A 7-Bit 7-GHz Multiphase Interpolator-Based DPC for CDR Applications

Autor:	Meysam M. Khanghah, Khosrov D. Sadeghipour, Denis Kelly, Cleitus Antony, Peter Ossieur, Paul D. Townsend
Rok vydání:	2022
Předmět:	Hardware and Architecture Phase interpolator (PI) Clock and data recovery (CDR) Electrical and Electronic Engineering Digital to phase converter (DPC) Wireline and optical communication
Zdroj:	IEEE Transactions on Circuits and Systems I: Regular Papers. 69:3976-3988
ISSN:	1558-0806 1549-8328
Popis:	This paper presents a 7-bit digital to phase converter (DPC) for high speed clock and data recovery (CDR) applications which is capable of generating multi-phase clocks at 7-GHz frequency. Fabricated in a standard 65-nm CMOS technology, the design introduces a modified phase interpolator (PI) and a quadrature phase corrector (QPC) to reduce the effect of the circuit imperfections on the DPC's resolution and linearity. Employing a 14-GHz quadrature reference clock, the DPC achieves DNL/INL of 0.7/6 LSB respectively while consuming 40.5 mW power from 1.05 V supply.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b17bec0df006046cbaf3ac7a51eccdd https://doi.org/10.1109/tcsi.2022.3191229 Zobrazit plný text záznamu