TP112
100Base-TX/FX Converter
Feature
n
n
n
n
n
General Description
The TP112 is a single chip media converter for
100Base-TX to 100Base-FX. The TP112 support one
100Base-TX port over CAT5 twisted pair cable and one
ECL interface to connect with fiber module to apply in
100Base-TX/FX converter application. On the
100Base-TX side, The TP112 is directly connected to
external transformers
The chip performs data recovery, clock recovery,
adaptive equalization, auto negotiation, and baseline
wander correction function. The TP112 is compliant with
the IEEE 802.3u standard.
100Base-TX IEEE 802.3u compatible
Full and Half duplex with Auto-negotiation
Fully integrated adaptive equalizers
125MHz clock generator and clock recovery
Include transmit waveform shaping to reduce EMI and
filter
Include baseline wander correction
Support one TX interface and one Fiber module
interface(ECL interface).
Support transmit, receive/link, full duplex LED
Single 5 Voltage supply operation
128-pin PQFP
n
n
n
n
n
Typical Application
n
100Base-TX to 100Base-FX Converter
FX
Fiber Module
TP112
TX
1
TP112-DS-P02
Jan 5, 2000