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BCM5461 Datasheet

Part NameBCM5461 Broadcom
Broadcom Corporation Broadcom

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Gigabit Ethernet transceiver. The BCM5461 is optimized for low power and small footprint size to enable backplane and uplink applications. By lowering system cost and reducing power dissipation by nearly 30%, the BCM5461 enables a new class of cost-effective Gigabit Ethernet equipment, driving the delivery of Gigabit bandwidth to the desktop.
The BCM5461’s Digital Signal Processor based architecture and advanced power management techniques combine to achieve robust and low power 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, but maintains the industry’s highest level of margin over IEEE requirements for Echo, NEXT, and FEXT. Low power is a key factor in implementing Gigabit small form factor NICs and uplinks and, at less than 700 mW per port, the BCM5461 has the industrys lowest power. For NIC applications, support for Wake on LAN enables compliance with PCI 2.2 and PC99/PC2000. Also, the BCM5461 has extremely low EMI emissions, which reduces the design constraints required to meet EMI emissions specifications.

• Fully-integrated 10BASE-T/100BASE-TX/1000BASE-T Gigabit Ethernet transceiver
• GMII, RGMII, RTBI, and MII MAC Interface options
• On-chip low-voltage regulators
• Fully compliant with IEEE 802.3, 802.3u, and 802.3ab standards
• 0.13µ CMOS—low power and cost
• Low power
   - Less than 700 mW per port
   - Wake on LAN support
   - Advanced power management
• Trace matched output impedance
• Line-side loopback
• Low EMI emissions
• Cable-plant diagnostic
   - Cable-plant analyzer function detects cable plant impairments
   - Link quality indication LED
   - Automatic detection and correction of wiring pair swaps, pair skew, and pair polarity
   - Automatic MDI/MDIX crossover at all speeds
• 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

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