摘要
为了满足高频电子线路实验需要,提高正弦波的稳定性,设计了基于DDS芯片AD9851的高频正弦波发生器.该系统以STC10F08为核心,并控制AD9851芯片产生正弦波的频率,信号通过滤波网络后由低失真放大器AD8009放大输出.实验结果表明本信号源可输出0.1~45 MHz正弦波,最大频率分辨率达100 Hz,输出幅度在0.1~1V可调且幅度误差小于10%,有较高的稳定度.
In order to meet the needs of high-frequency electronic circuit experiments and improve the stabil⁃ity of sinusoidal signals,a high-frequency sine wave generator based on DDS chip AD9851 was designed.STC10F08 was taken as the core of this system controls the frequency of sine wave generated by the AD9851 chip.The signal passes through the filtering network firstly,and then is amplified by the low distortion ampli⁃fier AD8009.The experimental results show that the signal source can output 0.1~45 MHz sine waves,the maximum frequency resolution is up to 100 Hz,the output amplitude is adjustable from 0.1~1 V and the am⁃plitude error is less than 10%,which has higher stability.
作者
李瑜庆
田娟
LI Yu-qing;TIAN Juan(College of Electronic and Electrical Engineering,Bengbu University,Bengbu 233030,China)
出处
《通化师范学院学报》
2020年第2期5-8,共4页
Journal of Tonghua Normal University
基金
安徽省自然科学重点项目(KJ2017A565,KJ2017A566)
蚌埠学院自然科学项目(2017ZR10)
蚌埠学院质量工程项目(2018JYXML3)
省级教学研究项目(2017jyxm0552)
关键词
高频
正弦波
频率
幅度
high frequency
sine wave
frequency
amplitude
