A Double Channel Waveform Generator Based on DDS

Based on FPGA and DA chip,a functional wave generator whose frequency and phase is controllable is designed with direct digital frequency synthesis(DDS) technology.The principle and structure of DDS and the design thinking and implementation method is expounded.The functional wave generator can achieve the output of the same wave with different phase and the output of different wave by double channel,after designing and testing.It is proved that the design based on FPGA with DDS is dependable and feasible.