基于FPGA的DDS信号源设计与实现

Design and realization of signal generator with DDS based on FPGA

利用DDS和FPGA技术设计一种信号发生器.介绍了该信号发生器的工作原理、设计思路及实现方法.在FPGA器件上实现了基于DDS技术的信号源,并可通过键盘控制其输出波形的各种参数,频率可控范围为100 Hz^10 MHz,频率调节步进为100 Hz,频率转换时间为25ns.

A kind of signal generator based on DDS and FPGA technology is designed. The principle, design and realization of this signal generator are introduced. The DDS signal generator is realized by utilizing FPGA device, with its output parameters are controlled by keyboard directly. Frequency scope in 100 Hz to 10 MHz, frequency step 100 Hz, and the frequency converting time is 25 ns.