The factorial Delay Locked Loop: a solution to fulfill multistandard RF synthesizer requirements

This paper presents the study of a frequency synthesizer dedicated to multistandard wireless objects: the factorial delay locked loop (DLL). Feasibility of such a circuit has been already made, according to behavioral simulations, but no investigation was performed on the ability of the system to take into account all the requirements of multistandard frequency synthesizer, and particularly, the phase noise response of the system.