摘要
主要介绍美国模拟器件公司的高性能直接数字频率合成器(DDS)AD9858的性能,给出其内部功能模块,并简要介绍其工作的波形图。重点介绍其在雷达信号源中的应用,给出电路性能对雷达性能的影响,同时给出采用此电路实现的雷达信号源的电路原理图及波形图,介绍重要控制信号的功能。
The high performance direct-digital synthesizer(DDS) AD9858 and its application in signal source of radar are introduced. The functional block diagram and I/O synchronization timing diagram of the chip are given.The effect of chip on radar performance is also presented.The circuit schematic drawing,waveform of the radar signal source are shown.Functions of the important control signal are described.
出处
《电子元器件应用》
2004年第9期16-19,共4页
Electronic Component & Device Applications
关键词
频率转换字
频率分辨率
电扫描
波束指向角
frequency tuning words
frequency resolution
electrical sweep
beam directional angle
