基于DP83640的高精度时钟的研制

摘要

This article introduced how to design the high precision clock based on DP83640, and how to synchronize the clock of DP83640 with the UTC based on the analysis of the structure of the clock inside DP83640. With this method, the clock can achieve high Synchronous precision, and can provide high precision time value at any time.%文章基于DP83640研制了一种高精度时钟.该方案在分析了DP83640的时钟电路结构的基础上,阐述了如何使其内部的时钟与UTC时间获得较高的同步精度的方法,从而实现了可以获得任意时刻的高精度时间的高精度时钟.