PHY 4-CH 10Mbps/100Mbps/1Gbps 676-Pin FBGA

The Broadcom BCM84834 is a complete quad 100BASE-TX, 1000BASE-T/10GBASE-T solution operating at 100m over CAT6a UTP cable. It is based on highly advanced digital signal processor architecture to enable robust operations over worst case UTP cables. The BCM84834 is a highly integrated solution combining enhanced analog front ends with digital adaptive equalizers, ADCs, phase-locked loops, line drivers, LDPC encoders and decoders, echo cancellers, crosstalk cancellers, and all required support circuitry.

• Highly integrated four-port 10GBASE-T Ethernet transceiver.
• Supports multiple speeds: 100BASE-TX and 1000BASE-T
• XFI and SGMII MAC interface options
• Compliant with IEEE 802.3™, IEEE 802.3an, IEEE 802.3ab, and IEEE 802.3u standards.
• AutogrEEEn permits legacy MACs to receive the power savings of EEE in periods of reduced link utilization.
• Synchronous Ethernet support
• Low electromagnetic interference (EMI) emissions
• 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 selected port.
• IEEE 1149.1 (JTAG) boundary scan
• Extensive selection of both line and network side loopbacks.
• 676-pin FBGA 27 mm x 27 mm package