Broadcom BCM5461 10/100/1000BASE-T Gb Transceivers

Broadcom BCM5461 10/100/1000BASE-T Gb Transceivers feature a copper/fiber media interface, low power, and a small footprint size to enable backplane and uplink applications. By lowering system cost and reducing power dissipation by nearly 30%, the BCM5461 series enables cost-effective Gigabit Ethernet equipment, driving the delivery of Gigabit bandwidth to the desktop. The digital signal processor-based architecture and advanced power management techniques combine to achieve robust and low-power operation over existing CAT 5 twisted-pair wiring. The architecture also meets 802.3, 802.3u, and 802.3ab requirements. Other features include 0.13µ CMOS and <700mW per port. For NIC applications, support for wake on LAN enables compliance with PCI 2.2 and PC99/PC2000. Broadcom BCM5461 10/100/1000BASE-T Gb Transceivers have extremely low EMI emissions, reducing the design constraints required to meet EMI emission specifications.


  • Fully integrated 10BASE-T/100BASE-TX/1000BASE-T gigabit Ethernet transceivers
  • Interface options
    • BCM5461S: GMII, RGMII, SGMII, SerDes, RTBI, and MII MAC
    • BCM5461: GMII, RGMII, RTBI, and MII MAC
  • Line-side copper and fiber interfaces (BCM5461S)
  • On-chip low-voltage regulators
  • Fully compliant with IEEE 802.3, 802.3u, and 802.3ab standards
  • 0.13µ CMOS for low power and cost
  • <700mW 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 9KB
  • IEEE 1149.1 (JTAG) boundary scan
  • 128-pin MQFP, 117-pin BGA, and 100-pin FBGA packages


  • Blade Servers
  • Gaming Devices
  • Network Interface Cards (NICs).
  • Routers
  • Servers
  • Switches

Block Diagram

Block Diagram - Broadcom BCM5461 10/100/1000BASE-T Gb Transceivers
Publicado: 2019-09-17 | Actualizado: 2023-07-03