Patent ID: 8446190

Claim:
A frequency divider comprising: a prescaler configured to generate a plurality of intermediate frequency signals having a same phase difference with respect to one another in response to an oscillation frequency signal, the prescaler operating at a first frequency, wherein the prescaler comprises: a first divider configured to divide the oscillation frequency signal with a fixed first frequency ratio to provide a first plurality of frequency signals having a same phase difference with respect to one another; a logic level converter configured to convert logic levels of the first plurality of frequency signals from a first level to a second level and thereby provide a second plurality of frequency signals having a same phase difference with respect to one another; and an overlap prevention circuit configured to prevent overlap of adjacent frequency signals in the plurality of second frequency signals and provide the plurality of intermediate frequency signals; and a plurality of modulus dividers commonly coupled to the prescaler and configured to respectively divide the plurality of intermediate frequency signals by respective ratios to provide a plurality of division frequency signals in response to a control signal, the plurality of modulus dividers operating at a second frequency less than the first frequency.