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PRD-based global-mean-time signaling for high-speed chip-to-chip communications

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12 Author(s)
Tamura, H. ; Fujitsu Labs. Ltd., Atsugi, Japan ; Gotoh, K. ; Araki, H. ; Wakayama, S.
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A chip-to-chip signaling scheme employs partial response detection (PRD) combined with the zero-delay time delivery of a global timing reference, or global mean time (GMT). High-output-impedance drivers and higher termination resistances for signal transmission reduce driver power to the 10 mW range while maintaining a data rate of 500Mb/s. The resulting intersymbol interference (ISI) is eliminated by the PRD receivers, a type of auto-zero-comparator. Signal lines are segmented and pipelined by PRD buffers to limit the segment lengths to below Lmax=cT/2, where c is the effective velocity of signal propagation and T is the bit time. Segmentation reduces the driver power considerably.

Published in:

Solid-State Circuits Conference, 1998. Digest of Technical Papers. 1998 IEEE International

Date of Conference:

5-7 Feb. 1998