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RTL8214B/FB
Integrated 10/100/1000 Quad Gigabit Ethernet Transceiver
 
General Description

The RTL8214B/FB integrates quad independent Gigabit Ethernet transceivers into a single IC. The device performs all the physical layer (PHY) 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 on standard category 3 or 4 cable.

 

This device includes PCS, PMA, and PMD sub-layers. They perform encoding/decoding, clock/data recovery, digital adaptive equalization, echo cancellers, crosstalk elimination, and line driver, as well as other required supporting circuit functions. The device also integrates an internal hybrid that allows the use of inexpensive 1:1 transformer modules.

 

Each of the four independent transceivers features an innovative SGMII/RSGMII/RSGMII-plus/QSGMII for reduced PCB traces. All transceivers can communicate with the MAC simultaneously through the same SGMII/RSGMII/RSGMII-plus/QSGMII interface.

 
Features
  • Quad-port integrated 10/100/1000Base-T Gigabit Ethernet transceiver
  • Each port supports full duplex in 10/100/1000M mode (half duplex is only supported in 10/100M mode)
  • Supports SGMII (1.25Gbps serial high speed interface) in 10/100/1000 mode
  • Supports RSGMII (2.5Gbps serial high speed interface) in 10/100/1000 mode
  • Supports RSGMII-plus (5Gbps serial high speed interface) in 10/100/1000 mode
  • Supports QSGMII (5Gbps serial high speed interface) in 10/100/1000 mode
  • Physical interface supports 1000Base-X
  • Physical interface supports 100Base-FX
  • Supports IEEE 802.3az Energy Efficient Ethernet (EEE)
  • Supports crossover detection and auto correction in 10Base-T/100Base-T
  • Auto-detection and auto-correction of wiring pair swaps, pair skew, and pair polarity
  • Supports Realtek’s Cable Test (RTCT)
  • Supports Realtek’s Green Ethernet
    • Link-Up Power Saving
    • Link-Down Power Saving
  • Low power consumption < 500mW per port
  • Easy layout, good EMI, and good thermal performance
  • 25MHz crystal or 3.3V OSC input
  • 3.3V and 1.05V power supply
  • RTL8214B: LQFP-128 E-PAD package
  • RTL8214FB: TFBGA-292 package

 

Applications
  • SGMII High-Port-Density Gigabit Ethernet Switch; 1000Base-T
  • RSGMII High-Port-Density Gigabit Ethernet Switch; 1000Base-T/1000Base-X or 100Base-FX
  • RSGMII-Plus High-Port-Density Gigabit Ethernet Switch; 1000Base-T/1000Base-X or 100Base-FX
  • QSGMII High-Port-Density Gigabit Ethernet Switch; 1000Base-T/1000Base-X or 100Base-FX

 

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