基于FPGA和8051IP核高精度DDS信号发生器设计  

Design of High-Precision DDS Signal Generator Based on FPGA and 8051 IP Core

作　　者：赖义汉[1] 傅智河[1] 张卫平 LAI Yihan;FU Zhihe;ZHANG Weiping(Longyan University,Longyan,Fujian 364000,China)

机构地区：[1]龙岩学院,福建龙岩364000

出　　处：《龙岩学院学报》2025年第2期38-44,共7页Journal of Longyan University

基　　金：龙岩高新区(经开区)奇迈科技创新基金项目(2021GXQQM11)。

摘　　要：针对传统数字信号发生器电路结构相对复杂,提出一种基于8051 IP核和DDS数字合成器技术,实现频率、波形、幅度等连续可调节的高精度信号发生器。由键盘输入频率值及波形类型,经8051 IP核处理输出频率控制字给DDS模块,读取数据存储器ROM内的波形数据进而实现频率和波形的调节,通过DAC转换器输出模拟信号,在单片的FPGA芯片上实现高精度数字信号发生器,其具有外围电路简单、频率范围宽、精度高、响应速度快等特点。In view of the relatively complex circuit structure of the traditional digital signal generator,this paper introduces a high-precision signal generator based on 8051 IP soft core and DDS digital synthesizer technology,which can realize the continuous adjustment of frequency,waveform and amplitude.The frequency value and the waveform type are input by the keyboard,the frequency control word is output to the DDS module through 8051 IP soft core processing,the waveform data in the data memory ROM is read to realize the control of the frequency and the waveform,an analog signal is output through a DAC converter,and a high-precision digital signal generator is realized on a single FPGA chip.It has the characteristics of simple peripheral circuit,wide frequency range,high precision and fast response.

关 键 词：8051 IP DDS FPGA 信号发生器 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]