一种高精度信号源的设计  

Design of A High Accurate Signal Generator

作　　者：鲍丽星[1] 陈晓争 

机构地区：[1]南京航空航天大学电工电子实验中心,江苏南京211100 [2]南京熊猫电子集团,江苏南京210002

出　　处：《计算机测量与控制》2008年第4期588-590,共3页Computer Measurement &Control

摘　　要：信号源是现代电子系统的重要组成部分,目前电子测量仪器对信号源的频率稳定度和准确度的要求越来越高,频率合成技术成为目前研制信号源的关键技术;文中介绍了一种基于直接数字频率合成技术的信号源的实现,信号产生选用DDS专用芯片AD9852;介绍了系统的总体方案,详细论述了信号产生模块、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;利用该技术研制的信号源精度高、频率范围宽,结构简单、使用方便、交互性好,性能稳定可靠。Signal generator is an important component in modern electronic system. The requirements of frequent accuracy and stabilization of the signal generator is increasing. Technology of frequency synthesize is important in designing signal generator, The paper introduces a signal generator based on the DDS chip AD9852. The design of the whole system, the signal generating module, man-machine interactive module, control and data processing module and the software flow are mainly discussed. The signal generator adopts DDS technology to generate high accuracy and wide frequency range signal . The system achieves concise structure, convenience usage and stable and reliable performance.

关 键 词：DDS技术 AD9852 信号源 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]