O V ERVI EW

®

Phone: 949-450-8700

Fax: 949-450-8710

E-mail: info@broadcom.com

Web: www.broadcom.com

BROADCOM CORPORATION

16215 Alton Parkway, P.O. Box 57013

Irvine, California 92619-7013

© 2004 by BROADCOM CORPORATION. All rights reserved.

5222-PB05-R

07/01/04

or its subsidiaries in the United States and certain other countries. All other trademarks mentioned are the

property of their respective owners.

Lowest-Power Fast Ethernet PHY

With a power dissipation of less than 195 mW per port, the BCM5222 is

the industry’s lowest-power Fast Ethernet PHY. In addition, the

BCM5222 has several intelligent power-down states that conserve

power, yet allow products based on it to automatically turn on when

needed.

The BCM5222 includes a unique Intelligent Power-Management feature

that powers down the device if energy is not detected on the cable. The

energy detect feature is especially useful for portable and power-

sensitive applications, as the BCM5222 draws virtually no energy if the

cable is not plugged in and the client is not connected to the network.

This results in noticeably extended battery life for portable applications,

and increases product reliability due to decreased power dissipation. For

lowest power consumption, the BCM5222 can be put in a power-off state

(<2.0 mW).

Network Tolerance

The BCM5222 includes features that simplify the installation and

maintenance of local area networks. One such feature is the HP Auto-

MDIX capability, which automatically detects and corrects crossed

cables. With HP Auto-MDIX, the installer does not need to know what

is on the other side of the network cable: the BCM5222 automatically

switches its transmit and receive circuitry to accommodate the link

partner’s polarity.

Cable-sourced electrostatic discharge (CESD) is a recently discovered

phenomenon that occurs when an electrically charged network cable is

plugged into a networked product, an issue becoming more prevalent

with recent cable installations. The BCM5222 has been designed and

tested to withstand over 9 KV of CESD, which unlike other transceivers,

prevents the device from being destroyed in a CESD event.

DSP-Based PHY Technology

The BCM5222 builds on Broadcom’s proven DSP PHY design and full

custom circuit design techniques to create a highly integrated and robust

physical layer solution. DSP techniques allow the BCM5222 to achieve

high interoperability and to exhibit robust performance across

temperature (-40 to 85C°), voltage, and process variations. Broadcom’s

DSP-based, Digi-PHY™ technology has been proven in the shipment of

over 450,000,000 Fast Ethernet ports. Broadcom’s superior quality has

resulted in a failure rate well under 10 PPM.

Applications

• IP Phones

• Backplane Bus Communication

• Embedded Telecom

• Print Servers

5

4

4

TXD[1:2]

TXEN[1:2]

TXER[1:2]

TXC[1:2]

COL[1:2]

RXC[1:2]

CRS[1:2]

RXDV[1:2]

RXD[1:2]

RXER[1:2]

ACTLED#[1:2]

LNKLED#[1:2]

FDXLED#[1:2]

MODES

MDC

MDIO

XTALO

XTALI

RDAC

JTAG

SPDLED#[1:2]

TD+[1:2]

RD+[1:2]

Auto

MDIX

Multimode

Xmt DAC

Baseline

Wander

Correction

ADC

Digital

Adaptive

Equalizer

CRS/Link

Detection

Clock

Generator

Clock

Recovery

Bias

Generator

JTAG

Test Logic

Auto-Negotiation

/Link Integrity

MII

Registers

MII

Mgmt

Control

LED

Drivers

100BASE-X

PCS

10BASE-X

PCS