基于AD9910的多通道信号发生器

Multi-channel signal generator based on AD9910

摘要:

基于直接数字频率合成(DDS)技术，采用现场可编程门阵列(FPGA)，通过对DDS芯片AD9910的控制，实现多通道信号发生器的设计。所设计的信号发生器具有高频率精度、低杂散、捷变频的特点，并可编程调整输出频率值以及多路输出信号之间的相位值。实测结果表明，本文所研究的方法和研制的系统是可行、有效的，具有广阔的应用前景。

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.