V2EX timing error detector

Timing Error Detector

Definition / 定义

timing error detector时序误差检测器。在数字电路、通信或时钟/同步系统中,用来检测信号到达时间是否偏离预期(过早/过晚)的电路或算法模块,常用于时钟数据恢复(CDR)、延迟锁定环(DLL)、相位锁定环(PLL)以及低功耗电压频率调节等场景。(在不同领域也可能指更具体的实现方式,如“早-晚门(bang-bang)相位检测”一类。)

Pronunciation / 发音

/tam rr dtktr/

Examples / 例句

The timing error detector flags when the data arrives too late.
时序误差检测器会在数据到达过晚时发出标记。

In a high-speed serial link, the timing error detector helps the CDR adjust the sampling clock to reduce jitter and bit errors.
在高速串行链路中,时序误差检测器帮助时钟数据恢复电路调整采样时钟,从而降低抖动与误码率。

Etymology / 词源

该短语由三部分组成:timing(时序/定时)+ error(误差)+ detector(检测器)。其中 detector 源自拉丁语 detegere(“揭露、发现”),在工程语境中常指“用于识别某种状态或偏差的装置/模块”。合起来即“用于发现时序偏差的检测器”。

Related Words / 相关词

Literary Works / 文学与著作提及

  • Behzad Razavi, Design of Integrated Circuits for Optical Communications(讨论高速接收机中的时钟与数据恢复、相位/时序误差检测思想与实现)
  • David M. Harris & Sarah L. Harris, Digital Design and Computer Architecture(在同步时序、电路时序约束与相关错误概念的讲解中涉及“timing error”与检测/验证思路)
  • William J. Dally & John W. Poulton, Digital Systems Engineering(涵盖高速数字系统中的定时、同步与误差检测相关内容)
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