基于ARM与DDS的高精度正弦信号发生器设计  

The design of high precision signal generator based on ARM and DDS

作　　者：徐晓霞[1] 

机构地区：[1]西安工业大学北方信息工程学院电子信息系,陕西西安710025

出　　处：《电子设计工程》2015年第23期186-189,共4页Electronic Design Engineering

基　　金：陕西省教育厅专项科研计划项目(08JK311)

摘　　要：随着电子技术的不断发展与进步,现代的电子测量、通信系统越来越需要有高精度和灵活的正弦信号源进行测量和调试。为了满足外场试验对便携式信号发生器的需要,利用直接数字合成技术,通过ARM芯片STM32实现对DDS芯片ML2035的控制,产生从0~25 k Hz的正弦信号。结论表明,使用ARM和ML2035构成的正弦信号源的频率具有精度高的特点,设计方法对于特定场合的应用具有借鉴意义。With the continuous development and progress of electronic technology, electronic measurement, modern electronic measurement and communications systems need for high precision and flexible sine signal source. In order to meet the need of portable signal generator in outdoor experiments, a function signal generator is proposed. It uses direct digital synthesis tech- nology and ML2035 DDS chip, which is controlled by ARM chip STM32. it can generate sine signal from 0--25 kHz. The con- clusion can be made that sine signal generation has high precision made by ARM and ML2035, and the design methods can be useful to the special.

关 键 词：正弦信号源 STM32 DDS ML2035 

分 类 号：TN911.23[电子电信—通信与信息系统]