BCM5482 DUAL-PORT 10/100/1000BASE-T GIGABIT ETHERNET TRANSCEIVER FEATURES SUMMARY OF BENEFITS Dual-port integrated 10BASE-T/100BASE-TX/1000BASE-T Low-power, dual-port integration reduces design constraints Gigabit Ethernet transceiver . for space-constrained IP phone applications. RGMII, SGMII, and SerDes MAC interface options. Compact solution for 10/100Base-TX uplink applications. 1-Gbps line-side SerDes with RGMII MAC interface. Provides compatibility with IEEE standard devices operating at 10, 100, and 1000 Mbps at half-duplex and full-duplex. Fully compliant with IEEE 802.3, IEEE 802.3u, and IEEE 802.3ab standards. Clock timing can be adjusted to eliminate board trace delays required by the RGMII specification. 0.13-micron CMOSlow power and cost. Lowers system BOM cost and simplifies system design. Supports copper or fiber in RGMII mode. Eases system level debugging. Low power. Enables use of low-cost magnetics. 600 mW per port. Advanced power management. Cable diagnostic function characterizes cable plant condition and immediately indicates cabling issues. Trace-matched output impedance. Prevents erroneous equipment return due to bad cable plants. Line-side and MAC-side loopback. Prevents manufacturing fallout due to bad cable plants. Low EMI emissions. Allows immediate uptime at reduced speeds (100Base-TX or 10Base-T). CableChecker Diagnostics. Over 3 kV of CESD tolerance prevents equipment damage and Cable plant analyzer function detects cable plant impairments. return. Ethernet WireSpeed. Automatic MDI/MDIX crossover at all speeds. Operates with larger packets for wider range of packet protocol support and improved efficiency. Robust cable-sourced electrostatic discharge (CESD) tolerance. Ease of manufacturing with JTAG support, simplified power Support for jumbo packets up to 10 kB. supply, and multiple MAC interfaces. IEEE 1149.1 (JTAG) boundary scan. 121-pin BGA package. BCM5482 System Diagram BCM5482OVERVIEW TX DAC GTXCLK 2:1 SYMBOL ENCODER TXD 3:0 2:1 TX EN 2:1 XTALK CANCELLER ECHO BASELINE CANCELLER WANDER SCLK(1) 2:1 + CORRECTION SGOUT(1) 2:1 + SERIAL/SGMII SGIN(1) 2:1 + TRD 3:0 2:1 + DFE AND FFE TRELLIS DECODER PGA ADC RXD 3:0 2:1 SYMBOL DECODER/ TIMING AND PHASE RXC 2:1 ALIGNER RECOVERY AUTO- RX DV 2:1 NEGOTIATION LED DRIVERS LED 2:1 2:1 XTAL1 CLOCK XTAL0 GENERATOR MII MGMT MDC 2:1 RDAC BIAS GENERATOR MII REGISTERS MDIO 2:1 CONTROL REGSUP 2:1 VOLTAGE REGCNTL 2:1 REGULATOR REGSEN 2:1 MODES A member of Broadcoms third generation of Gigabit Ethernet PHYs, allow fewer pins at the MAC/switch, which reduces the MAC/switch the BCM5482 consists of two complete 10/100/1000BASE-T Gigabit cost by enabling smaller die sizes than would be possible with full GMII. Ethernet transceivers integrated on a single monolithic CMOS chip. The This device is another member of Broadcoms 0.13-m Gigabit Ethernet BCM5482 is optimized for low power and small footprint size to reduce copper PHY family, joining more than 25 other quad and single design complexity for space-constrained IP phone applications. For 10/ products. The 0.13-m process is the optimal process that offers the best 100BASE-TX applications, the single package offers a compelling performance, lowest cost, and lowest power for Gigabit Ethernet copper advantage over two single devices for Gigabit uplinks. solutions. Broadcom continues to expand its leadership in 0.13-m The BCM5482 DSP-based architecture and advanced power technology with the BCM5482, part of its third generation of 0.13-m management techniques combine to achieve robust and low-power Gigabit Ethernet copper transceivers. operation over existing Category 5 twisted-pair wiring. The BCM5482 Each BCM5482 port is fully independent and has individual interface, architecture not only meets the requirements of IEEE 802.3, control, and status registers, and incorporates a number of advanced IEEE 802.3u, and IEEE 802.3ab, but also maintains the industrys features. This includes identifying physical wiring defects that the highest level of margin over IEEE requirements for echo, near-end BCM5482 cannot automatically correct for, and channel conditions such crosstalk (NEXT), and far-end crosstalk (FEXT). With the industry s as excessive cable length and return loss, crosstalk, echo, and noise. lowest power at 600 mW per port, the BCM5482 assists in reducing the Broadcoms cable analyzer software can be used with the device to power distribution requirements of IP phone systems. In addition, the provide remote management of the cable and a first level of diagnostics BCM5482 has extremely low EMI emissions, which reduces the design and fault isolation. constraints required to meet EMI radiation specifications. The BCM5482 also has ESD tolerance that is well above typical industry The BCM5482 supports the RGMII, SGMII, and SerDes MAC standards. This prevents ESD damage not only during manufacturing, interfaces. The RGMII, SGMII, and serial SerDes inteerfaces are but also during CESD events in the field. The CESD is an ESD event that reduced-pin-count (12, 6, and 4, respectively, versus 25) versions of the occurs when an electrically charged network cable is plugged into a GMII. The RGMII clock timing can be adjusted to eliminate the board network port. This is an issue becoming more prevalent with trace delays required by the RGMII specification. These reduced-pin- contemporary cable installations. The BCM5482 can tolerate over 3 kV count interfaces simplify design and lower system cost by reducing the of CESD. number of layers required for signal routing. In addition, these interfaces Broadcom , the pulse logo, QuadSquad, and Connecting everything 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. 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 2005 by BROADCOM CORPORATION. All rights reserved. 5482-PB00-R 4/29/05