A 150 mW 8:1 MUX and a 170 mW 1:8 DEMUX for 2.4 Gb/s optical-fiber communication systems using n-AlGaAs/i-InGaAs HJFET's

Masahiro Fujii, Keiichi Numata, Tadashi Maeda, Masatoshi Tokushima, Shigeki Wada, Muneo Fukaishi, Masaoki Ishikawa

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An 8:1 multiplexer (MUX) and a 1:8 demultiplexer (DEMUX) for 2.4-Gb/s optical communication systems have been developed using 0.35-μm GaAs heterojunction field-effect transistors (FET's). To ensure timing margins, a new timing generator with latches and new clock buffers with cross-coupled inverters have been developed. These large-scale integrations (LSI's) operate at over 2.4 Gb/s with a power consumption of 150 mW (MUX) and 170 mW (DEMUX) at a supply voltage of 0.7 V, and at over 5 Gb/s with power consumption of 200 mW at a supply voltage of 0.8 V.

Original languageEnglish
Pages (from-to)43-46
Number of pages4
JournalIEEE Transactions on Very Large Scale Integration (VLSI) Systems
Issue number1
Publication statusPublished - 1998 Dec 1



  • Communication
  • High-performance
  • Low-power dissipation
  • Low-voltage
  • Optical

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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