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

Author

Nubling, R.B. ; Yu, James ; Wang, Keh-Chung ; Asbeck, Peter M. ; Sheng, Neng-Haung ; Chang, Mau-Chung F. ; Pierson, R.L. ; Sullivan, G.J. ; McDonald, Mark A. ; Price, A.J. ; Chen, A.D.M.

Author_Institution

Rockwell Int. Sci. Center, Thousand Oaks, CA, USA

Volume

26

Issue

10

fYear

1991

fDate

10/1/1991 12:00:00 AM

Firstpage

1354

Lastpage

1361

Abstract

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

Keywords

III-V semiconductors; aluminium compounds; bipolar integrated circuits; gallium arsenide; heterojunction bipolar transistors; integrated optoelectronics; multiplexing equipment; optical communication equipment; 1:8 demultiplexer; 8:1 multiplexer; AlGaAs-GaAs; ECL compatibility; HBTs; bi-level current mode logic; built-in decision circuit; clock recovery circuitry; data framing; heterojunction bipolar transistors; lightwave communications; resettable timing; Bipolar transistors; Circuit synthesis; Circuit testing; Clocks; Gallium arsenide; Heterojunction bipolar transistors; Latches; Logic circuits; Multiplexing; Timing;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.90085

Filename

90085