AQR412C-B0-C

Overview

The Marvell AQR412C-B0-C is a quad-port, 2.5Gbps Ethernet PHY transceiver belonging to the AQrate GEN3 family. It supports 5GBASE-T, 2.5GBASE-T, 1000BASE-T, and 100BASE-TX standards over Cat 5e or better cabling for distances exceeding 100 meters. The device complies with IEEE 802.3bz specifications and integrates Energy Efficient Ethernet (EEE), MACsec (IEEE 802.1ae), Synchronous Ethernet (Sync-E), Precision Time Protocol (PTP/1588v2), Wake-on-LAN support, and advanced cable diagnostics. It accommodates all PoE standards up to 100W and jumbo packets up to 16KB. The component is housed in a 14 x 12 mm package.

Feature Summary

• Quad-port architecture supporting 2.5Gbps per port
• Full-reach Multi-Gigabit connectivity over existing twisted pair infrastructure
• Integrated hardware security via MACsec standard
• Built-in thermal management and diagnostic capabilities

Applications

• Enterprise switches
• Carrier premises equipment
• Home gateways

Procurement Notes

Verify the specific B0 stepping suffix against the manufacturer's latest documentation to confirm silicon revision details. Ensure compatibility with the target system's power delivery requirements for 100W PoE operation. Confirm that the 14 x 12 mm package footprint aligns with the PCB layout constraints of the design.

Selection Notes

Select this component when a quad-port solution is required for enterprise or carrier environments utilizing existing Cat 5e or Cat 6 cabling. It is suitable for applications demanding high-density ports with full-reach Multi-Gigabit speeds. Consider alternative single-port models if fewer physical interfaces are needed for the specific network topology.

Part Context

This part belongs to the Marvell AQrate GEN3 Ethernet PHY family, which also includes single-port variants like the AQR112C and higher-speed quad-port options such as the AQR411C. The family shares common architectural features including IEEE 802.3bz compliance and integrated DSP capabilities for signal integrity optimization across various copper media types.

Replacement Considerations

The AQR411C serves as a functional substitute offering 5Gbps speed on the same quad-port 14 x 12 mm package. For single-port implementations, the AQR112C provides equivalent 2.5Gbps performance in a smaller 7 x 7 mm form factor.