Results 261 to 270 of about 77,045 (305)

A survey of digital phase-locked loops

Proceedings of the IEEE, 1981
The purpose of this paper is to present a systematic survey of the theoretical/experimental work accomplished in the area of digital phase-locked loops (DPLL's) during the period of 1960 to 1980. The DPLL represents the heart of the Building blocks required in the implementation of coherent (all digital) communications and tracking receivers.
W.C. Lindsey, null Chak Ming Chie
openaire   +1 more source

Phase-domain all-digital phase-locked loop

IEEE Transactions on Circuits and Systems II: Express Briefs, 2005
A fully digital frequency synthesizer for RF wireless applications has recently been proposed. At its foundation lies a digitally controlled oscillator that deliberately avoids any analog tuning controls. When implemented in a digital deep-submicrometer CMOS process, the proposed architecture appears more advantageous over conventional charge-pump ...
R.B. Staszewski, P.T. Balsara
openaire   +1 more source

A Digital BIST for Phase-Locked Loops

2008 IEEE International Symposium on Defect and Fault Tolerance of VLSI Systems, 2008
This paper presents a conceptual implementation of a jitter measurement circuit with several BIST (built-in self test) features for embedded phase-locked loops. We demonstrate a fully functional jitter measurement circuit capable of detecting cycle-to-cycle jitter.
Kevin Sliech, Martin Margala
openaire   +1 more source

Digital phase-locked loop with jitter bounded

IEEE Transactions on Circuits and Systems, 1989
A design of an all-digital phase-locked loop (DPLL) with direct frequency synthesis is proposed for generating signals that satisfy preimposed requirements on jitter over any given range of frequencies. Control of the jitter is obtained by means of a frequency-phase window comparator which compares the bit overflow/underflow of the direct synthesis ...
S.M. Walters, T. Troudet
openaire   +1 more source

Unbiased Finite-Memory Digital Phase-Locked Loop

IEEE Transactions on Circuits and Systems II: Express Briefs, 2016
Digital phase-locked loops (DPLLs) have been commonly used to estimate phase information. However, they exhibit poor performance or, occasionally, a divergence phenomenon, if noise information is incorrect or if there are quantization effects. To overcome the weaknesses of existing DPLLs, we propose a new DPLL with a finite-memory structure called the ...
You, S., Pak, J., Ahn, C., Shi, P., Lim, M.   +4 more
openaire   +2 more sources

Fractional-Order Digital Phase-Locked Loop

2007 14th IEEE International Conference on Electronics, Circuits and Systems, 2007
A fractional-order digital phase-locked loop (FODPLL) is proposed. The FODPLL model is developed by approximating a fractional-order digital controlled-oscillator (FODCO) with a finite dimensional discrete transfer function. The design of FODPLLs model is simplified where one only needs to design a FODCO.
openaire   +1 more source

Digital Phase Lock Loops

2006
Saleh R. Al-araji, Zahir M. Hussain, Mahmoud A. Al-qutayri   +2 more
  +5 more sources

A New DSP Digital Phase Locked Loop

IETE Journal of Research, 1993
A new type of digital signal processing type digital phase locked loop is presented. It consists of a second order DPLL and first order DPLL both of which possess an additional automatic-frequency-...
B N Biswas, D Mondal, P Pal, P Lahiri, D Mukhopadhyay   +4 more
openaire   +1 more source

On Optimum Digital Phase-Locked Loops

IEEE Transactions on Communications, 1968
This paper gives the design procedure of optimum digital filters for analog-digital phase-locked loops. The inputs considered are the step and ramp change in phase. The digital filters can easily be realized on the digital computer or otherwise. Design curves are given to choose proper noise bandwidth, sampling period, and loop parameters.
openaire   +1 more source

A digital loop filter for a Phase Locked Loop

2011 17th International Conference on Digital Signal Processing (DSP), 2011
Modern digital telecommunication and audio systems include a Digital Phase Locked Loop (D-PLL) in a form of a device or an algorithm. Wireless infrastructure, broadband wire-line networks and high end audio systems require very high performance PLLs.
openaire   +1 more source