RTL8211FI-CG – Integrated Ethernet Precision Transceiver Interface IC QFN-40

Resources:
Datasheet
Gigabit Ethernet PHY Transceiver IC with RGMII Interface for 10/100/1000 Mbps Network Applications
The RTL8211FI-CG is a highly integrated Ethernet PHY transceiver designed to enable reliable high-speed network connectivity in embedded systems. Developed by Realtek Semiconductor, this device supports 10Base-T, 100Base-TX, and 1000Base-T standards, providing a complete physical layer solution for transmitting and receiving Ethernet data over CAT5 UTP cables.
Built using advanced DSP technology and an optimized analog front end (AFE), the RTL8211FI-CG ensures robust signal integrity through features such as adaptive equalisation, echo cancellation, and cross-talk suppression. The device interfaces with the MAC layer via RGMII, supporting multiple I/O voltage levels (3.3 V, 2.5 V, 1.8 V, and 1.5 V), offering flexibility for various processor platforms. With integrated power management and industrial-grade reliability, this transceiver is ideal for networking equipment, industrial automation, embedded Linux systems, and IoT gateways.
Key Features

Gigabit Ethernet PHY: Supports 10/100/1000 Mbps data rates (IEEE 802.3 compliant).
RGMII Interface: Enables high-speed communication between MAC and PHY layers.
Advanced DSP Processing: Includes echo cancellation, cross-talk suppression, and adaptive equalisation.
Auto MDI/MDIX Detection: Automatic crossover detection and correction for simplified cabling.
Wide I/O Voltage Support: Compatible with 3.3 V, 2.5 V, 1.8 V, and 1.5 V logic levels.
Integrated Analog Front End: Optimised for high signal integrity over CAT5 cables.
Industrial Grade Operation: Suitable for extended temperature environments.
On-Chip Power Management: Integrated switching regulator for efficient operation.
Compact QFN Package: Ideal for high-density PCB designs.