MARVELL 88E1116R-XX-NNC1C000 Gigabit Ethernet Transceiver: Datasheet and Design Guide Overview
The MARVELL 88E1116R-XX-NNC1C000 is a highly integrated, single-port Gigabit Ethernet transceiver designed to provide robust physical layer (PHY) functionality for a wide range of networking applications. This device supports both copper and fiber interfaces, offering designers exceptional flexibility. It complies with the IEEE 802.3ab standard for 1000BASE-T operation and is also backward compatible with 10/100 Mbps Ethernet standards (10BASE-T and 100BASE-TX), ensuring broad compatibility with existing network infrastructure.
A key strength of the 88E1116R lies in its advanced power management capabilities, which are critical for energy-sensitive applications. It supports various low-power states, including Wake-on-LAN (WoL), allowing systems to reduce power consumption significantly while maintaining network presence. The transceiver also features automatic MDI/MDIX crossover on all copper ports, simplifying installation by eliminating the need for specific straight-through or crossover cables.
From a design perspective, the component integrates a high-performance DSP and analog front-end (AFE), enabling superior signal integrity and extended reach over CAT 5 cabling. The design guide emphasizes the importance of proper PCB layout for optimal performance. Critical recommendations include implementing a solid ground plane, careful decoupling of power supplies, and strict adherence to controlled impedance routing for differential pairs to minimize signal degradation and electromagnetic interference (EMI).
The interface to the Media Access Controller (MAC) is typically a standard Gigabit Media Independent Interface (GMII), Reduced GMII (RGMII), or Serial GMII (SGMII), providing design flexibility to connect with various switches and processors. For fiber applications, the device includes a SerDes interface that can directly drive optical modules.
Robust error detection and link diagnostics are integral features, allowing for real-time monitoring of link quality and facilitating easier troubleshooting in deployed systems.
ICGOOODFIND: The Marvell 88E1116R-XX-NNC1C000 is a versatile and power-efficient Gigabit Ethernet PHY transceiver. Its dual media support (copper/fiber), advanced power management, and integration of critical functions make it an excellent choice for designing high-performance, low-power network equipment such as switches, routers, network interface cards, and embedded systems.
Keywords: Gigabit Ethernet Transceiver, Power Management, Physical Layer (PHY), Signal Integrity, RGMII
