Broadcom Quad-port 5GBASE-T/2.5GBASE-T/1000BASE-T/100BASE-TX Ethernet CMOS Transceiver - BCM84884EB0KFSBG
The Broadcom BCM84884E is a quad-port 5GBASE-T/2.5GBASE-T/1000BASE-T/100BASE-TX Ethernet CMOS transceiver.
The device performs all physical-layer functions for 5GBASE-T, 2.5GBASE-T, 1000BASE-T, and 100BASE-TX Ethernet on Category Cat5e, 6, or 6A twisted-pair cable.
The BCM84884E supports the USXGMII, XFI, 5000BASE-X, 2500BASE-X, and 1000BASE-X (SGMII) interface for connection to a MAC.
The BCM84884E is a highly integrated solution combining digital adaptive equalizers, ADCs, phase-locked loops, line drivers, encoders, decoders, echo cancelers, crosstalk cancelers, and all required support circuitry.
The BCM84884E features the Energy Efficient Ethernet (EEE) protocol. EEE enables the BCM84884E to auto-negotiate and operate with EEE-compliant link partners to reduce overall system power during low utilization of the link. Broadcom’s AutogrEEEn mode permits legacy systems to enjoy the power saving benefits of EEE.
The BCM84884E automatically negotiates an operating speed with any transceiver on the opposite end of the line.
The BCM84884E features Enhanced Cable Diagnostics, which detects common cable problems such as shorts, opens, and cable length.
Features
- Single-chip integrated quad-port Ethernet transceiver-MAC to magnetics:
- 5GBASE-T 802.3bz
- 2.5GBASE-T 802.3bz
- 1000BASE-T IEEE 802.3ab
- 100BASE-TX IEEE 802.3u
- 5G NBASE-T spec.
- 2.5G NBASE-T spec.
- IEEE 802.3z
- IEEE 802.3az
- USXGMII, XFI, 5000BASE-X, 2500BASE-X, and 1000BASE-X (SGMII) MAC Interfaces
- 5G rate over USXGMII/XFI/5000BASE-X MAC interfaces
- 2.5G rate over USXGMII/XFI/2500BASE-X MAC interfaces
- IEEE 1588-2008 PTP version 2 (Time Stamp)
- IEEE fast retrain and link monitoring
- EEE on 5GBASE-T, 2.5GBASE-T, 1000BASE-T, and 100BASE-TX
- Trace matched output impedance
- Line-side loopback
- Low electromagnetic interference (EMI) emissions
- Enhanced cable diagnostics
- Support for jumbo packets up to 18 KB
- Detection and correction of pair swaps (MDI crossover), pair skew, and pair polarity
- Auto-negotiation with next page support
- IEEE 1149.1 (JTAG) and IEEE 1149.6 (ACJTAG) boundary scan support
- Low-power, 1.0V CMOS core
- 1.2V or 2.5V MDIO I/O, 1.8V CMOS I/O
- Device package: 19 mm × 19 mm BGA
Applications
- Ethernet Switch
- Ethernet Server
- Fronthaul and backhaul of Radio Access Network
- Industrial Ethernet
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