摘要
锁相环日益广泛地应用于通讯、微处理器系统中,并且随着集成电路的发展以及SOC技术的出现,己经成为超大规模集成电路中不可或缺的模块。特别是无线通讯、高速处理器等领域,对锁相环电路的性能提出了越来越高的要求,锁相环电路工作在高速环境下己成为当前的一大挑战。
本文在对锁相技术的发展历史和研究现状调查的基础上,总结了锁相环的各种实际应用和分类,从锁相系统的工作原理入手,对锁相环的各部分功能了深入的分析,并给出了各部分电路的具体设计。
关键词:锁相环,研究,应用,鉴相器
Application and research of PLL
Abstract
Phase locked loop(PLL) has been widely implemented in communication and microprocessor system, and it has became the required module in the VLSI along with the development of IC and SOC technology. Especially in the realm of wireless communication and high speed processor, the higher requirement for PLL circuit performance is proposed. Therefore, the PLL circuit performance on the high-speed condition is challenged currently.
The paper is base on the research for the PLL technology development history and current state, summarizing the various application and classification of PLL. Analyzing the function of every parts of PLL from the perspective of PLL system working principle. Finally, we implement the circuit design of PLL.
Key words:Phase locked loop,research,application,PD