Broadcom Limited BCM5482SA2KFB

BCM5482SA2KFB Dual-Port Gigabit Ethernet PHY

The BCM5482SA2KFB from Broadcom (now part of Avago Technologies) is a highly integrated dual-port Gigabit Ethernet transceiver designed for enterprise networking equipment, featuring two independent 10/100/1000BASE-T PHY interfaces with advanced power management and signal processing capabilities. This sophisticated PHYceiver incorporates Broadcom's proprietary digital signal processor technology to deliver exceptional performance over CAT 5/6/7 cabling while maintaining compliance with IEEE 802.3, 802.3u, 802.3ab, and 802.3az standards. The device supports energy-efficient Ethernet (EEE) operations, automatic MDI/MDIX crossover, and comprehensive cable diagnostics, making it an ideal solution for switches, routers, network interface cards, and other networking infrastructure requiring reliable, high-speed copper connectivity with minimal power consumption.

Key Electrical Characteristics and Application 

The BCM5482SA2KFB delivers outstanding electrical performance with support for 10/100/1000 Mbps operation over standard twisted-pair cabling, utilizing sophisticated DSP algorithms for echo cancellation, cross-talk cancellation, and equalization. The transceiver features a typical power consumption of 500mW per port during active operation, reduced to less than 100mW in EEE low-power idle mode, and incorporates advanced baseline wander correction for superior signal integrity. Key specifications include support for jumbo frames up to 9KB, auto-negotiation and link status monitoring, integrated termination resistors, and robust ESD protection exceeding 8kV, ensuring reliable operation in demanding networking environments with comprehensive fault detection and reporting capabilities.

The BCM5482SA2KFB is primarily deployed in enterprise-grade network switches, routers, and network interface cards where dual-port Gigabit Ethernet connectivity is required. Its advanced features make it ideal for data center equipment, server motherboards, network storage systems, and industrial networking applications requiring reliable high-speed communication. The device's energy-efficient capabilities make it particularly valuable in green data center applications and power-sensitive environments, while its robust diagnostic features support network management systems in enterprise and carrier-grade equipment where remote troubleshooting and link monitoring are essential for maintaining network reliability and performance.

Alternative Ethernet Transceiver Part Numbers

● BCM5481: A single-port version of the same PHY technology with identical features for applications requiring only one Ethernet interface.

● BCM5462: A similar dual-port Gigabit Ethernet transceiver with enhanced industrial temperature range support for harsh environment applications.

● AR8035: A competitive single-port Gigabit PHY from Qualcomm offering similar features with additional industrial temperature capability.

● 88E1111: Marvell's popular single-port Gigabit Ethernet transceiver providing robust performance with comprehensive management features.