Design of a Novel Phase Tunable Multi-channel Signal Generator
Zeng Zhi-hu · Science Technology and Engineering · 2014
A design of phase tunable multi-channel sinusoidal signal generator based on AD9959 was presented.The whole design was based on direct digital frequency synthesis( DDS) technology,and the signal generator was controlled by CY7C68013 based on USB2. 0. The system hardware and software were analyzed and the experimental circuit was set up. Experimental results showed that the frequency of the output signal is stable and frequency switching speed is fast. The source signal can realize the phase difference constant output between any two channels.And the four channels of signal source all can adjust the index of frequency,amplitude and phase independently.