›› 2015, Vol. 28 ›› Issue (6): 179-.

• 论文 • 上一篇    下一篇

基于AD9850的多功能信号源设计

任艳玲   

  1. (江苏理工学院 电信学院,江苏 常州 213001)
  • 出版日期:2015-06-15 发布日期:2015-06-20
  • 作者简介:任艳玲(1969—),女,高级实验师。研究方向:电子信息。E-mail:ylren2009@jsut.edu.cn
  • 基金资助:

    课程改革专项基金资助项目(KC3008)

Design of Multifunctional Signal Source Based on AD9850

REN Yanling   

  1. (School of Telecom,Jiangsu Polytechnic University,Changzhou 213001,China)
  • Online:2015-06-15 Published:2015-06-20

摘要:

AD9850以芯片为多功能信号源频率合成核心,以单片机(89C52)为控制和数据处理核心,实现了正弦波、方波及AM、FM、ASK、FSK、PSK等调制波形的产生和输出。结合键盘和显示部分,实现了任意频率值的选择和显示,构成了一个完整实用的信号发生器。该信号发生器可在10 Hz~40 MHz范围内实现任意频率的输出,步进值和输出幅值可调。经过对系统的最终测试与实验数据分析表明,该系统具有稳定性好、精度高、且范围宽等优点。

关键词: 多功能信号源, DDS, 89c52, AD9850

Abstract:

The multifunctional signal source choose the AD9850 chip as the core of multifunctional signal source frequencysynthetic,use 89C52 to control the DDS AD9850 and data processing.The system can realize much functions,The functions include that outputting sine single and square wave and other conventional waveformas well as AM,FM,ASK,FSK,PSK modulation.with keyboard and display part,Realize  inputting of parameter and display of information,constituted a complete frequency synthesizer,The design realizes arbitrary frequency output from 10 Hz to 40 MHz,step value can be adjusted.After the final test of the system,and the experimental data shows that,the system has good stability,high accuracy,wide range.

Key words: multifunctional signal source;DDS;89c52;AD9850

中图分类号: 

  • TN741