| 基于AD9951射频正弦波信号发生器的设计 |
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| 引用本文： | 龚玉梅.基于AD9951射频正弦波信号发生器的设计[J].国外电子元器件,2009(9):71-72. |
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| 作者姓名： | 龚玉梅 |
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| 作者单位： | 中国科学院上海技术物理研究所; |
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| 基金项目： | 国家863基金项目(07K3541200) |
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| 摘 要： | 介绍DDS的工作原理，设计完成以DDS器件AD9951为核心、频率范围为30～125MHz的射频正弦波信号发生器系统，可通过计算机RS232串口设置输出频率和幅度。对系统进行测试，结果表明该系统性能良好。并分析射频信号链路各部分对输出射频信号的影响。
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| 关 键 词： | 射频信号发生器 直接数字频率合成器(DDS) AD9951 RS232 正弦波 |
Design of RF sine wave generator based on AD9951 |
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| GONG Yu-mei.Design of RF sine wave generator based on AD9951[J].International Electronic Elements,2009(9):71-72. |
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| Authors: | GONG Yu-mei |
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| Affiliation: | GONG Yu-mei(Shanghai Institute of Technical Physics,CAS,Shanghai 200083,China) |
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| Abstract: | This paper introduces the working principle of DDS and the system design of a radio frequency sine wave signal generator,which uses a DDS IC AD9951 as the core,its frequency range is from 30MHz to 125MHz,it realizes set of output frequency and amplitude through the PC RS232 series port.The test result shows that the system has good performance,then analyzes the effect of every single part of the RF signal route on the output signal. |
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| Keywords: | radio frequency signal generator Direct Digital Synthesizer(DDS) AD9951 RS232 sine wave |
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