基于ML2037的低频正弦信号发生器的设计

Design of low frequency sine signal generator based on ML2037

以ML2037为技术核心,设计了一种以STC11F单片机为控制器的低频正弦信号发生器。介绍了DDS技术原理以及该系统的硬件电路、软件部分的设计原理。系统工作在单5V电源下,能产生最高391kHz的高精度正弦波,具有频率可调、幅值可粗调、性能稳定、电路简单、价格低等优点。

This paper takes ML2037 as the core technology designs a low frequency sine signal generator which is controlled by MCU STC11F.It describes the principle of DDS technology and the design principles of this system hardware and software.The system works in a single 5V power supply.It can generate highly precise sine wave with highest frequency 391kHz,the frequency and amplitude are adjustable,it possessed of stable performance,simple circuit and low price.