V2EX pll

PLL

释义 Definition

PLLphase-locked loop 的缩写,中文常译为锁相环:一种利用反馈机制,使输出信号的相位与频率跟随并锁定参考信号的电子控制系统,常用于频率合成、时钟恢复、通信与同步等场景。(在不同领域也可能有其他含义,但最常见的是电子工程中的“锁相环”。)

发音 Pronunciation (IPA)

/pi l l/

例句 Examples

A PLL can lock onto a noisy signal.
PLL 可以锁定到一个带噪声的信号上。

In a wireless receiver, the PLL stabilizes the local oscillator and helps the system maintain synchronization with the incoming carrier.
在无线接收机中,PLL 用来稳定本振,并帮助系统与输入载波保持同步。

词源 Etymology

PLL 来自短语 phase-locked loop 的首字母缩写:phase(相位)+ locked(锁定)+ loop(环/反馈回路),直接反映其工作原理通过反馈回路“锁定”相位关系。

相关词 Related Words

文学/著作中的用例 Literary Works

  • Phase-Locked Loops: Design, Simulation, and Applications(Roland E. Best)
  • The Art of Electronics(Paul Horowitz & Winfield Hill)
  • CMOS Analog Circuit Design(Phillip E. Allen & Douglas R. Holberg)
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