直接数字频率合成芯片AD9832原理及其典型应用设计

DDS AD9832 and It's Typical Application

直接数字式频率合成技术可以提供快速的信号建立时间,纯净的信号频谱,方便地产生各种波形,实现各种调制方式,在通信与电子系统中广泛应用。笔者介绍了直接数字频率合成芯片AD9832的组成结构、转换原理和典型应用电路,分析了与80C51的接口时序,并给出了C驱动源代码。

Direct digital synthesis can offer high converting speed,pure singal spectrum,and generate many types of wave- form,realize some modulations. It is widely used in communica- tion and electronic systems because of these special advantages. The composition,operational principle and typical application circuit of AD9832 are introduced. AD9832 to 80C51 interface, timing and C driver source code are discussed.