BCM84880B0KFSBG

Overview

The Broadcom BCM84880B0KFSBG is a single-port Ethernet CMOS transceiver designed for high-speed data transmission over twisted-pair cabling. It supports 5GBASE-T, 2.5GBASE-T, 1000BASE-T, and 100BASE-TX standards compliant with IEEE 802.3bz, 802.3ab, and 802.3u. The device integrates digital adaptive equalizers, ADCs, phase-locked loops, line drivers, echo cancelers, and crosstalk cancelers. It provides MAC interfaces including USXGMII, XFI, 5000BASE-X, 2500BASE-X, and 1000BASE-X (SGMII). The component operates within an ambient temperature range of 0°C to 70°C and utilizes a 169-pin BGA package.

Feature Summary

• Integrated physical-layer functions for multiple Ethernet speeds on Category 5e, 6, or 6A cables
• Supports Energy Efficient Ethernet (EEE) protocol with AutogrEEEn mode for legacy systems
• Includes Enhanced Cable Diagnostics for detecting shorts, opens, and cable length issues
• Provides comprehensive IEEE 1588 PTP version 2 timestamping capabilities

Applications

• Wi-Fi access points
• Broadband CPE devices
• Ethernet switch uplinks
• Radio access network fronthaul and backhaul
• Industrial Ethernet networks

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm the presence of a heat spreader and the correct operating temperature range. Ensure compatibility with the required MAC interface standard, such as USXGMII or XFI, before integration into the system design.

Selection Notes

Select this component when a single-port solution supporting 5G and 2.5G NBASE-T over existing copper infrastructure is required. Consider the thermal requirements and PCB layout constraints associated with the 169-pin BGA package. Verify that the target application environment falls within the specified commercial temperature limits.

Part Context

This part belongs to the Broadcom BCM84880 series of single-port Ethernet transceivers. The 'B0' designation indicates the silicon revision, while 'KF' specifies the package type with a heat spreader. The 'SBG' suffix denotes RoHS compliance. This model serves as a bridge between MAC controllers and RJ-45 magnetics for modern Ethernet deployments.

Replacement Considerations

The BCM84880B0IFEBG is a verified alternative offering industrial temperature support (-40°C to +85°C) without a heat spreader. For applications requiring commercial temperatures without a heat spreader, the BCM84880B0KFEBG is available.