Shumbler: a 155 Mb/s BiCMOS synchronous multiplexer chip for a broad-band customer premises network

Author

Gonzalez, José Luís Merino ; Sáenz, Fernando Ortiz ; Miranda, Gabriel Valencia

Author_Institution

Alcatel Stand. Electr., S.A., Madrid, Spain

Volume

26

Issue

9

fYear

1991

fDate

9/1/1991 12:00:00 AM

Firstpage

1270

Lastpage

1277

Abstract

The shumbler (shuffler/scrambler) is a circuit designed and fabricated to form part of a broadband customer premises network. The circuit is implemented in 1.2-μm BiCMOS double-metal technology. The circuit is bidirectional, and can perform the functions of scrambling and shuffling or descrambling and unshuffling by means of control signals to three integrated multiplexers. The shumbler also includes a programmable multiplexer that allows the selection of one out of the 16 output channels of the shuffler through a serial output for local system test purposes. The shumbler circuit interfaces emitter-coupled-logic (ECL) and transistor-transistor-logic (TTL) logic levels using a single power supply of -5 V, dissipating 1.5 W, and encapsulated in a 68-pin LCC package with a flat heat spreader which ensures a thermal resistivity of about 10°C/W

Keywords

BIMOS integrated circuits; broadband networks; digital communication systems; digital integrated circuits; frequency division multiplexing; multiplexing equipment; optical communication equipment; optical links; time division multiplexing; -5 V; 1.2 micron; 1.5 W; 155 Mbit/s; 68-pin LCC package; BiCMOS; TDM; WDM; broadband customer premises network; descrambling; double-metal technology; flat heat spreader; integrated multiplexers; programmable multiplexer; scrambling; shuffling; shumbler; single power supply; synchronous multiplexer chip; unshuffling; BiCMOS integrated circuits; Circuit testing; Conductivity; Integrated circuit technology; Logic circuits; Multiplexing; Packaging; Power supplies; System testing; Thermal resistance;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.84944

Filename

84944