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

© 2003 by BROADCOM CORPORATION. All rights reserved.

5464S-PB07-R

12/10/03

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

property of their respective owners.

The BCM5464S consists of four complete 10/100/1000BASE-T Gigabit

Ethernet transceivers integrated on a single monolithic CMOS chip, and

Ethernet PHYs. The BCM5464S is optimized for low-power and small

footprint size to enable high port density applications. The BCM5464S

enables a new class of cost effective Gigabit Ethernet equipment by

lowering system cost and reducing power dissipation by nearly 25%,

driving the delivery of Gigabit bandwidth to the desktop.

The BCM5464S digital signal processor based architecture and

advanced power management techniques combine to achieve robust and

low-power operation over the existing Category 5 twisted-pair wiring.

The BCM5464S architecture not only meets the requirements of IEEE’s

802.3, 802.3u, and 802.3ab, but maintains the industry’s highest level of

margin over IEEE requirements for echo, NEXT, and FEXT. Low-

power is key to implementing high-density Gigabit switches, and the

BCM5464S has the lowest power in the industry at less than 750 mW per

port. In addition, the BCM5464S has extremely low EMI emissions,

which reduces the design constraints required to meet EMI radiation

specifications.

The BCM5464S supports GMII, RGMII, SGMII, and SerDes MAC

interfaces. A unique feature of the BCM5464S is its ability to support

both copper and fiber networks, with an integrated SerDes PHY interface

that can connect directly to a fiber-optic module. Switching between

copper and fiber media can be accomplished either automatically or

through software control. The BCM5464S monitors copper link and

fiber signal detect status, and automatically swaps either copper traffic or

fiber traffic to the MAC/switch based on priorities set at initialization.

This device is another member of Broadcom’s 0.13-µm Gigabit copper

PHY family, joining the BCM5404, BCM5414, BCM5421, BCM5421S,

BCM5424, and BCM5434. The 0.13-µm process is the optimal process

that offers the best performance, lowest cost, and lowest power for

Gigabit copper solutions. Devices based on the 0.13-µm process offer an

excellent long term cost curve, enabling better cost reduction over time

compared to older technologies without having to redesign or requalify

a new part.

Each port of the BCM5464S is fully independent and has individual

interface, control and status registers, and incorporates a number of

advanced features. A link quality indicator LED gives installers an

instant visual indication if there are any problems with the wiring plant

supporting operation at the preferred speed. This includes physical

wiring defects that the BCM5464S cannot automatically correct for,

channel conditions such as excessive cable length and return loss,

crosstalk, echo, and noise. Broadcom’s cable analyzer software can be

used with the device to provide remote management of the cable and a

first level of diagnostics and fault isolation.

The BCM5464S also has ESD tolerance well above typical industry

standards. This prevents ESD damage not only during manufacturing but

during CESD events in the field. The CESD is an ESD event that occurs

when an electrically charged network cable is plugged into a network

port, which is an issue becoming more prevalent with recent cable

installations. The BCM5464 can tolerate over 4 kV of CESD.

{1:4}*

{1:2}*

*{1:4} Refers to the four separate Gigabit transceivers in the BCM5464S

{1:4}*

{1:4}*

{1:4}*

{1:4}*

{1:4}*

{1:4}*

{1:4}*

{1:4}*

{1:4}*

{1:4}*

{1:4}*

SGIN±

SCLK±

SGOUT±

{1:4}*

SGIN

SGOUT

TRD

XTALI

XTALO

RDAC

16

TX DAC

Gain

Automatic

Control

PGA

ADC

Auto-

Negotiation

Clock

Generator

Bias

Generator

FFE

Echo

Cannceller

XTALK

Cannceller

X3

DFE/

Trellis

Decoder

Timing &

Phase

Decoder

MII

Registers

MII

MGMT

Control

Symbol

Encoder

MUX

MUX

SERDES/

SGMII

Symbol

Decoder/

Aligner

2

2

2

2

2

2

2

2

16

16

TXD

TX_EN

TX_ER

GTX_CLK

TX_CLK

COL

CRS

RX_CLK

RX_DV

RX_ER

RXD[7:0]

MDC

MDIO

NTR

MODES