基于VHDL的正弦波发生器设计  

Design of sine wave generator based on VHDL

作　　者：韩素敏[1] 郑征[1] 

机构地区：[1]焦作工学院,河南焦作454000

出　　处：《陕西工学院学报》2003年第4期8-10,共3页Journal of Shaanxi Institute of Technology

摘　　要：　传统的用分立元件或通用数字电路元件设计电子线路的方法设计周期长,花费大,可移植性差。本文以正弦波发生器为例,利用EDA技术设计电路,侧重叙述了用VHDL来完成直接数字合成器(DDS)的设计,DDS由相位累加器和正弦ROM查找表两个功能块组成,其中ROM查找表由兆功能模块LPM＿ROM来实现。The traditional method of designing electronic circuits used the discrete component or general digital circuits components and it took a long time with a high cost. But the transplantability was unsatisfactory. In this paper, by taking sine wave generator as an example, the circuits is designed by means of EDA. The design of DDS based on VHDL is thoroughly discussed. DDS is made up of the phrase accumulator and sine ROM look-up table, among which ROM look-up table is realized by functional EAB chip. 

关 键 词：VHDL DDS 正弦波发生器 

分 类 号：TN74[电子电信—电路与系统]