MAX3982

NOT RECOMMENDED FOR NEW DESIGNS

SFP Copper-Cable Preemphasis Driver

Data Sheet (Rev. 2) Product Selection Table
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Overview

  • Drives Up to 15m with 24AWG Cable
  • Drives Up to 30in of FR4
  • 0.25W Total Power with +3.3V Supply
  • Selectable 1600mVP-P or 1200mVP-P Differential Output Swing
  • Selectable Output Preemphasis
  • Fixed Input Equalization
  • Loss-of-Signal Detection with Selectable Sensitivity
  • Transmit Disable

The MAX3982 is a single-channel, copper-cable preemphasis driver that operates from 1Gbps to 4.25Gbps. It provides compensation for copper links, such as 4.25Gbps Fibre Channel, allowing spans of up to 15m with 24AWG. The cable driver provides four selectable preemphasis levels. The input compensates for up to 10in of FR4 circuit board material at 4.25Gbps.

The MAX3982 also features SFP-compliant loss-of-signal detection with selectable sensitivity and TX_DISABLE. Selectable output swing reduces EMI and power consumption. It is packaged in a 3mm x 3mm, 16-pin thin QFN and operates from 0°C to +85°C temperature range.

Applications

  • 1.0625Gbps, 2.125Gbps, and 4.25Gbps Fibre Channel
  • 1.25Gbps Ethernet
  • 2.488Gbps STM16
  • Backplanes
  • InfiniBand™
  • PCI Express®
  • SFP Active Copper-Cable Assemblies
MAX3982
SFP Copper-Cable Preemphasis Driver
MAX3982: Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 2

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Hardware Ecosystem

Parts Product Life Cycle Description
Interface Transceivers & Isolators 1
MAX3784A
5Gbps PCB Equalizer
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Evaluation Kits

MAX3982EVKIT

Evaluation Kit for the MAX3982

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Features and Benefits

  • Fully Assembled and Tested
  • Easy Selection of Operating Modes

    • Product Details

    The MAX3982 evaluation kit (EV Kit) is an assembled demonstration board that provides electrical evaluation of the MAX3982 SFP Copper-Cable Preemphasis Driver. All control inputs are adjustable by jumpers, and LOS is available through a test point.

    Applications

    • 1.0625Gbps, 2.125Gbps, and 4.25Gbps Fibre Channel
    • 1.25Gbps Ethernet
    • 2.488Gbps STM16
    • Backplanes
    • InfiniBand™
    • PCI Express®
    • SFP Active Copper-Cable Assemblies
    MAX3982EVKIT
    Evaluation Kit for the MAX3982

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