基于MSP430F149与AD9850的信号发生器设计

Signal Generator Based On AD9850 and MSP430F149

频率合成技术是目前研制信号源的关键技术介绍了一种基于直接数字频率合成技术的信号源的实现。选用DDS专用芯片AD9850与MSP430F149单片机,并详细介绍了信号产生模块、人机交互模块和控制与数据处理模块的设计与实现,并给出了软件控制框图。该信号发生器具有结构简单、性能优良、使用方便、制作成本低廉等优点。

Frequency synthesizer technology is a key to the development of signal generator.This paper introduces a signal generator based on direct digital frequency synthesizer technology.Special DDS chip-AD9850 and MSP430F149 are selected for signal generation.Details are given to the design of the module for signal generation,module for man-machine interface and module for control and data process.Because of the advantages of simple structure,excellent performance,easy to use,low production cost it is suitable for teaching,research and production needs of the market.