RTL8221B(I)-VB-CG中文资料INTEGRATED 10/100/1000M/2.5G ETHERNET TRANSCEIVER数据手册Realtek规格书

描述 Description

The Realtek RTL8221B(I)-VB-CG (hereafter referred to as the RTL8221B(I)-VB, except where differences exist) is a highly integrated Ethernet PHY transceiver that is compatible with 10BASE-Te, 100BASE-TX, 1000BASE-T, and 2.5GBASE-T, and is fully compatible with both the IEEE 802.3 standard and the NBASE-T™ Alliance PHY. It provides all the necessary physical layer functions to transmit and receive Ethernet packets over CAT.5e UTP cable.
The RTL8221B(I)-VB uses state-of-the-art DSP technology and Analog Front End (AFE) to enable high-speed data transmission and reception over UTP cable. Functions such as Crossover Detection & Auto-Correction, polarity correction, MDI swap, adaptive equalization, cross-talk cancellation, echo cancellation, timing recovery, RFI protection, thermal management, loopback diagnostic capability, and error correction are implemented in the RTL8221B(I)-VB to provide robust transmission and reception capabilities.
Data transfer between MAC and PHY is via the SERDES (Serializer-Deserializer) interface, which supports SGMII, HiSGMII, and 2500Base-X. The RTL8221B(I)-VB operates at various digital I/O voltages, including 3.3V and 1.8V.

特性 Features

• Compatible with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
• Supports IEEE 802.3bz (2.5GBASE-T)
• Supports IEEE 802.3 optional ability (Energy Efficient Ethernet and Fast Retrain)
• Supports 2.5G Lite (1G data rate) mode
• Compatible with NBASE-TTM Alliance PHY Specification
• Crossover Detection & Auto-Correction
• Supports hardware CRC (Cyclic Redundancy Check) function
• Supports clause 22 and Clause 45 MDC/MDIO management interface
• Selectable SERDES interface to MAC control (SGMII/HiSGMII/2500 BASE-X)
• Supports Interrupt function over UTP
• Supports PHYRSTB core power Turn-Off
• Selectable 3.3/1.8V signaling for MMD access
• Provides 25MHz clock source for MAC
• Self-Loopback diagnostic capability
• 48-pin QFN Green Package
• Complete hardware support for Synchronous Ethernet and Precision Time Protocol (PTP) including IEEE 1588v1, v2, and 802.1AS
• Industrial grade manufacturing process (RTL8221BI-VB/ RTL8221BI-VM)

应用 Application

• DTV (Digital TV)
• MAU (Media Access Unit)
• CNR (Communication and Network Riser)
• Game Console
• Printer and Office Machine
• DVD Player and Recorder
• Ethernet Hub
• Ethernet Switch
• Base Stations and Controllers
• Routers, DSLAMs, PON Equipment
• Test and Measurement Systems
• Industrial and Factory Automation Equipment
• Multimedia synchronization and Real Time Networking