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- Charge pump phase locked loop 电荷泵锁相环
- The PLL (phase lock loop) is realized by form of charge pump, its loop filter is passive two-order LPF. Compared to other form of active filter, this CP PLL has less noise, which does some good to its output spectrum. 微波锁相环采用电荷泵的形式,其环路滤波器为无源二阶低通滤波器,相比采用有源滤波器的锁相环,它不会附加有源噪声,而且滤波器结构简单,便于调试。
- Design of High Performance Charge Pumps in Phase Locked Loops 锁相环中高性能电荷泵的设计
- One example is the phase comparator of a phase locked loop. 一个例子是相锁环状态下的相位比较器。
- Phase locked loop (PLL) has been widely used in communication system. 锁相环路在通信系统中得到了广泛的应用。
- Resolution of Systematic Design Trouble with PLD Interior Phase Lock Loop. 使用PLD内部锁相环解决系统设计难题。
- The phase jitter of output signal of the PLL( phase locked loop) frequency doubler is analyzed. 定量分析了数字式锁相倍频器输出信号的相位抖动.
- TMS320F240 DSP is used to realize the digital Phase Locked Loop(PLL) and real-ize the hot-swap function of the parallel system. 采用TMS320F240型DSP芯片实现数字锁相同步,实现并联系统的热插拔功能。
- This paper discusses a method to demodulate FSK signal, on the basis of FPGA chip, by applying all- digital phase locked loop. 本文研究了一种采用全数字锁相环实现频移键控FSK信号解调的新方案。
- The basic principle of using phase locked loop technique to realize the design and analysis of program controlled frequency syntheses was introduced. 本文简要地叙述了应用锁相环路实现信号合成的基本原理。
- Abstract：The Phase Lock Loop (PLL) Circuits are widely used in electronic systems especially in receivers. 锁相环路是在现代各种电子系统中，特别是在接收机中应用广泛的一种基本电路。
- The coupling visibilities(CV) of temperature sensor heads were measured with phase lock loop technique. 采用锁相环技术测试了各传感器的分光可见度随温度的变化关系。
- In this paper the working princi-ple and desiging method of which phase locked loop are discussed the experimental resuIts are given also. 本文分析了无相差锁相环的原理和设计方法，并给出了实验结果。
- The transmitter uses a phase locked loop to provide multi-phase clocks for PRBS circuit and 4-to-1 multiplexer to convert parallel data into serial one. 在传输端利用锁相迴路提供多相位时脉输出给乱数产生器和4对1多工器，并将一组并列资料转换为串列输出，再经传输器使输出的资料振幅放大，最后将资料传输至耦合的电极板上。
- According to the requirement of controlling the unity power factor rectifier, a novel method , a phase locked loop (PLL), is used to track the phase of fundamental voltage. 针对单位功率因数整流器的控制要求,提出了一种利用锁相环(PLL)来检测基波电压相位,控制整流器交流侧电流与交流侧基波电压同相位的控制策略。
- The frequency and phase lock loop has been applied for the carrier recovery of VSB transmission system in high definition TV. 目前，锁频锁相环在高清晰度电视VSB传输系统载波恢复中得到了应用。
- Several blocks such as ELST, CRC coder/decoder, Bit synchronousdigital phaselocked loop and jitter attenuate digital phase locked loop aredescribed in detail. 论文对作者所设计实现的部分模块作了较为详细的介绍，包括弹性存储器的设计和CRC编解码的设计以及位同步数字锁相环和抖动衰减锁相环的设计。
- The signal processing circuses, including the low-noise pre-amplifier, the filter and the phase lock loop(PLL) demodulation were designed. 分析并研制了系统的信号调理电路，其中包括低噪声前置放大、滤波、锁相环解调。
