CLOCK SIGNAL GENERATING DEVICE, COMMUNICATION DEVICE AND SEMICONDUCTOR DEVICE

摘要

PROBLEM TO BE SOLVED: To change the average frequency of a clock signal independently from a reference clock signal.

SOLUTION: A reference clock signal generating circuit 1 generates a reference clock signa. A dividing circuit 2 divides the reference clock signal by a natural number n (≥1). A control circuit 3 controls the dividing circuit 2, and inserts an extension cycle in a designated period. An output circuit 4 outputs a clock signal obtained by the dividing circuit 2. Accordingly, the average frequency of the clock signal is set arbitrarily independently of the reference clock.

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