RJ-45 RJ-45 Transformer Transformer BCM5461 10/100/1000BASE-T GIGABIT COPPER TRANSCEIVER FEATURES SUMMARY OF BENEFITS Fully-integrated 10BASE-T/100BASE-TX/1000BASE-T Gigabit Simplifies system and board design. Ethernet transceiver - Reduced I/O pin requirements with RGMII (over 50%). - Clock timing can be adjusted to eliminate board trace delays GMII, RGMII, RTBI, and MII MAC Interface options required by the RGMII specification. On-chip low-voltage regulators Provides interoperability with IEEE standard devices operating at 10, 100, and 1000 Mbps at half- and full-duplex. Fully compliant with IEEE 802.3, 802.3u, and 802.3ab standards Lowers system BOM cost and simplifies system design. 0.13 CMOSlow power and cost Requires no airflow or heatsink. Low power - Less than 700 mW per port Provides compliance with PCI 2.2 and PC99/PC2000. - Wake on LAN support Eases system level debug. - Advanced power management Reduces system design constraints to meet EMI emissions standards. Trace matched output impedance Cable diagnostic function characterizes cable plant condition and Line-side loopback immediately indicates cabling issues. Low EMI emissions - Prevents erroneous equipment return due to bad cable plants. - Prevents manufacturing fall-out due to bad cable plants. Cable-plant diagnostic - Cable-plant analyzer function detects cable plant impairments High CESD tolerance prevents equipment damage and return. - Link quality indication LED Operates with larger packets for wider range of packet protocol - Automatic detection and correction of wiring pair swaps, pair skew, support and improved efficiency. and pair polarity - Automatic MDI/MDIX crossover at all speeds Ease of manufacturing with JTAG support, simplified power supply, and multiple MAC interfaces. Robust CESD tolerance Support for jumbo packets up to 9 KB IEEE 1149.1 (JTAG) boundary scan 128-pin MQFP, 117-pin BGA, and 100-pin FBGA packages Main Control Board BCM5461 Peripheral Board 1 BCM5645 Peripheral Board 2 24FE+2G Switch BCM5464 BCM5461 BCM5461 BCM5461 BCM5248 BCM5248 BCM5248 Octal Octal Octal 10/100 Mbps PHY 10/100 Mbps PHY 10/100 Mbps PHY Gigabit Backplane Communication 1000BASE-T Gigabit UplinkOVERVIEW BCM5461 TXD 7:0 TX EN Symbol TX ER Encoder TX DAC GTX CLK 16 TX CLK Gain XTALK Echo Automatic Canceller Canceller Control X3 COL TRD 3:0 + CRS DFE/ Symbol RX CLK PGA ADC FFE Trellis Decoder/ RX DV Decoder Aligner RX ER RXD 7:0 Timing & Phase Recovery Auto- Negotiation XTALI Clock XTALO Generator MDC MII MII MGMT MDIO Registers Bias RDAC 1:2 * Control INTR Generator Modes BCM5461 Reference Design Gigabit Ethernet transceiver. The BCM5461 is optimized for low power This device is another member of Broadcom s 0.13 Gigabit copper PHY and small footprint size to enable backplane and uplink applications. By family, joining the BCM5404, BCM5414, BCM5421, BCM5421S, lowering system cost and reducing power dissipation by nearly 30%, the BCM5424, BCM5434, BCM5464, and BCM5464S. The 0.13m process is BCM5461 enables a new class of cost-effective Gigabit Ethernet the optimal process that offers the best performance, lowest cost, and equipment, driving the delivery of Gigabit bandwidth to the desktop. lowest power for Gigabit copper solutions. Further, devices based on the 0.13 process offers an excellent long-term cost curve, enabling better cost The BCM5461s Digital Signal Processor based architecture and advanced reduction over time, compared to older technologies, without having to power management techniques combine to achieve robust and low power redesign or requalify a new part. operation over the existing CAT 5 twisted-pair wiring. The BCM5461 architecture not only meets the requirements of 802.3, 802.3u, and 802.3ab, The BCM5461 incorporates a number of advanced features. The link but maintains the industrys highest level of margin over IEEE quality indicator LED provides installers with immediate visual requirements for Echo, NEXT, and FEXT. Low power is a key factor in notification of any problems with the wiring plant supporting operation at implementing Gigabit small form factor NICs and uplinks and, at less than the desired speed. This includes physical wiring defects that the BCM5461 700 mW per port, the BCM5461 has the industry s lowest power. For NIC cannot automatically correct and channel conditions such as excessive applications, support for Wake on LAN enables compliance with PCI 2.2 cable length, and return loss, crosstalk, echo, and noise. Broadcoms cable and PC99/PC2000. Also, the BCM5461 has extremely low EMI emissions, analyzer software can be used with the device to provide remote which reduces the design constraints required to meet EMI emissions management of the cable and first-level diagnostics and fault isolation. specifications. The BCM5461 also has ESD tolerance that exceeds typical industry In addition to supporting the IEEE 802.3 Standard Gigabit Media standards. This prevents ESD damage not only during manufacturing but Independent Interface (GMII), the BCM5461 also supports the RGMII and during CESD events in the field. Cable-sourced electrostatic discharge RTBI interfaces. RGMII is a reduced pin-count (12 versus 25) version of (CESD) is an ESD event that occurs when an electrically charged network the GMII, and RTBI is a reduced pin-count version of TBI utilizing cable is plugged into a network port, an issue becoming more prevalent standard ASIC technology. The small package, multiple MAC interfaces, with contemporary cable installations. and streamlined power supply lowers system cost and simplifies the system and board level design. 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. 5461-PB05-R 04/17/06