Clock signal synthesizer with multiple frequency outputs and method for synthesizing clock signal

Abstract

A method for synthesizing a clock signal with multiple frequency outputs for use in a converter for converting a non-interlacing scan data into an interlacing scan data is disclosed. The converter provides a first reference clock signal with a frequency FThe method includes the steps of receiving the first reference clock signal with the frequency Fto generate and output a clock signal with a frequency F×N, proceeding a divided-by-Pand a divided-by-Poperations on the clock signal with a frequency F×N, respectively, to output a first output clock signal with a frequency F×N/Pand a second output clock signal with a frequency F×N/Prespectively. The value P/Pcorrelates to a ratio of the pixel number of a horizontal scan line in the non-interlacing scan data to that in the interlacing scan data. In addition, a clock signal synthesizer with multiple frequency outputs is also disclosed.