The SMSC LAN83C183 is a highly integrated analog interface IC for twisted pair Ethernet applications. The LAN83C183 can be configured for either 100 Mbps (100BASE-TX or 100BASE-FX) or 10 Mbps (10BASE-T) Ethernet operation. The 100BASE-FX is packaged in a 64 TQFP package.
The LAN83C183 consists of a 4B5B/Manchester encoder/decoder, scrambler/descrambler, transmitter with wave shaping and output driver, twisted pair receiver with on chip equalizer and baseline wander correction, clock and data recovery, AutoNegotiation, controller interface (MII), and serial port (MI).
The addition of internal output waveshaping circuitry and on-chip filters eliminates the need for external filters normally required in 100BASE-TX and 10BASE-T applications.