REALTEK 代理商 瑞煜 RTL8221B   2.5G网络芯片

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

? Compatible with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
? Supports IEEE 802.3az (Energy Efficient Ethernet)
? Supports IEEE 802.3bz (2.5GBASE-T)
? Supports Full Duplex flow control (IEEE 802.3x)
? Supports IEEE 802.3 optional ability (Energy Efficient Ethernet and Fast Retrain)
? Integrated 10M BASE-Te and 100M/1000M/2.5GBASE-T IEEE 802.3 compatible transceiver
? Supports 2.5G Lite (1G data rate) mode
? Auto-Negotiation with Extended Next Page capability (XNP)
? Compatible with NBASE-TTM Alliance PHY Specification
? Supports pair swap/polarity/skew correction
? Crossover Detection & Auto-Correction
? Configurable MDI port ordering (MDI swap) for easy PCB layout
? Supports hardware CRC (Cyclic Redundancy Check) function
? Supports power down/link down power saving mode
? Supports clause 22 and Clause 45 MDC/MDIO management interface
? Supports rate adaptor for SerDes
? Selectable SERDES interface to MAC control (SGMII/HiSGMII/2500 BASE-X)
? Built-in Wake-on-LAN (WOL) over UTP
? Supports Interrupt function over UTP
? Supports Parallel Detection
? Supports PHYRSTB core power Turn-Off
? Baseline Wander Correction
? Selectable 3.3/1.8V signaling for MMD access
? Supports 25MHz crystal or external OSC
? Provides 25MHz clock source for MAC
? Provides 3 network customized LEDs with controllable LED Blinking Frequency and Duty Cycle
? Self-Loopback diagnostic capability
? Thermal management on PHY
? 48-pin QFN Green Package
? 22nm process with ultra-low power consumption
? Complete hardware support for Synchronous Ethernet and Precision Time Protocol (PTP) including IEEE 1588v1, v2, and 802.1AS
? Supports SPI Flash (up to 24MB flash size)
? Industrial grade manufacturing process (RTL8221BI-VB/ RTL8221BI-VM)

应用

? 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