Abstract: A method includes locking onto a spread spectrum clock signal to minimize a phase error between an output clock signal and the spread spectrum clock signal. The spread spectrum clock signal has a time-varying frequency that cycles at a modulation frequency. The method includes minimizing a phase angle between spectral components of the output and spread spectrum clock signals near the modulation frequency. In some embodiments, the method may be performed by a phase locked loop.

Abstract: An apparatus and method for minimizing electromagnetic interference in a microcomputing system. The apparatus and method of the present invention are based on the fundamental aspect of providing an EMI shield specifically dimensioned to receive a microprocessor within the microcomputing system. The apparatus and method of the present invention are further based on the aspect of providing at least one ferrite bead along a power delivery path to attenuate any high-frequency leakage current from the microprocessor that results at the resonant frequencies of the EMI shield.