MAX3982

SFP Copper-Cable Preemphasis Driver

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Status Explanations for product status codes

Active: In Production.

Description

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.
 

Data Sheet

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An evaluation kit is available: MAX3982EVKIT

Key Features

  • 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
 

Applications/Uses

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

Key Specifications:

Equalizers (Cable and Circuit Board)
Part Number Applications Data Rate
(Mbps)
Data Rate
(Mbps)
Max. Reach @ Max. Data Rate VSUPPLY
(V)
I/O Type Channels Rx Eq. @ Max. Rate
(dB)
Tx Eq. @ Max. Rate
(dB)
Package/Pins Smallest Available Pckg.
(mm2)
Oper. Temp.
(°C)
Budgetary Price
min max typ typ max w/pins See Notes
MAX3982 
Copper Cable Interconnect
Ethernet
Fibre Channel
InfiniBand
Printed Circuit Board Interconnect
SDH/ SONET/ DWDM/ ATM/ PONs
XAUI
1000 4250
1m FR4
15m Cable
3.3 CML 1 12 14
TQFN/16
9.6 0 to +85 $6.13 @1k
See All Equalizers (Cable and Circuit Board) (21)
Pricing 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

MAX3982: Typical Operating Circuit
Typical Operating Circuit

More Information

Topmark Coding MAX3982

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Information Index

Document Ref.: 19-3354 Rev 2; 2006-10-26
This page last modified: 2008-04-30




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