Patent ID: 8941419
Filing Date: 2015-01-27
Classification: H03K,H04B

Abstract:
1. A device for providing a spread frequency clock signal, comprising: an input to receive a first clock signal having a first frequency; a programmable clock divider to generate the spread frequency clock signal from the first clock signal; a first Feedback Shift Register, FSR, comprising at least one stage, said FSR being adapted to generate any of an odd number M of different values, said FSR being adapted to pseudo-randomly generate a first sequence of first output values, each corresponding to one of said M different values, and to provide a first output value, according to said sequence, during each clock cycle of the spread frequency clock signal; a control unit adapted to select a division factor of the programmable clock divider based on the first output value of the FSR during each clock cycle of the spread frequency clock signal; an output for providing the spread frequency clock signal.