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General Description

The DP83847 is a full feature single Physical Layer device

with integrated PMD sublayers to support both 10BASE-T

and 100BASE-TX Ethernet protocols over Category 3 (10

Mb/s) or Category 5 unshielded twisted pair cables.

The DP83847 is designed for easy implementation of

10/100 Mb/s Ethernet home or office solutions. It interfaces

to Twisted Pair media via an external transformer. This

device interfaces directly to MAC devices through the IEEE

802.3u standard Media Independent Interface (MII) ensuring

interoperability between products from different vendors.

The DP83847 utilizes on chip Digital Signal Processing

(DSP) technology and digital Phase Lock Loops (PLLs) for

robust performance under all operating conditions,

enhanced noise immunity, and lower external component

count when compared to analog solutions.

Applications

LAN on Motherboard

Embedded Applications

Features

Low-power 3.3V, 0.18μm CMOS technology

Power consumption < 351mW (typical)

5V tolerant I/Os

5V/3.3V MAC interface

IEEE 802.3 ENDEC, 10BASE-T transceivers and filters

IEEE 802.3u PCS, 100BASE-TX transceivers and filters

IEEE 802.3 compliant Auto-Negotiation

Output edge rate control eliminates external filtering for

Transmit outputs

BaseLine Wander compensation

IEEE 802.3u MII (16 pins/port)

LED support (Link, Rx, Tx, Duplex, Speed, Collision)

Single register access for complete PHY status

10/100 Mb/s packet loopback BIST (Built in Self Test)

56-pin LLP package (9w) x (9l) x (.75h) mm