RTL8211E

Product Overview

RTL8211E is a Realtek highly integrated 10/100/1000Mbps Ethernet transceiver designed for Gigabit Ethernet networking applications. The device integrates the complete physical-layer functions required for 10BASE-T, 100BASE-TX and 1000BASE-T operation over standard CAT.5 twisted-pair cable. Using advanced DSP and analog front-end technology, RTL8211E provides adaptive equalization, echo cancellation, crosstalk cancellation, polarity correction and automatic crossover detection for reliable high-speed Ethernet communication.

Key Features

• Manufacturer: Realtek Semiconductor

• Part Number: RTL8211E

• Product Type: Gigabit Ethernet Transceiver

• Function: Integrated Ethernet PHY

• Supported Data Rates: 10Mbps, 100Mbps and 1000Mbps

• Ethernet Standards: IEEE 802.3, IEEE 802.3u and IEEE 802.3ab

• Network Modes: 10BASE-T, 100BASE-TX and 1000BASE-T

• Cable Interface: CAT.5 UTP

• MAC Interface: RGMII

• Optional MAC Interface: GMII on Supported Variants

• MII Support: Available for 10BASE-T and 100BASE-TX Modes

• 1000BASE-T Signaling: 4D-PAM5

• 1000BASE-T Symbol Rate: 125MBaud

• DSP Technology: Integrated Digital Signal Processing

• Analog Front End: Integrated AFE

• Auto-Negotiation: Supported

• Crossover Detection and Auto-Correction: Supported

• Polarity Correction: Supported

• Adaptive Equalization: Supported

• Echo Cancellation: Supported

• Crosstalk Cancellation: Supported

• Timing Recovery: Integrated

• Error Correction: Integrated

• RGMII Signaling Voltage: Variant Dependent, Including 3.3V, 2.5V, 1.8V or 1.5V

• Mounting Type: Surface Mount

• Typical Variants: RTL8211E-VB-CG and RTL8211E-VL-CG

• Key Characteristics: High Integration, Robust Signal Processing and Gigabit Ethernet Support

Applications

RTL8211E is suitable for networking equipment requiring reliable 10/100/1000Mbps Ethernet physical-layer connectivity. Typical applications include routers, switches, embedded computers, network appliances, industrial controllers, IP cameras, set-top boxes, communication equipment and other systems using a MAC processor with RGMII or compatible Ethernet interfaces.

Design & Selection Considerations

RTL8211E uses integrated DSP and analog front-end circuitry to maintain reliable data transmission over twisted-pair Ethernet cabling. Designers should verify the exact ordering suffix because interface voltage and supported MAC interfaces differ between RTL8211E variants. Proper transformer selection, differential-pair impedance control, power-supply filtering, reference clock design and PCB layout are also important for maintaining Gigabit Ethernet signal integrity and EMC performance.

Quality & Sourcing

Antrex Electronics can support RTL8211E sourcing with stock availability checks, RFQ quotation, package confirmation, date code review and shipment arrangement. For project-based purchasing, customers can provide quantity requirements, delivery schedules, exact suffix requirements and application details for faster quotation support.

For quality assurance, Antrex Electronics can assist with product photos, marking verification, visual inspection and third-party testing services when required. Networking equipment manufacturers, industrial electronics companies, embedded system developers and electronic component buyers are welcome to submit BOM lists or hard-to-find Ethernet PHY requirements for sourcing assistance.