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MAX3980
3.125Gbps XAUI Quad Equalizer

Achieve Clean 3.125Gbps XAUI Interfaces over 40in Backplanes


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Description
FULL DATA SHEET (PDF, 448kB)
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The MAX3980 quad equalizer provides compensation for transmission medium losses for four "lanes" of digital NRZ data at a 3.125Gbps data rate in one package. It is tailor-made for 10-Gigabit Ethernet (10GbE) backplane applications requiring attenuation of noise and jitter that occur in communicating from MAC to PMD or from MAC to Switch. In support of the IEEE®-802.3ae for the XAUI interface, the MAX3980 adaptively allows XAUI lanes to reach up to 40in (1.0m) on FR4 board material.

The equalizer has 100Ω differential CML data inputs and outputs.

The MAX3980 is available in a 44-pin exposed-pad QFN package. The MAX3980 consumes only 700mW at +3.3V or 175mW per channel.

Key Features   Applications/Uses
  • Four Differential Digital Data "Lanes" at 3.125Gbps
  • Spans 40in (1.0m) of FR4 PC Board
  • Receiver Equalization Reduces Intersymbol Interference (ISI)
  • Low-Power, 175mW per Channel
  • Standby Mode—Power-Down State
  • Single +3.3V Supply
  • Signal Detect

 
  • IEEE-802.3ae XAUI Interface (3.125Gbps)
  • InfiniBand® (2.5Gbps)

    Key Specifications:   Equalizers (Cable and Circuit Board)
    Part Number Min. Data Rate (Mbps) Max. Data Rate (Mbps) Max. Reach @ Max. Data Rate Supply Voltage (V) I/O Type Channels Per Part Typ. Rx Eq. @ Max. Rate (dB) Package Operating Temp. Range (°C) Price**
    MAX3980  2500 3125 1m FR4
    7m Cable
    3.3 CML 4 14 QFN/44
    THIN QFN/44
    0 to +85 $14.99 @ 1k
    See All Equalizers (Cable and Circuit Board) (18)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Diagram
    MAX3980: Typical Application Circuit
    Typical Application Circuit

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    Document Ref.: 19-2153; Rev 3; 2008-12-15
    This page last modified: 2008-12-15



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