| 基于AD9858的快速捷变频频率合成器的设计 |
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| 引用本文： | 夏永祥,郭德淳,余军,费元春.基于AD9858的快速捷变频频率合成器的设计[J].现代雷达,2005,27(7):58-61. |
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| 作者姓名： | 夏永祥 郭德淳 余军 费元春 |
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| 作者单位： | 1. 北京理工大学信息科学技术学院,北京,100081
2. 海军飞行学院教研部,辽宁,葫芦岛,125001 |
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| 摘 要： | 选用内部时钟可达1GHz的高性能直接数字合成频率源DDS芯片AD9858作为核心器件设计频率合成器，采用DDS DSP SAWO的设计方案，设计成功905MHz低相噪、高稳定度的声表面波振荡器为AD9858提供参考时钟，整个系统采用高性能的DSP作为控制电路。文中详细阐述了AD9858芯片的主要性能及其在快速捷变频频率合成器设计中的应用方法。
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| 关 键 词： | AD9858芯片 声表谐振器 直接数字合成频率源 频率控制字 |
| 修稿时间： | 2004年3月26日 |
AD9858 Based Frequency Synthesizer for Fast Frequency Hopping |
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| XIA Yong-xiang,GUO De-chun,YU Jun,FEI Yuan-chun.AD9858 Based Frequency Synthesizer for Fast Frequency Hopping[J].Modern Radar,2005,27(7):58-61. |
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| Authors: | XIA Yong-xiang GUO De-chun YU Jun FEI Yuan-chun |
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| Abstract: | The high performance DDS chip AD9858 produced by Analog Device Inc is adopted to design a frequency synthesizer in this paper. A design scheme of DDS +DSP +SAWO is adopted. The designed synthesizer has low phase noise and high stability SAW oscillator to offer a reference clock for AD9858. The whole system adopts high-performance DSP as the control circuit .The main performance characteristics of AD9858 chip and its application to frequency synthesizer with fast frequency hopping is mainly introduced in detail. |
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| Keywords: | AD9858 chip SAWR DDS frequency tuning word |
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