Since that time, the electronic phase-locked loop principle has been extended to other applications. For example, radio telemetry data from satellites used narrow-band, phase-locked loop receivers to recover low-level signals in the presence of noise. Other applications now include AM and FM demo...
鎖相環 Phase-Locked Loop 一個鎖相環(PLL)是一個設計用於同步板子時脈與外部的時脈訊號的電路。鎖相環電路會比較外部訊號與電壓控制的石英震盪器(VCXO)之間的相位,接著會去修正震盪器的時脈訊號去與參考訊號的相位之間吻合。因此,訊號之間將會精密的同相。 當在處理訊號擷取時,由於鎖相環會使得多個裝置共享一...
(CO). You will find no formulas or other complex math within this tutorial. I decided to keep it simple. The Phase Locked Loop method of frequency synthesis is now the most commonly used method of producing high frequency oscillations in modern communications equipment. There would not be a ...
[4] Su, Pin-En, and Sudhakar Pamarti. "Fractional-$ N $ Phase-LockedLoop-Based Frequency Synthesis: A Tutorial." IEEE Transactions on Circuits and Systems II: Express Briefs 56.12 (2009): 881-885. [5] B. Razavi, Design of CMOS phase-locked loops: from circuit level to architecture le...
Charge-Pump Phase-Locked LoopA TutorialPart IIJeffrey S. Pattavina
[5] D. H. Wolaver, Phase-Locked Loop Circuit Design, Prentice-Hall, 1991. ISBN 0-1366-2743-9. Another excellent book covering PLL design. [6] S. Haykin, An Introduction to Analog and Digital Communications, John Wiley and Sons, 1989. ISBN 0-471-85978-8. Covers distortionless transmiss...
It is the purpose of this survey paper to present a self-contained discussion of cycle slips in phase-locked loop avoiding advanced mathematical tools. Based on the results of an extensive experimental study we explain the underlying principle of the complex interaction between nonlinearity and noise...
In this chapter we describe an important electronic circuit, the phase-locked loop (PLL). We first investigate the circuit's dynamics without and with random perturbations, but in the absence of external forcing. Then we analyze the response of the circuit to noisy external signals, and we des...
Designing and debugging a phase-locked loop (PLL) circuit can be complicated, unless engineers have a deep understanding of PLL theory and a logical development process. This article presents a simpli
Used to synchronize the phase of two signals, the phase-locked loop (PLL) is employed in a wide array of electronics, including microprocessors and communications devices such as radios, televisions, and mobile phones. A PLL consists of a phase detector, a low-pass filter, a variable ...