A low-power 1.6-GHz phase-locked loop (PLL) based on a novel supply-regulated voltage-controlled oscillator (SR-VCO) including an active-loop filter (ALF) is realized. In this PLL, an active RC filter is combined with SR-VCO, achieving the advantages of ALF PLL without penalties in power consumption or phase noises. The PLL has measured rms jitter of 4.82 ps, and its core consumes 990 μW from 1...

A phase-locked loop (PLL) angular modulator scheme has been proposed which has the characteristics of wideband modulation frequency response. The modulator design is independent of the PLL closed-loop transfer function H(s), thereby allowing independent optimization of the loop's parameters as well as the modulator's parameters. A phase modulator implementing the proposed scheme was built to ph...

The analysis and design of the phase-locked loop (PLL) system is presented for the phase tracking system of the single phase utility interface inverters Phase-locked loops (PLL) are widely used in power electronics equipment connected to the mains. The use of a square wave voltage-controlled oscillator instead of a sinusoidal one eliminates one multiplier, resulting in a simple PLL algorithm, s...

The designing of charge pump with high gain OpAmp is a challenging task for getting faithful response .Design of high performance phase locked loop require ,a design of high performance charge pump .We have designed a operational amplifier for reducing the error caused by high speed glitch in a transistor and mismatch currents . A separate Op-Amp has designed in 180 nm CMOS technology by CADENC...

Abstract Wideband hybrid frequency synthesizer with phase-locked loop (PLL) and high-speed direct-to-analog converter (DAC) is presented. The use of special DAC operating modes allows to expand the generating band. Presented also provides a low phase noise due using RF mixer in PLL feedback.

This report summarizes a software de…ned phase locked loop and its connection to standard second-order loop design parameter for a integrating VCO and DDFS frequency synthesizer. 1 Introduction Phase locked loops (PLLs) have been used since the early development of radio. Critical paper collections [1] and books [2] cover the subject matter, which includes nonlinear feedback and stochastic di¤e...

Delay-locked loop (DLL) and phase-locked loop (PLL) designs based upon self-biased techniques are presented. The DLL and PLL designs achieve process technology independence, fixed damping factor, fixed bandwidth to operating frequency ratio, broad frequency range, input phase offset cancellation, and, most importantly, low input tracking jitter. Both the damping factor and the bandwidth to oper...

A 1.575GHz phase-locked loop (PLL) using a bulk acoustic wave resonator (FBAR) based VCO is presented. Closein phase noise is suppressed by the loop, while high-offset noise is suppressed by the extremely high Q (>2000) VCO. This technique results in a 750μW PLL with phase noise of -82 and -138dBc/Hz at 1kHz and 1MHz offset, respectively. A temperature-compensated FBAR stack is described, allow...

Design and simulation of Digital PLL has been illustrated in this paper. The Digital PLL is given signal of 400 MHz to 900 MHz in the UNII (Unlicensed National Information Infrastructure) lower band which is used by IEEE 802.11(a). All the Digital PLL blocks are designed and simulated using Simulink. It is verified that Digital PLL is stable with a phase margin of 91.1 degree which satisfy the ...

In this paper, we present a 2.2-GHz low jitter PLL based on sub-sampling. It uses a phasedetector/charge-pump (PD/CP) that sub-samples the VCO output with the reference clock. In contrast to what happens in a classical PLL, the PD/CP noise is not multiplied by N in this sub-sampling PLL. Moreover, no frequency divider is needed in the locked state and hence divider noise and power can be elimin...