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BCM5222
(R)
10/100BASE-TX DUAL-PORT DIGI-PHYTM TRANSCEIVER
FEATURES * Dual-port 10/100BASE-TX IEEE 802.3u Fast Ethernet SUMMARY OF BENEFITS * Low power and intelligent power management
* Increase active working time * Prolonge battery life in active standby * Increase reliability * Improved ease of use and installation, reduced support cost * Straight-through or cross-over cables accommodate independent of installation * Resistance to CESD prevent product destruction and product returns * Advanced cable diagnostic features enable remote monitoring and debugging of cabling infrastructure * DSP-based Digi-PHYTM architecture ensures performance over temperature, voltage, and process variation * Proven in over 450,000,000 Fast Ethernet ports * Provides ease of manufacturing with JTAG support
transceiver * Power consumption: <195 mW per port * Unique energy detection circuit to enable intelligent power management * HP auto-MDIX
* * * * * * * * * *
Robust CESD tolerance Cable length indication Cable noise level indication Cable length greater than 140 meters Well under 10 PPM defect ratio quality Industrial temperature range (-40 to 85C) MII/7-wire serial interface IEEE 1149.1 (JTAG) scan chain support MII management via serial port 100-pin PQFP and 100-pin fpBGA package
* Enables simplified system and board design with MAC
interface and packaging options
Backplane Bus Communication 10/100BASE-TX Application
Main Control Board Peripheral Board #1 BCM5228 BCM5222 BCM5222
Control Data
Peripheral Board #2
OVERVIEW
TD+[1:2] Auto MDIX
Multimode Xmt DAC Baseline Wander Correction Digital Adaptive Equalizer
4 10BASE-X PCS
TXD[1:2] TXEN[1:2] TXER[1:2] TXC[1:2] COL[1:2] RXC[1:2] CRS[1:2] RXDV[1:2] RXER[1:2] RXD[1:2] ACTLED#[1:2] LNKLED#[1:2] SPDLED#[1:2] FDXLED#[1:2] MODES
100BASE-X PCS
RD+[1:2]
ADC
4 CRS/Link Detection Auto-Negotiation /Link Integrity
LED Drivers
XTALO XTALI RDAC JTAG
5
Clock Generator Bias Generator JTAG Test Logic
Clock Recovery
MII Registers
MII Mgmt Control
MDC MDIO
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 powersensitive 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 AutoMDIX 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-PHYTM 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
Broadcom(R), the pulse logo, and Connecting everything(R) are trademarks of Broadcom Corporation and/ or its subsidiaries in the United States and certain other countries. All other trademarks mentioned are the property of their respective owners.
(R)
BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013
(c) 2004 by BROADCOM CORPORATION. All rights reserved. 5222-PB05-R 07/01/04
Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com

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