MCHPKSZ9031RNXIC

Overview

The KSZ9031RNXIC is a single-chip 10/100/1000 Mbps Ethernet Physical Layer (PHY) transceiver that utilizes the RGMII interface for simplified connectivity to MAC controllers. It features integrated termination resistors and an on-chip LDO controller to reduce overall BOM count and PCB footprint. This industrial-grade device is compliant with IEEE 802.3 standards and supports advanced features like Energy Efficient Ethernet and Wake-On-LAN.

Why Choose This Part

The device simplifies PCB layout by including on-chip termination resistors for differential pairs and an integrated LDO controller to generate the 1.2V core voltage from a 3.3V or 2.5V supply. It also includes LinkMD TDR-based cable diagnostics, allowing engineers to identify common cabling issues like opens or shorts during field deployment.

Applications

Getting Started

Evaluation can be performed using the KSZ9031RNX Evaluation Board (KSZ9031RNX-EVAL), which provides a standard RGMII interface for connection to an MCU or FPGA. Development involves configuring the device via the MDC/MDIO management interface to set parameters like RGMII timing delays and jumbo frame support up to 16KB.

KSZ9031 Family

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