AD9832 及其在高频测试仪中的应用

直接数字频率俣成是继直接频率合成和间接频率合成后发展起来的第三代频率合成技术。它以独特的优点被广泛应用于雷达，通信电子对抗等电子系统。AD9832是美国AD公司生产的新型直接数字频率合成器（DDS），具有频率转换速度快，频谱纯度高，集成度高等特点，是一种使用方便灵活，功能较强的芯片，介绍了直接数字频率合成器的原理，DDS芯片AD9832的内部结构，管脚功能及其在高频测试仪中的应用。

AD9832 and Its Application in High Frequency Measuring Instrument

Direct digital synthesis is the third frequency synthesis technique after direct synthesis and indirect synthesis. It is widely used in electronic systems because of its special advantages. AD9832 is a new type of direct digital synthesizer produced by Analog Devices Inc. of America. It has high converting speed, pure spectrum and high integration, and is a flexible and enhanced chip. The principle of direct digital synthesizer of AD9832 is introduced. The pin functions and its application in high frequency measuring instrument are also discussed.