High-speed 8:1 multiplexer and 1:8 demultiplexer implemented with AlGaAs/GaAs HBTs

High-speed 8:1 multiplexer and 1:8 demultiplexer implemented with AlGaAs/GaAs HBTs

An 8:1 multiplexer (MUX) and 1:8 demultiplexer (DMUX) implemented with AlGaAs/GaAs heterojunction bipolar transistors are described. The circuits were designed for lightwave communications, and were demonstrated to operate at data rates above 6 Gb/s. These are among the fastest 8-b MUX-DMUX circuits...

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Veröffentlicht in:IEEE journal of solid-state circuits 1991-10, Vol.26 (10), p.1354-1361
Hauptverfasser: Nubling, R.B., Yu, J., Wang, K.-C., Asbeck, P.M., Sheng, N.-H., Chang, M.-C.F., Pierson, R.L., Sullivan, G.J., McDonald, M.A., Price, A.J., Chen, A.D.M.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Bipolar transistors
Circuit synthesis
Circuit testing
Clocks
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Gallium arsenide
Heterojunction bipolar transistors
Latches
Logic circuits
Multiplexing
Timing
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Zusammenfassung:An 8:1 multiplexer (MUX) and 1:8 demultiplexer (DMUX) implemented with AlGaAs/GaAs heterojunction bipolar transistors are described. The circuits were designed for lightwave communications, and were demonstrated to operate at data rates above 6 Gb/s. These are among the fastest 8-b MUX-DMUX circuits ever reported. Each contains about 600 transistors and consumes about 1.5 W. The pair provides features such as resettable timing, data framing, and clock recovery circuitry, and a built-in decision circuit on the DMUX. Emitter-coupled logic (ECL) compatible input/output (1/O) signals are available. The circuits were implemented with bi-level current mode logic (CML) and require a -5.2-V power supply and a +1-V bias for ECL compatibility.< >
ISSN:0018-9200
1558-173X
DOI:10.1109/4.90085