BCM84812 Broadcom Corp., BCM84812 Datasheet
BCM84812
Manufacturer Part Number
BCM84812
Description
Dual-port 10gbase-t Transceiver
Manufacturer
Broadcom Corp.
Datasheet
1.BCM84812.pdf
(2 pages)
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Fully integrated dual-port 10GBASE-T Ethernet transceiver
Supports lower speeds: 10BASE-T, 100BASE-TX, 1000BASE-T
XAUI™ and SGMII MAC interface options
Compliant with IEEE 802.3™, 802.3an, 802.3ab, and 802.3u
standards
Support for 100m operation with a 30m low-power mode
On-chip low-voltage regulators
Line-side loopback mode
Low electromagnetic interference (EMI) emissions
Cable plant diagnostics
Detection and correction of pair-swaps (MDI crossover),
pair skew, and pair polarity
Support for jumbo packets up to 18 KB
IEEE 1149.1 (JTAG) boundary scan
672-pin FBGA 27 mm x 27 mm package
Controller
Switch
MAC
or
F E A T U R E S
DUAL-PORT 10GBASE-T TRANSCEIVER
SGMII
SGMII
XAUI
XAUI
®
General 10-Gigabit Ethernet Connectivity
BCM84812
BCM84812
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MDI
MDI
Simplifies system and board design
• Reduces PCB space
• Lowers system bill of materials (BOM)
Provides interoperability with IEEE standard devices
operating at 10 Mbps, 100 Mbps, 1000 Mbps, and 10 Gbps
Compatibility with industry standard Ethernet MACs
Flexibility for copper or fiber applications
Reduces system design constraints to meet EMI emissions
standards
Cable diagnostic function characterizes cable plant condition
and immediately indicates cabling issues.
Operates with larger packets for wider range of packet
protocol support and improved efficiency
Ease of manufacturing with JTAG support and simplified
power supply
S U M M A R Y O F B E N E F I T S
Transformer
Transformer
RJ-45
RJ-45
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BCM84812 Summary of contents
Page 1
... Operates with larger packets for wider range of packet protocol support and improved efficiency • Ease of manufacturing with JTAG support and simplified power supply General 10-Gigabit Ethernet Connectivity MDI BCM84812 MDI RJ-45 Transformer RJ-45 Transformer ...
Page 2
... ADCs, phase-locked loops, line drivers, LDPC encoders and decoders, echo cancellers, crosstalk cancellers, and all required support circuitry. The BCM84812 is optimized to enable switch, controller, and other general 10-Gigabit Ethernet (GbE) connectivity applications. It supports two four-lane 3.125 Gbps XAUI interfaces to allow connectivity to 10-GbE MACs ...