Title :
Behavioral Modeling of Delay-Locked Loops and its Application to Jitter Optimization in Ultra Wide-Band Impulse Radio Systems
Author :
Barajas, E. ; Cosculluela, R. ; Coutinho, D. ; Mateo, D. ; González, J.L. ; Cairó, I. ; Banda, S. ; Ikeda, M.
Author_Institution :
Dept. of Electron. Eng., Univ. Politecnica de Catalunya, Barcelona
Abstract :
This paper presents a behavioral model of a delay-locked loop (DLL) used to generate the timing signals in an integrated ultra wide-band (UWB) impulse radio (IR) system. The requirements of these timing signals in the context of UWB-IR systems are reviewed. The behavioral model includes a modeling of the various noise sources in the DLL that produce output jitter. The model is used to find the optimum loop filter capacitor value that minimizes output jitter. The accuracy of the behavioral model is validated by comparing the system level simulation results with transistor level simulations of the whole DLL
Keywords :
delay lock loops; integrated circuit modelling; jitter; timing circuits; ultra wideband communication; behavioral modeling; delay-locked loops; jitter optimization; optimum loop filter capacitor value; system level simulation; timing signals; transistor level simulation; ultra wideband impulse radio systems; Degradation; Delay; Jitter; Matched filters; Pulse modulation; Research and development; Signal generators; Space vector pulse width modulation; Timing; Ultra wideband technology;
Conference_Titel :
Design, Automation & Test in Europe Conference & Exhibition, 2007. DATE '07
Conference_Location :
Nice
Print_ISBN :
978-3-9810801-2-4
DOI :
10.1109/DATE.2007.364499
