Dual-Port 10GBASE-T Transceiver with XFI, 21mm BGA
FOUR-PORT 10GBASE-T TRANSCEIVER
The Broadcom? BCM84848 is a complete quad 100BASE-TX, 1000BASE-T and 10GBASE-T solution operating at 100m over CAT6a UTP cable. Its 23 x 23 mm BGA package permits 48-port 1RU switches to be implemented with the PHYs in a single row, with room remaining for 6 QSFP uplinks. The BCM84848 offers lower power than our firstgeneration 40 nm 10GBASE-T PHYs while adding Energy Efficient Ethernet (EEE) for 1000BASE-T and 100BASE-TX, in addition to 10GBASE-T. Optional Adaptive Voltage Scaling (AVS) delivers a low power solution while enabling a low cost implementation. The BCM84848 is based on a highly advanced digital signal processor architecture to enable robust operations over worst case UTP cables.
Small 23 x 23 mm package enables single-row PHY design for 48-port switches while offering forward compatible footprint ? Robust operation over 100m Cat6a cables with industry-standard 4-pair magnetics. ? Auto-negotiation lowers system administration cost. ? EEE on GbE delivers lower power for legacy interconnections. ? IEEE standard device interoperability: 100 Mbps, 1000 Mbps, and 10 Gbps. ? Cuts design constraints to meet EMI standards.? Cable diagnostics identifies cable plant condition to immediately trace cabling issues. ? 1588v2 with one-step timestamp insertion provides high accuracy timing. ? 802.1ae MACsec provides link layer security
? Highly integrated four-port 10GBASE-T Ethernet transceiver. ? Supports multiple speeds: 10GBASE-T as well as 100BASE-TX and 1000BASE-T. ? XFI and SGMII MAC interface options. ? Compliant with IEEE 802.3, IEEE 802.3an, IEEE 802.3ab, IEEE 802.3u, and IEEE 802.3az standards. ? AutogrEEEn technology permits legacy MACs to receive the power savings of EEE in periods of reduced link utilization. ? Reduced number of power supplies with standard voltages: 1.0V and 2.5V. ? AVS for the creation of a local DVdd supply from a 3.3V global supply. ? Synchronous Ethernet (SyncE) support. ? Cable plant diagnostics. ? IEEE standard 1588-2008 (version 2) support. ? Detection and correction of pair swaps (MDI crossover), pair skew, and pair polarity. ? Support for jumbo packets up to 18 KB. ? Super-Isolate mode to completely disable a selected port. ? IEEE 1149.1 (JTAG) boundary scan. ? Extensive selection of both line and network side loopbacks.