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A 155 Mb/s BiCMOS Multiplexer-Demultiplexer IC  

Lee, Sang-Hoon (경남대학교 전기전자공학부)
Kim, Seong-Jeen (경남대학교 전기전자공학부)
Abstract
This paper describes the design of a 155 Mb/s multiplexer-demultiplexer chip. This device for a 2.5 Gb/s SDH based transmission system is to interleave the parallel data of 51 Mb/s into 155 Mb/s serial data output, and is to deinterleave a serial input bit stream of 155 Mb/s into the parallel output of 51 Mb/s The input and output of the device are TTL compatible at the low-speed end, but 100K ECL compatible at the high-speed end The device has been fabricated with a 0.7${\mu}m$ BiCMOS gate array The fabricated chip shows the typical phase margin of 180 degrees and output data skew less than 470 ps at the high-speed end. And power dissipation is evaluated under 2.0W.
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