BCM84848

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.

BCM84848+10GYT002/10GYT007+RJ45

关联IC:BCM84848；BCM84883；BCM84888

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