V2EX clock signal

Clock Signal

释义 Definition

时钟信号:在数字电路与计算机系统中用于“同步/定时”的周期性电信号(通常为方波),用来指示电路何时采样数据、更新状态或执行一步操作。常见参数包括频率、占空比、相位抖动(jitter)等。

发音 Pronunciation (IPA)

/klk snl/

例句 Examples

The clock signal drives the counter.
时钟信号驱动计数器运行。

If the clock signal has too much jitter, the system may sample data at the wrong time and cause intermittent errors.
如果时钟信号抖动过大,系统可能在错误的时刻采样数据,从而产生间歇性故障。

词源 Etymology

clock 原指“钟、时钟”,来自中古荷兰语/中古低地德语中与“钟声、敲钟”相关的词(与 cluck/klok 等拟声形式有关),后来引申为“计时装置”;signal 来自拉丁语 signum(标记、信号)。组合成 clock signal 时,含义即“用来提供计时/同步标记的信号”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • The Art of Electronics(Horowitz & Hill)讨论数字电路中时钟信号与时序、噪声等问题。
  • Digital Design and Computer Architecture(Harris & Harris)以时钟信号解释同步系统、寄存器与流水线的工作方式。
  • CMOS VLSI Design: A Circuits and Systems Perspective(Weste & Harris)涉及时钟分配、时钟偏斜(skew)与时序约束。
  • Computer Organization and Design(Patterson & Hennessy)在处理器与同步逻辑章节中多次使用“clock signal/clock”相关术语。
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