Description
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.

Product Features
*Six independent IEEE 802.3-compliant 10BASE-T or 100BASE-TX ports with integrated filters.
*Proprietary Optimal Signal Processing™ (OSP™) architecture improves SNR by 3dB 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.
*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 oC ambient temperature range).

Applications
*100BASE-T, 10/100-TX, or 100BASE-FX Switches and multi-port NICs.

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