| 基于D/A参考电压调幅的信号发生器设计与实现 |
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| 引用本文： | 王晓飞,张伏江,李东,何昭.基于D/A参考电压调幅的信号发生器设计与实现[J].电子技术应用,2013,39(4):52-54. |
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| 作者姓名： | 王晓飞 张伏江 李东 何昭 |
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| 作者单位： | 1. 北京信息科技大学光电学院,北京,100192
2. 中国计量科学研究院电磁所,北京,100013 |
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| 基金项目： | 国家科技支撑计划课题资助项目 |
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| 摘 要： | 信号发生器以FPGA为核心器件,采用直接数字频率合成(DDS)技术,其信号幅度由D/A芯片THS5661控制,通过控制D/A芯片的参考电压来控制信号幅度的输出。该方案可实现多种信号波形的幅值调节,调节范围为0±5 V,分辨率为0.1 V,并且可以实现信号频率和相位的调节。
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| 关 键 词： | 数/模转换 参考电压 现场可编程门阵列 DDS |
Design of signal generator based on the amplitude modulation of D/A reference voltage |
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| Wang Xiaofei
,
Zhang Fujiang
,
Li Dong
,
He Zhao.Design of signal generator based on the amplitude modulation of D/A reference voltage[J].Application of Electronic Technique,2013,39(4):52-54. |
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| Authors: | Wang Xiaofei Zhang Fujiang Li Dong He Zhao |
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| Abstract: | Signal generator based on FPGA uses the direct digital synthesis technology.Its signal amplitude is controlled by D/A THS5661.We can control the output of the signal through controlling the reference voltage of D/A.This scheme can realize a variety of signal waveform amplitude adjustment.The adjusting range of signal amplitude is 0~±5 V and the resolution is 0.1 V.Its frequency and phase also can be adjusted. |
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| Keywords: | D/A referece voltage FPGA DDS |
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