LXT9763
Fast Ethernet 10/100 Hex Transceiver with Full MII
Datasheet
The LXT9763 is a six-port PHY Fast Ethernet Transceiver that supports IEEE 802.3 physical
layer applications at both 10 and 100 Mbps. The mixed-signal adaptive equalization and clock
recovery with proprietary Optimal Signal Processing (OSP™) architecture improves SNR 3 dB
over ideal analog filters. All six network ports provide a combination twisted-pair (TP) or
pseudo-ECL (PECL) interface for a 10/100BASE-TX or 100BASE-FX connection. The
LXT9763 supports both half- and full-duplex operation at 10 and 100 Mbps.
A fully independent Media Independent Interface (MII) for each port provides maximum
control for switch and multi-port adapter applications.
In addition to an expanded set of MDIO registers, the LXT9763 provides three discrete LED
driver outputs for each port. The LXT9763 requires only a single 3.3V power supply.
Applications
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100BASE-T, 10/100-TX, or 100BASE-FX
Switches and multi-port NICs.
Product Features
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Six independent IEEE 802.3-compliant
10BASE-T or 100BASE-TX ports with
integrated filters.
Proprietary Optimal Signal Processing™
(OSP™) architecture improves SNR by 3
dB over ideal analog filters.
Baseline wander correction for improved
100BASE-TX performance.
100BASE-FX fiber-optic capability on all
ports.
Supports both auto-negotiation and legacy
systems without auto-negotiation
capability.
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JTAG boundary scan.
Six MII ports for independent PHY port
operation.
Configurable via MDIO port or external
control pins.
Maskable interrupts.
Very low power 3.3V operation
(380 mW per channel, typical).
208-pin PQFP (0-70
o
C ambient
temperature range).
As of January 15, 2001, this document replaces the Level One document
LXT9763 — Fast Ethernet 10/100 Hex Transceiver with Full MII.
Order Number:
249110-001
January 2001
INTEL [ INTEL CORPORATION ]
