KSZ9031RNXIA Description

A fully integrated triple-speed (10BASE-T/100BASE-TX/1000BASE-T) Ethernet physical layer transceiver for CAT-5 unshielded twisted pair (UTP) cable, the KSZ9031RNX transmits and receives data at these speeds. As a direct connection to RGMII MACs in Gigabit Ethernet processors and switches, the KSZ9031RNX offers the Reduced Gigabit Media Independent Interface (RGMII), enabling data transfer at 10/100/1000 Mbps. By utilizing on-chip termination resistors for the four differential pairs and integrating an LDO controller to drive a cheap MOSFET to supply the 1.2V core, the KSZ9031RNX lowers board costs and streamlines board layout. The KSZ9031RNX has diagnostic functions that make system setup and troubleshooting easier during product deployment and production testing. Fault detection between the board and the KSZ9031 I/Os is made possible via parametric NAND tree support.

KSZ9031RNXIA Features

• Jumbo Frame Support up to 16 KB

• 125 MHz Reference Clock Output

• RGMII with 3.3V/2.5V/1.8V Tolerant I/Os

• On-Chip Termination Resistors for the Differential Pairs

• Programmable LED Outputs for Link, Activity, and Speed

• Wake-On-LAN (WOL) Support with Robust Custom-Packet Detection

• Energy Detect Power-Down Mode for Reduced Power Consumption When the Cable is Not Attached

KSZ9031RNXIA Applications

• IPTV

• IP Set-Top Box

• Game Console

• Network Server

• Industrial Control

• Broadband Gateway

• Laser/Network Printer

• Gigabit SOHO/SMB Router

• Network Attached Storage (NAS)

• Automotive In-Vehicle Networking

• Gigabit LAN on Motherboard (GLOM)

• Triple-Play (Data, Voice, Video) Media Center