MARVELL 88E1145-BBM1 Gigabit Ethernet Transceiver: Datasheet and Technical Specifications

The MARVELL 88E1145-BBM1 is a highly integrated, single-port Gigabit Ethernet transceiver designed to provide a complete physical layer (PHY) solution for high-performance networking applications. Fabricated using advanced CMOS technology, this transceiver is engineered to deliver robust connectivity and exceptional signal integrity for enterprise switches, routers, network interface cards (NICs), and embedded systems.

A core feature of the 88E1145-BBM1 is its full compliance with the IEEE 802.3ab 1000BASE-T standard, ensuring seamless interoperability within Gigabit Ethernet networks. It supports both auto-negotiation and auto-MDI/MDIX functions, which automatically select the highest possible link speed (10/100/1000 Mbps) and correct for any cabling issues without requiring crossover cables. This significantly simplifies installation and reduces support overhead.

The device incorporates Marvell's advanced DSP-based echo cancellation and equalization technology. This is critical for achieving reliable data transmission at gigabit speeds over standard Category 5 unshielded twisted-pair (UTP) copper cabling, effectively compensating for signal impairments like attenuation and crosstalk.

From a power management perspective, the 88E1145-BBM1 is designed for efficiency. It supports IEEE 802.3az Energy Efficient Ethernet (EEE), which dramatically reduces power consumption during periods of low data activity. This makes it an ideal choice for eco-conscious and power-sensitive applications.

Housed in a compact 128-pin MQFP package, the PHY interfaces directly to a MAC layer via a standard GMII, RGMII, or SerDes interface, offering design flexibility. Its industrial temperature range support ensures reliability in demanding environments.

ICGOOODFIND: The Marvell 88E1145-BBM1 stands out as a reliable and feature-rich Gigabit Ethernet PHY transceiver. Its robust integration of advanced signal processing, comprehensive standard compliance, and strong power management features make it a proven solution for building efficient and high-performance network infrastructure.

Keywords: Gigabit Ethernet Transceiver, IEEE 802.3ab, Auto-Negotiation, Energy Efficient Ethernet (EEE), Physical Layer (PHY)