BCM5241 10/100BASE-TX SINGLE-CHANNEL TRANSCEIVER FEATURES SUMMARY OF BENEFITS 10BASE-T/100BASE-TX/100BASE-EFX IEEE 802.3u fast DSP-based architecture to ensure performance over Ethernet transceiver temperature, voltage and process variation. - Field proven in over one billion Fast Ethernet ports. HP auto-MDIX - Superior ability to link and lower BER in marginal cable plants, relative to analog solutions. Advanced cable diagnostics (CableChecker) - Greater ATE coverage results in fewer field failures. Robust CESD tolerance Improved ease of use and installation, reduced support cost. Operation from a single 3.3V or 2.5V supply source - Straight-through or cross-over cables accommodated independent of installation. Unique energy detect circuit - Advanced cable diagnostic features to enable remote monitoring and debug of cabling infrastructure. Low-power mode - Resistance to CESD to reduce product destruction and Super isolate mode product returns. Cable length up to 160 meters Flexible power supply options. MII and 7-wire serial interface Low power and intelligent power management. - Increased active working time. Power dissipation: <170 mW - Prolonged battery life in active standby. - Increased reliability. Control of network interaction on start up. BCM5241 System Diagram Media RJ-45 MII Access CPU/ASIC Connector BCM5241 Controller Single-Channel (MAC) PHY Transceiver Magnetics ModuleOVERVIEW BCM5241 Multimode TD 10BASE-T TXD 3:0 Xmt DAC PCS 4 TXEN TXC Baseline Auto Wander COL MDIX Correction RXC 10BASE-X CRS PCS Digital RXDV RD ADC Adaptive RXER Equalizer RXD 3:0 4 Auto-Negotiation/ Link Intergrity CRS/Link Detection LED1 LED Drivers LED2 XTALI/REF CLK Clock Clock XTALO Generator Recovery MII MDC MII MGMT Registers Bias MDIO RDAC Control Generator Modes BCM5241 Reference Design DSP-Based PHY Technology Cable-sourced electrostatic discharge (CESD) is a recently discovered phenomenon that occurs when an electrically charged network cable is The BCM5241 builds on Broadcom s proven DSP PHY design and full plugged into a networked product. This is an issue becoming more custom circuit design techniques to create a highly-integrated and robust prevalent with recent cable installations. The BCM5241 has been physical layer solution. DSP techniques allow the BCM5241 to achieve designed and tested to withstand over 2KV of CESD, which unlike other high interoperability and to exhibit robust performance across voltage transceivers, prevents the device from being destroyed in a CESD event. (+/-10%), temperature, and process variations. Broadcom s DSP-based, Broad- technology has been proven in the shipment of over one Low Power Fast Ethernet PHY billion Fast Ethernet ports. Due to the significantly greater test coverage The BCM5241 has an extremely low power dissipation of less than 170 for a DSP based PHY, Broadcom s PHYs exhibit superior quality with a mW. It features an integrated voltage regulator, and can be supplied by failure rate of well under 10 PPM. either 2.5V or 3.3V power sources. The BCM5241 employs several Network Tolerance intelligent power-down states that conserve power, while allowing BCM5241-based products to automatically turn on when needed. The BCM5241 includes features that simplify the installation and maintenance of local area networks. A simple help tool is the The BCM5241 includes a unique Intelligent Power-Management feature CableChecker, which enables basic cable issues to be resolved without that powers down the device if energy is not detected on the cable. This contacting technical support. These issues include not plugging the cable feature is especially useful for portable and power-sensitive applications. correctly at one or both ends, identifying if the cable is damaged, or The BCM5241 can be set to periodically wake up at a user-defined determining if the remote system is powered up. interval, allowing the device to initiate keep-alive network traffic. For Another network tolerance feature is the HP Auto-MDIX capability, lowest power consumption, the BCM5241 can be put in a power-off state which automatically detects and corrects crossed cables. With HP Auto- (<170 mW). MDIX, the installer does not need to know what is on the other end of the Applications network cable. The BCM5241 automatically switches its transmit and Printers, multi-function peripherals LAN on motherboard receive circuitry to accommodate the link partners polarity. Game consoles IP Phones DTVs Wireless access points Broadcom , the pulse logo, Connecting everything , and the Connecting everything logo are among the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries and/or the EU. Any other trademarks or trade names mentioned are the property of their respective owners. BROADCOM CORPORATION Phone: 949-450-8700 16215 Alton Parkway, P.O. Box 57013 Fax: 949-450-8710 Irvine, California 92619-7013 E-mail: info broadcom.com Web: www.broadcom.com 2006 by BROADCOM CORPORATION. All rights reserved. 5241-PB01-R 04/19/06