ADN2841

NOT RECOMMENDED FOR NEW DESIGNS

Dual-Loop, 50 Mbps to 2.7 Gbps Laser Diode Driver

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Overview

  • 50 Mbps to 2.7 Gbps operation
  • Typical rise/fall time: 80 ps
  • Bias current range: 2 mA to 100 mA
  • Modulation current range: 5 mA to 80 mA
  • Monitor photodiode current: 50 μA to 1200 μA
  • Closed-loop control of power and extinction ratio
  • Laser fail and laser degrade alarms
  • Automatic laser shutdown (ALS)
  • Dual MPD functionality for DWDM
  • Optional clocked data
  • Full current parameter monitoring
  • 5 V operation
  • 48-lead LFCSP
  • 32-lead LFCSP (reduced functionality)

The ADN2841 uses a unique control algorithm to control both the average power and extinction ratio of the laser diode (LD) after initial factory setup. Because power and extinction ratio control are fully integrated, external component count is low and PCB area is small. Programmable alarms are provided for laser fail (end of life) and laser degrade (impending fail).

The ADN2841 has circuitry for a second monitor photodiode, which enables DWDM wavelength control.

Applications

  • DWDM dual MPD wavelength fixing
  • SONET OC-1/3/12/48
  • SDH STM-1/4/16
  • Fibre Channel
  • Gigabit Ethernet

ADN2841

Dual-Loop, 50 Mbps to 2.7 Gbps Laser Diode Driver

ADN2841 Functional Block Diagram ADN2841 Pin Configuration ADN2841 Pin Configuration
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Evaluation Kits

EVAL-ADN2841

ADN2841 Evaluation Board

Product Details

This page contains evaluation board documentation and ordering information for evaluating this product.

EVAL-ADN2841
ADN2841 Evaluation Board

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