In this paper we describe a novel Phase-Locked Loop (PLL) design for clock management applications. Such PLLs should operate over a wide range of frequencies, have tight constraints on jitter, power consumption and acquisition time, while being dynamically programmable by software means. In addition to the conventional fine tuning loop, the PLL has a coarse tuning loop to control the operating ...

This paper investigates the design and performance of the PLL (Phase Locked Loop). The proposed PLL designed with PFD (Phase Frequency Detector), CP (Charge Pump), first order Low Pass Filter and CS-VCO (Current Starved-Voltage Control Oscillator), in this paper the designed PFD used for proposed PLL is free from dead zone. The VCO used for the designed PLL shows larger tuning range and high ga...

Phase Locked Loop (PLL) is a fundamental part of radio, wireless and telecommunication technology. The goal of this document is to review the theory, design and analysis of PLL circuits. PLL is a simple negative feedback architecture that allows economic multiplication of crystal frequencies by large variable numbers. By studying the loop components and their reaction to various noise sources, ...

Version 4, 1 April 2003 A methodology is presented for modeling the jitter in a Phase-Locked Loop (PLL) that is both accurate and efficient. The methodology begins by characterizing the noise behavior of the blocks that make up the PLL using transistor-level simulation. For each block, the jitter is extracted and provided as a parameter to behavioral models for inclusion in a high-level simulat...

One method to enable fast acquisition of a phase-locked loop (PLL) in spite of large frequency offsets and small PLL bandwidths is to use an additional AFC loop. A suitable frequency error detector (FED) for large frequency offsets is the well-known balanced quadricorrelator. This FED is shown to produce great pattern jitter if it is to work with digital modulated MQAM and MPSK signals (M > 2) ...

The most versatile application for digital phase locked loops is for clock generation and clock recovery in any complex computer architecture like a microprocessor or microcontroller, network processors. Digital Phase locked loops are commonly used to generate timing on chip clocks in high performance mixed signal analog and digital systems. Most of the systems employ digital PLL mainly for syn...

This paper considers the reference signal generation problem for multi-functional operation of single-phase dynamic voltage restorers. For this purpose, a quasi type-1 phase-locked loop (QT1-PLL) is proposed. The pre-loop filter part PLL composed frequency-fixed delayed cancellation method and two-stage all-pass filter. Thanks to nature, easy implement can provide rejection any measurement offs...

In this article, we develop the theory of a special type optoelectronic phase-locked loop (PLL). The output signal PLL is in electrical domain and its reference oscillator, typically mode-locked laser, operates optical domain. uses balanced microwave phase detector (BOMPD). order to model PLL, nonlinear characteristic function gain BOMPD are derived analytically. Using results analysis, an usin...

The performance of a modular multilevel converter (MMC) is highly related to the three-phase phase-locked loop (PLL). presence DC component, harmonic and negative sequence component results in poor dynamic steady-state PLL, such as fundamental frequency oscillations phase estimated by PLL. In order suppress influence parameters variation disturbance grid voltage, an improved PLL with moving ave...

Abstract This study focuses on stability of weak grid connected voltage source converter (WG‐VSC) in Low‐frequency mode (LFM) (around 1–10 Hz), which is dominated by interactions among phase‐locked loop (PLL), outer control and condition. In order to clearly reveal LFM mechanism WG‐VSC, a simple but effective PLL‐equivalent model has been proposed. First, generic small signal consisted PLL ‘out...