Multiphase clock serializer and signal conversion system

The invention relates to a multiphase clock serializer and a signal conversion system. The multiphase clock serializer is applied to the signal conversion system with a single frequency, and comprisesa multi-channel parallel data preprocessing circuit, an equal-width continuous pulse signal generating circuit and a multiplexing circuit; the multi-channel parallel data preprocessing circuit is used for preprocessing multi-channel parallel data to obtain multiple pieces of preprocessed serial data, and meanwhile providing sufficient establishment time for subsequent serial processing; and a plurality of equal-width pulse signals can be generated by the equal-width continuous pulse signal generating circuit, so that the multiplexing circuit can perform final serial processing on the multi-channel preprocessed serial data according to a plurality of equal-width clock pulses to obtain a serial data stream. The equal-width pulse signals can be generated without use of a frequency divider, so that the structure of t