Low-power, high-speed transceivers for network-on-chip communication

  • Authors:
  • Daniël Schinkel;Eisse Mensink;Eric A. M. Klumperink;Ed van Tuijl;Bram Nauta

  • Affiliations:
  • Axiom-IC B.V., Enschede, The Netherlands;Bruco, Borne, The Netherlands;IC Design Group, University of Twente, Enschede, The Netherlands;University of Twente, Enschede, The Netherlands and Axiom IC B.V., Enschede, The Netherlands;IC Design Group, University of Twente, Enschede, The Netherlands

  • Venue:
  • IEEE Transactions on Very Large Scale Integration (VLSI) Systems
  • Year:
  • 2009

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Abstract

Networks on chips (NoCs) are becoming popular as they provide a solution for the interconnection problems on large integrated circuits (ICs). But even in a NoC, link-power can become unacceptably high and data rates are limited when conventional data transceivers are used. In this paper, we present a low-power, high-speed source-synchronous link transceiver which enables a factor 3.3 reduction in link power together with an 80% increase in data-rate. A low-swing capacitive pre-emphasis transmitter in combination with a double-tail sense-amplifier enable speeds in excess of 9 Gb/s over a 2 mm twisted differential interconnect, while consuming only 130 fJ/transition without the need for an additional supply. Multiple transceivers can be connected back-to-back to create a source-synchronous transceiver-chain with a wave-pipelined clock, operating with 6σ offset reliability at 5 Gb/s.