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RTL8212F/RTL8212G
Integrated Dual 10/100/1000Base-T and 1000Base-X/100Base-FX Gigabit Ethernet Transceiver
 
General Description

The RTL8212F/RTL8212G integrates dual independent gigabit Ethernet transceivers (PHY) and dual gigabit SerDes into a single IC. The device performs all the physical layer functions for 1000Base-T, 100Base-TX, and 10Base-T Ethernet on category 5 UTP cable, except 1000Base-T half duplex. 10Base-T functionality can also be achieved over standard category 3 or 4 cable.

With gigabit SerDes, the RTL8212F/RTL8212G also supports 1000Base-X/100Base-FX and it can be connected directly to a fiber-optical transceiver. The RTL8212F/RTL8212G supports fiber/copper dual media for combo link applications.

This device perform encoding/decoding, clock/data recovery, digital adaptive equalization, echo cancellers, crosstalk elimination, and line driver, as well as other required supporting circuit functions. An integrated internal hybrid allows the use of inexpensive 1:1 transformer modules. Each of the two independent transceivers features an industrial standard SGMII/RGMII/GMII/MII for glueless connection with Ethernet MACs. The two SerDes, acting as 1000Base-X/100Base-FX fiber ports, support SGMII/RGMII (RTL8212F) and SGMII/RGMII/GMII/MII (RTL8212G).

The RTL8212F/RTL8212G adopts mixed mode 0.13µm CMOS technology and analog line driver architecture, and is offered in thermally-enhanced 128/164-pin LQFP-EPAD packages. Enhanced ‘Green’ power-saving features allow very low power consumption.

 
Features
  • Dual integrated 10/100/1000Base-T Gigabit Ethernet transceiver
  • Dual integrated Gigabit SerDes supporting SGMII and 1000Base-X/100Base-FX
  • RTL8212F supports RGMII/SGMII. RTL8212G supports RGMII/SGMII/GMII/MII
  • Supports full duplex in 10/100/1000 speed and half duplex in 10/100 speed
  • Crossover detection and auto correction in all speeds
  • Physical layer Polarity Detection and Correction function
  • Line driver architecture with low power dissipation
  • Supports Realtek’s Green Ethernet power saving mode
  • Supports cable diagnostic function
  • Supports serial and parallel LED mode
  • Supports jumbo packets up to 16KB
  • 3.3V and 1.2V power supply
  • 0.13µm CMOS process
  • Packages:
    • RTL8212F-GR: LQFP-128 E-PAD
    • RTL8212G-GR: LQFP-164 E-PAD
Applications
  • Gigabit Ethernet switch
  • Gigabit Ethernet routers
  • Copper/Fiber combo links

 

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