DP83891

Features:

Fully integrated 10BASE-T,100BASE-TX and 1000BASE-T capable
Single Quad TX-Transformer interface for all speeds
Fully compliant to IEEE 802.3u 100BASE-TX and IEEE 802.3z/ab 1000BASE-T specifications. Fully integrated andfullycompliantANSIX3.T12PMDphysicalsublayer hat includes adaptive equalization and Baseline Wan-der compensation.
Supports Auto-MDIX
IEEE 802.3u Auto-Negotiation and Parallel Detection
   Fullyauto-negotiatesbetween10,100and1000Mb/s full duplex and half duplex devices
3.3 V MAC interfaces:
   IEEE 802.3u MII
   IEEE 802.3z GMII
LED support (Link, Speed, Activity, Duplex, Collision,Auto-Negotiation, TX and RX indications)
Management Register Set (MDIO and MDC)
Single 3.3 V power supply
   5 V tolerant I/Os
208-pin PQFP package

 

Application

10/100/1000 Mb/s capable node cards
Switches with 10/100/1000 Mb/s capable ports
High speed uplink ports (backbone)
High end workstations


Description

The DP83891 is the first fully integrated, feature rich Physi-calLayertransceiverwithintegrated PMDsublayerstosup-port 10BASE-T,100BASE-TX and 1000BASE-T Ethernet protocols. It operates on existing CAT5 cables which reduces deployment costs.

The DP83891 is designed for easy implementation of 10/100/1000 Mb/s Ethernet LANs. It interfaces directly to Twisted Pair media via an external standard Quad trans-former. The DP83891 connects to the MAC layer through the IEEE 802.3u Standard Media Independent Interface (MII) or the IEEE 802.3z Gigabit Media Independent Inter-face (GMII).