摘要
结合DDS和PLL的技术优点,采用DDS+PLL环外混频的组合方式,以AD9956芯片为核心设计了一种高性能的雷达频率合成器,着重阐述了核心芯片的性能、结构及使用方法,以及控制程序设计方法,并对频率合成器的性能进行了分析。
In view of the respective advantages of the Direct Digital Frequency Synthesizer（DDS） and the integrated Phase Locked Loop（PLL）, a high performance radar frequency synthesizer is designed. It is formed by the DDS chip AD9956 using the DDS＋PLL technology. The performance, structure and application method of the core chip and the design method of the control program are introduced especially. At the same time, the performance of the frequency synthesizer is analysed detailedly.
出处
《舰船电子工程》
2011年第12期181-184,共4页
Ship Electronic Engineering
