[1]张丽萍,朱尧富.基于FPGA的直接数字频率合成器的设计[J].应用科技,2010,37(02):5-8.[doi:10.3969/j.issn.1009-671X.2010.02.002]
 ZHANG Li-ping,ZHU Yao-fu.Direct digital frequency synthesizer design based on FPGA[J].yykj,2010,37(02):5-8.[doi:10.3969/j.issn.1009-671X.2010.02.002]
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《应用科技》[ISSN:1009-671X/CN:23-1191/U]

卷:
第37卷
期数:
2010年02期
页码:
5-8
栏目:
现代电子技术
出版日期:
2010-02-05

文章信息/Info

Title:
Direct digital frequency synthesizer design based on FPGA
文章编号:
1009-671X (2010) 02-0005-04
作者:
张丽萍朱尧富
台州职业技术学院 电子电气工程系,浙江 台州 318000
Author(s):
ZHANG Li-ping ZHU Yao-fu
Department of Electronic and Electric Engineering, Taizhou Vocational Technical College, Taizhou 318000, China
关键词:
直接数字频率合成FPGAQuartusII查找表
Keywords:
DDS FPGA QuartusII lookup table
分类号:
TN74
DOI:
10.3969/j.issn.1009-671X.2010.02.002
文献标志码:
A
摘要:
为了实现幅值和频率在一定范围连续可调,频率步进达到1 Hz以下信号发生器的设计.采用直接数字频率合成技术(DDS),介绍根据直接数字频率合成技术组成及原理,给出了基于可编程逻辑器件FPGA及相应EDA软件QuartusII实现DDS的具体设计方案及编程实现方法.通过改变设计参数可以调节所产生波形频率和幅度;通过改变ROM查找表中波形数据可以产生任意波形.利用FPGA器件设计DDS,大大简化了电路设计过程,缩短了调试时间,并为修改、添加DDS的功能提供了方便.
Abstract:
To make a signal amplitude and frequency continuously adjustable in a certain range, this paper introduces the structure and principles of DDS (Direct Digital Frequency Synthesizer) for the design of signal generator with frequency stepping less than 1Hz. Also a detailed design method of DDS realization based on FPGA and corresponding EDA software QuartusII is given. It can adjust the frequency and amplitude of a waveform by changing the parameters, and generate arbitrary waveform by changing the waveform data in the ROM lookup table. Designing DDS by making use of FPGA greatly simplifies the design process of electric circuit, shortens the debugging time, and makes it convenient for modification and adding of DDS.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介:张丽萍(1980-),女,讲师,主要研究方向:电子技术,E-mail:zlp9943@163.com.
更新日期/Last Update: 2010-03-15