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+3.3V, 2.5Gbps SDH/SONET Laser Driver with Automatic Power Control

High-Performance Laser Driver

Product Details

Key Features

Simplified Block Diagram

Technical Docs

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Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Key Features

  • Single +3.3V or +5V Power Supply
  • 62mA Supply Current at +3.3V
  • Programmable Modulation Current from 5mA to 60mA
  • Programmable Bias Current from 1mA to 100mA
  • Rise/Fall Time < 90ps
  • Automatic Average Power Control with Failure Monitor
  • Complies with ANSI, ITU, and Bellcore SDH/SONET Specifications
  • Enable Control

Applications/Uses

  • 2.5Gbps Optical Transmitters
  • Add/Drop Multiplexers
  • Digital Cross-Connects
  • Section Regenerators
  • SONET/SDH Transmission Systems

Description

The MAX3867 is a complete, single +3.3V laser driver for SDH/SONET applications up to 2.5Gbps. The device accepts differential PECL data and clock inputs and provides bias and modulation currents for driving a laser. The synchronizing input latch can be bypassed if a clock signal is not available.

An automatic power control (APC) feedback loop is incorporated to maintain a constant average optical power over temperature and lifetime. The wide modulation current range of 5mA to 60mA and bias current of 1mA to 100mA are easy to program, making this product ideal for use in various SDH/SONET applications.

The MAX3867 also provides enable control, a programmable slow-start circuit to set the laser turn-on delay, and a failure-monitor output to indicate when the APC loop is unable to maintain the average optical power. The MAX3867 is available in a small 48-pin TQFP package as well as dice.

Simplified Block Diagram

MAX3867: Typical Operating Circuit MAX3867: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.