PLL

n.锁相环路；多聚L-赖氨酸

网络释义：锁相环(phase-locked loop)；锁相回路；锁相环电路

网络释义

n.1.锁相环路2.多聚L-赖氨酸

1.锁相环(phase-locked loop)锁相环（pll）：是一种实现相位自动锁定的控制系统。它一般有鉴相器、环路滤波器、压控振荡器等部件组成。

2.锁相回路在锁相回路(PLL)中，相位比较器的作用类似於　(A)加法器　(B)减法器　(C)乘法器　(D)除法器。

3.锁相环路先进的锁相环路(PLL)PLL (phase-locked loop)锁相环路是指这个装置中有一个由相位检测器，环路滤波器，电压控制震荡器以 …

4.锁相环电路采用锁相环电路(PLL),可同时记忆18个电台. 4),视频部分(video)的特点: (1)自动识别CD和VCD碟片.(2)同时安装8枚碟片(CDC功 …

5.数字锁相环(Phase Lock Loop)单数字锁相环（PLL）结构，低抖动 2千伏静电防护能力 低功耗设计，应用于笔记本电脑时会尽可能的最大化电池使用时间 支 …

1.One important application of PLL in microprocessor is to provide on-chip clock for the system. It has been a core module of microprocessor.锁相环在微处理器领域中的一个重要应用就是为系统提供片内时钟，它是微处理器时钟电路中的核心模块。

2.Because of the better spur control than DDS, the Phase Locked Loop (PLL) frequency synthesis is usually used in frequency agile synthesis.锁相频率合成（PLL）具有比DDS更优秀的杂散抑制能力，常用于捷变频率合成。

3.Compared with the structure of the commonly used PLL circuit, that of the circuit implemented by this way is simpler and easier to be made.用该方法实现的电路，比通常所用的锁相环电路结构简单，而且易于实现。

4.If the frequency offset is large enough, the traditional PLL cannot be locked. Such situation would lead to the system corruption.当频差较大时，接收端用于载波恢复的锁相环路无法锁定，导致系统不能正常工作。

5.The PLL includes a phase frequency detector, a charge pump, a low pass filter, a voltage controlled oscillator and a frequency divider .该PLL电路由一个鉴频鉴相器电路、一个电荷泵、一个低通滤波器、一个压控振荡器和分频器组成。

6.Therefore, a more thorough analysis of the output jitter, taking into account optimal loop bandwidth selection, is provided in this paper.因此，本文在考虑最优带宽选择的情况下，对PLL输出时钟抖动特性进行了更深入的研究。

7.The objective of the thesis is to explore the noise sources in PLL and find the proper circuit structures to reduce the noise effects.本文的目的是研究目前应用最广的电荷泵锁相环的噪声特性以寻找减小环路噪声的电路架构。

8.Application of the hardware PLL technology can achieve the synchronous sampling more effectively and help improve the sampling accuracy.采用了硬件锁相环技术，可更加有效实现同步采样，提高了采样精度。

9.USPIO-PLL, as an intracellular contrast agent, can label endothelial progenitor cells with high efficiency.利用USPIO-PLL作为细胞内造影剂可以高效标记内皮祖细胞。

10.The second local frequency signal is provided by an integer-divider after PLL output.二次变频的本振信号由PLL的输出信号经整数分频得到。