中国半导体行业协会封装分会会刊

中国电子学会电子制造与封装技术分会会刊

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电子与封装 ›› 2025, Vol. 25 ›› Issue (9): 090301 . doi: 10.16257/j.cnki.1681-1070.2025.0090

• 电路与系统 • 上一篇    下一篇

时钟恢复系统研究与实现*

鲍宜鹏1,2,苗韵1,2,杨晓刚1,2,傅建军1,2   

  1. 1. 中科芯集成电路有限公司,江苏 无锡 214072;2. 智能汽车安全技术全国重点实验室,江苏 无锡 214072
  • 出版日期:2025-09-28 发布日期:2025-09-28
  • 作者简介:鲍宜鹏(1985—),男,江苏宿迁人,硕士,高级工程师,主要研究方向为SoC设计方法学。

Research and Implementation of Clock Recovery System

BAO Yipeng1,2, MIAO Yun1,2, YANG Xiaogang1,2, FU Jianjun1,2   

  1. 1. China Key System & Integrated Circuit Co., Ltd., Wuxi 214072, China; 2. State Key Laboratory of Intelligent Vehicle Safety Technology, Wuxi 214702, China
  • Online:2025-09-28 Published:2025-09-28

摘要: 时钟设计是芯片设计中的关键环节之一。芯片的系统时钟设计必须考虑外部环境的影响,还应考虑电路的复杂性与成本。通过对时钟恢复系统(CRS)实现方法及其特性的综述,指出现有CRS设计存在的不足。结合芯片内置的振荡器特性,采用全数字电路的设计方法,设计并实现一种时钟恢复系统,该电路结构简单、成本低,在通信和无线电系统等领域具有广泛的应用前景。

关键词: 时钟恢复系统;全数字电路;振荡器

Abstract: Clock design is one of the critical aspects of chip design. The system clock design of the chip must consider external environmental factors, as well as the complexity and cost of the circuits. By summarizing the implementation methods and characteristics of the clock recovery system (CRS), the design shortcomings of existing CRSs are identified. By combining the characteristics of the chip’s built-in oscillator, a full-digital circuit design method is proposed to implement a clock recovery system. This circuit features a simple structure and low cost, offering broad application prospects in fields such as communications and radio systems.

Key words: clock recovery system; full-digital circuit; oscillator

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