagar, India

Junaid Yousuf