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Data Sheet July 2000
LU3X54FTL QUAD-FET for 10Base-T/100Base-TX/FX
Introduction
Configuration
The LU3X54FTL is a four-channel, single-chip complete transceiver designed specifically for dual-speed 10Base-T, 100Base-TX, and 100Base-FX repeaters and switches. It supports simultaneous operation in three separate IEEE standard modes: 10Base-T, 100Base-TX, and 100Base-FX. The LU3X54FTL provides a 3.3 V or 5.0 V MII interface logic level. Each channel implements:
s s s s s s
Autopolarity detection and correction Adjustable squelch level for extended line length capability (two levels) Interfaces with IEEE 802.