A Transceiver for High-Speed Global On-Chip Data Communication

Daniel Schinkel, Eisse Mensink, Eric Klumperink, Ed van Tuijl, Bram Nauta

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    Abstract

    Global on-chip data communication is becoming a concern as the gap between transistor speed and interconnect bandwidth increases with CMOS process scaling. In this paper we show how a special form of equalization, pulse-width pre-emphasis, can significantly increase the data rate for a given length of uninterrupted interconnect, especially if used in combination with lowohmic termination and twisted differential interconnects. To validate these techniques, a bus-transceiver test chip in a 0.13μm, 1.2V, 6M copper CMOS process has been designed. The chip uses 10mm long differential interconnects with wire widths and spacing of only 0.4μm. With transceivers operating in conventional mode, the chip achieves only 0.55Gb/s/ch. The achievable data rate increases to 3Gb/s/ch (consuming 2pJ/bit) if pulse-width pre-emphasis and low-ohmic termination are turned on.
    Original languageEnglish
    Title of host publication16th Workshop on Circuits, Systems and Signal Processing, ProRISC 2005
    Place of PublicationUtrecht
    PublisherSTW
    Pages279-283
    Number of pages5
    ISBN (Print)90-73461-50-2
    Publication statusPublished - Nov 2005
    Event16th Workshop on Circuits, Systems and Signal Processing, ProRISC 2005 - Veldhoven, Netherlands
    Duration: 17 Nov 200518 Nov 2005
    Conference number: 16

    Workshop

    Workshop16th Workshop on Circuits, Systems and Signal Processing, ProRISC 2005
    CountryNetherlands
    CityVeldhoven
    Period17/11/0518/11/05

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    Keywords

    • Transceivers
    • Data bus
    • Interconnect
    • Pulse-width
    • On-chip dommunication
    • Intersymbol interference (ISI)
    • Pre-emphasis

    Cite this

    Schinkel, D., Mensink, E., Klumperink, E., van Tuijl, E., & Nauta, B. (2005). A Transceiver for High-Speed Global On-Chip Data Communication. In 16th Workshop on Circuits, Systems and Signal Processing, ProRISC 2005 (pp. 279-283). Utrecht: STW.