NDLI: Automatic within-pair-skew compensation for 6.25 Gbps differential links using wide-bandwidth delay units

Content Provider	IEEE Xplore Digital Library
Author	Yuxiang Zheng Jiang Li Jin Liu Qian Yu
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. Eng., Texas Univ., Richardson, TX (Yuxiang Zheng; Jiang Li; Jin Liu; Qian Yu)
Abstract	This paper presents an automatic on-chip skew compensation scheme for within-pair-skew (WPS) in differential high-speed links. The skew compensation is achieved by cascading a series of wide-bandwidth delay cells to obtain constant group delay over the signal bandwidth. A continuous-time correlation circuit with current-mode logic XOR gate followed by a RC low-pass filter is proposed for skew detection. The effects of WPS and the proposed skew compensation scheme have been studied for various time skew and channel attenuation values. Simulation results show that the proposed skew compensation circuits can successfully restore the signal quality close to the condition without WPS, even when the signal with WPS has completely closed eyes
Sponsorship	The Inst. of Electr. and Electron. Eng., Inc. Circuits and Syst. Soc. (IEEE CASS)
Starting Page	4
Ending Page	2124
File Size	3418245
Page Count	2121
File Format	PDF
ISBN	0780393899
DOI	10.1109/ISCAS.2006.1693036
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-05-21
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delay Costs Bandwidth Cable TV Communication cables Low pass filters Connectors Attenuation Circuit simulation Signal restoration
Content Type	Text
Resource Type	Article

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