基于FPGA的DDS信号发生器系统的设计  

On the Design of DDS Signal Generator System Based on FPGA

作　　者：王本有[1] 汪德如[1] 苏守宝[1] 

机构地区：[1]皖西学院计算机科学与技术系

出　　处：《电子技术（上海）》2008年第4期40-42,共3页Electronic Technology

基　　金：安徽高校省级自然科学研究重点项目资助(KJ2007A087)

摘　　要：直接数字频率合成(DDS)技术,已成为频率合成技术的主流方向,现场可编程门阵列(FPGA)技术具有强大的硬件逻辑功能。文章主要阐述DDS的工作原理,基于FPGA设计DDS信号发生器的主要环节。简单介绍了运用Altera公司的QuartusⅡ软件平台,通过硬件设计语言(VHDL)设计频率寄存器、加法器、相位寄存器等功能模块,并将各部件编译综合为一个元件的方法。实验证明,输出波形质量高,效果好。Since the technology of DDS has been the main orientation of Frequency Synthesis Technology, the technology of FPGA owns the powerful hardware logic function.This paper is intended to elaborate the working principles of DDS and the design of the primary parts of DDS signal generator according to FPGA. Besides,it is briefly introduced that with the help of QuartusⅡsoftware,it is by VHDL that the function models,such as frequency register,adder,phase register etc,has been designed and even importantly,these components has been coded and integrated into one element.By experiments,it proves that the input mode is characterized by high quality and excellent effect.

关 键 词：DDS信号发生器 FPGA NCO ROM 

分 类 号：TN74[电子电信—电路与系统]