| 基于DDS芯片的信号源应用设计 |
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| 引用本文： | 刘明成,孙景瑞,武津城. 基于DDS芯片的信号源应用设计[J]. 天津师范大学学报(自然科学版), 2008, 28(4): 66-68 |
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| 作者姓名： | 刘明成 孙景瑞 武津城 |
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| 作者单位： | 天津师范大学,物理与电子信息学院,天津,300387 |
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| 基金项目： | 天津市教委资助项目 |
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| 摘 要： | 结合DDS器件AD9854的结构原理和功能特点，设计了利用AVR单片机ATmega 128控制AD9854实现的程控信号源电路，并针对ATmega128与AD9854之间的硬件接口电路和键盘控制电路，设计了可方便实现对信号源输出频率、相位以及信号源工作模式的控制，使之输出高稳定度、高分辨率的信号．
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| 关 键 词： | DDS AD9854 AVR单片机 ATmega128 |
Application and design of signal generator based on DDS chip |
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| LIU Mingcheng,SUN Jingrui,WU Jincheng. Application and design of signal generator based on DDS chip[J]. Journal of Tianjin Normal University(Natural Science Edition), 2008, 28(4): 66-68 |
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| Authors: | LIU Mingcheng SUN Jingrui WU Jincheng |
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| Affiliation: | (College of Physics and Electronic Information, Tianjin Normal University, Tianjin 300387, China) |
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| Abstract: | According to the construction principle and functional characteristics of AD9854 which is designed using advanced direct digital synthesis （DDS） technology, a programmable signal generator in which the chip AD9854 is controlled by AVR singlechip of ATmega 128 is designed. By using the hardware interface circuit and the keyboard control circuit, frequency and phase of the outcoming signal and working model of the signal generator can be con- trolled conveniently, and the outcoming signal has high stability and high resolution. |
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| Keywords: | DDS AD9854 ATmegal28 |
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