A high speed synchronization method and apparatus dac

A synchronization method and apparatus for a high-speed DAC to solve the problems in the conventional high-speed output signal is not synchronized DAC technology. The present invention comprises a clock signal input of a predetermined multiple of the frequency and the shunt, to give two different frequencies and transmitted with the clock signal phase; received two same frequency a predetermined multiple of the frequency-divided clock signal from phase respectively, and respectively two frequency-divided clock signal is transmitted; two each received frequency-divided clock signal is sampled, when detecting two frequency-divided clock signal is not synchronized sample, wherein the mask transmits one clock signal within a predetermined time requests received two and re-divided clock signal is sampled until the two frequency-divided clock signal synchronization. The present invention is produced by the time all the way to mask the difference between the clock signal adjusted so that the two synchronized clock signals, to solve the problems in the conventional high-speed output signal is not synchronized DAC technology.