Open Access Journal

ISSN : 2394 - 6849 (Online)

International Journal of Engineering Research in Electronics and Communication Engineering(IJERECE)

Monthly Journal for Electronics and Communication Engineering

Open Access Journal

International Journal of Engineering Research in Electronics and Communication Engineering(IJERECE)

Monthly Journal for Electronics and Communication Engineering

ISSN : 2394-6849 (Online)

Digital PLL as Frequency Synthesizer

Author : Pauline John 1 Resmin Serah Thomas 2 S Shruthi 3 Steffy Elezabeth Sam 4 Binu C Pillai 5

Date of Publication :7th September 2015

Abstract: The paper describes a digital PLL circuit design as frequency synthesizer and its implementation using MULTISIM, to meet the increasing needs of high speed operation. It includes a Phase-Frequency Detector, a Loop filter, a Voltage Controlled Oscillator and a Divide by N Counter. The main aim is to decrease the power dissipation as compared with the conventional PLL. It ensures better stability, a shorter locking time and as a result, high accuracy as well as a lower sensitivity to power supply variations.

Reference :

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    [3]. M. Hagiwara practical phase locked loop frequency synthesizer, 1995 :sougoudenshi press.

    [4]. L.kyoohyun, et.al., a low-noise phase-lock loop design by loop bandwidth optimization, ieee, journal of solid-state circuits, 2000, 35 :807-815

    [5] q.huang and r.rogenmoser, speed optimization ofedge- triggered cmos circuits for ggahertz single phase clocks.ieee, journal of solid-state circuits, 1996, 31


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