| 基于DDS的信号发生器的设计 |
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| 引用本文： | 魏春英,李虹.基于DDS的信号发生器的设计[J].宁夏工程技术,2009,8(4):355-357. |
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| 作者姓名： | 魏春英 李虹 |
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| 作者单位： | 宁夏大学物理电气信息学院,宁夏银川,750021 |
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| 摘 要： | 为了产生正弦信号，以直接数字频率合成技术为基础，采用在线可编程单片机AT89S52为主控制器，结合直接数字频率合成芯片AD9850，实现了从0．1Hz到1MHz最小步进为O．1Hz的频率可调正弦信号的产生，整个系统具有结构简单、控制灵活、信号精度高等特点．
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| 关 键 词： | DDS AT89S52 AD9850 信号发生器 |
Design of signal generator based on DDS |
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| WEI Chunying,LI Hong.Design of signal generator based on DDS[J].Ningxia Engineering Technology,2009,8(4):355-357. |
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| Authors: | WEI Chunying LI Hong |
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| Affiliation: | (School of Physics and Electronic Information Engineering, Ningxia University, Yinchuan 750021,China) |
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| Abstract: | In order to generating sinusoidal wave, the generator, based on DDS, uses the on-line programmable monolithic integrated circuit AT89S52 as the primarily controller, union direct digital frequency synthesis chip AD9850, which range is from 0.1 Hz to 1 MHz in 0.1 Hz frequency step. The system has simply structure with flexible control and higher precision signal. |
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| Keywords: | DDS AT89S52 AD9850 |
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