Abstract:As the development of multicarrier communication technology, multi-channel signal generator has become more and more important. Based on the Direct Data Synthesis(DDS) technology, this design uses FPGA to control the AD9910 to implement a kind of multi-channel signal generator. This multi-channel signal generator features high frequency precision, low stray, fast frequency switching, and programmable adjustment of the multi-phase value of the output signal. Measured results show that this method is feasible and effective, and it would be widely applied in the future.