Title :
Analysis of Deskew Signaling Via Adaptive Timing
Author :
Wang, Shuo ; Wang, Lei
Author_Institution :
Univ. of Connecticut, Storrs, CT
fDate :
4/1/2009 12:00:00 AM
Abstract :
This paper presents an adaptive timing method for analysis of deskew signaling in high-performance integrated systems. The proposed approach models the practical deskew schemes as an adaptive system to study the performance limit of deskew signaling. We investigate the statistical properties of optimal deskew, which can be considered as the theoretical limit of deskew signaling. This approach also allows us to study the related energy efficiency issues in deskew schemes. We determine the bound on energy efficiency subject to the performance constraint on deskew signaling. Simulation results show that the performance of practical deskew schemes in a 90-nm process is 23.2% away from the optimal deskew scheme, and the gap of energy efficiency is 51% above the bound.
Keywords :
CMOS digital integrated circuits; adaptive systems; circuit noise; clocks; delay circuits; timing circuits; timing jitter; CMOS process; adaptive timing; clock networks; deskew signaling; energy efficiency; high-performance integrated systems; optimal deskew; statistical properties; timing circuits; timing noise; Energy efficiency; jitter; performance; skew; timing robustness;
Journal_Title :
Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on
DOI :
10.1109/TCAD.2009.2016135
