一种新型信号发生器的设计

Design of a new signal generator

在科研、电子实验教学等方面,信号发生器必不可少,同时对于信号发生器的波形准确度、参数测量等方面要求也越来越高。直接数字频率合成(DDS)是近年来发展较快的一种数字化技术,它有着更快速的变频性能,有着比参考源晶振相位噪声小的相位噪声,且可以工作在较宽的频率范围,有着更精细的频率调整分辨率。因此,文章设计了一种新型基于FPGA与MCU双核心的DDS信号发生器。

Signal generators are indispensable in scientific research,electronic experimental teaching,etc,At the same time,the requirements for the waveform accuracy and parameter measurement of signal generators are becoming higher and higher.Direct digital frequency synthesis(DDS)is a fast-growing digital technology.in recent years.It has faster frequency change performance,has a phase noise smaller than the reference source crystal phase noise,and can work in a wider frequency range with a more refined frequency adjustment resolution.In this paper,a new DDS signal generator based on FPGA and MCU dual-core is designed.