基于PLL技术和MSP430单片机的正弦信号发生器

Sinusoidal signal generator based on PLL and MSP430 SCM

在现代无线通信技术中,高频率正弦信号起着十分重要的作用,因而高质量的正弦信号的需求也日益变高。为了满足需求,制作出能产生高稳定度和高准确度的正弦信号发生器也越发迫切。在总结经验的基础上,设计出一种新型正弦信号发生器。该信号发生器以PLL技术为基础,产生稳定的高频正弦信号,以MSP430F149单片机作为控制中心,应用按键和显示电路,实现输出频率的递进与显示。经过测试,系统方便实用,能输出频率为20 MHz^100 MHz的正弦信号,同时输出误差控制在允许范围内,能满足实际需求,并能投入到实际生产应用中去。

In modern wireless communication technology, high frequency sinusoidal signal is very important as the request of sinusoidal signal which has high quality is high. To satisfy the request, it is necessary to make out sinusoidal signal generator with high stability and accuracy. A new sinusoidal signal generator based on experience is designed, which uses PLL technology to produce stable high frequency sinusoidal signal, uses MSP430F149 as the controller, key and display circuit is used to realize the increase and display of output signal. After test, the system is convenient and useful. It can export signal ranging from 20 MHz to 100 MHz and its error is in the permitted range. It can meet the actual requirements and can be used in the actual application.