MAX3669

NOT RECOMMENDED FOR NEW DESIGNS

+3.3V, 622Mbps SDH/SONET Laser Driver with Current Monitors and APC

Low-Power, Full-Featured 622Mbps Laser Driver

Data Sheet (Rev. 6) Product Selection Table
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Overview

  • +3.3V or +5.0V Single-Supply Operation
  • 40mA Supply Current at +3.3V
  • Programmable Bias Current from 1mA to 80mA
  • Programmable Modulation Current from 5mA to 75mA
  • Bias Current and Modulation Current Monitors
  • 200ps Rise/Fall Time
  • Automatic Average Power Control with Failure Monitor
  • Complies with ANSI, ITU, and Bellcore SONET/SDH Specifications
  • Enable Control

The MAX3669 is a complete, +3.3V laser driver with automatic power control (APC) circuitry for SDH/SONET applications up to 622Mbps. It accepts differential PECL inputs, provides bias and modulation currents, and operates over a temperature range from -40°C to +85°C.

An APC feedback loop is incorporated to maintain a constant average optical power over temperature and lifetime. The wide modulation current range from 5mA to 75mA and bias current of 1mA to 80mA are easy to program, making this product ideal for use in various SDH/SONET applications. Two pins are provided to monitor the current levels in the laser: BIASMON with current proportional to laser bias current, and MODMON with current proportional to laser modulation.

The MAX3669 also provides enable control and a failure-monitor output to indicate when the APC loop is unable to maintain the average optical power. The MAX3669 is available in 4mm x 4mm 24-pin thin QFN and 5mm x 5mm 32-pin TQFP packages.

Applications

  • 622Mbps SDH/SONET Access Nodes
  • Laser Driver Transmitters
  • Section Regenerators
MAX3669
+3.3V, 622Mbps SDH/SONET Laser Driver with Current Monitors and APC
MAX3669: Typical Application Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Application Note 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Interface Transceivers & Isolators 1
MAX3690
+3.3V, 622Mbps SDH/SONET 8:1 Serializer with Clock Synthesis and TTL Inputs
Interface Transmitters 1
MAX3668
+3.3V, 622Mbps SDH/SONET Laser Driver with Automatic Power Control
Serializer/Deserializer (SerDes) & Gigabit Multimedia Serial Link (GMSL) 1
MAX3693
+3.3V, 622Mbps SDH/SONET 4:1 Serializer with Clock Synthesis and LVDS Inputs
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Evaluation Kits

MAX3669EVKIT

Evaluation Kit for the MAX3669

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Features and Benefits

  • Fully Assembled and Tested
  • +3.3V or +5V Operation
  • On-Board Input Termination
  • Independent Electrical Monitoring of Modulation and Bias Currents

Product Details

The MAX3669 evaluation kit (EV kit) is an assembled demonstration board that provides easy optical or electrical evaluation of the MAX3669, a 622Mbps laser driver with current monitors and automatic power control (APC) circuitry. Although the MAX3669 EV kit is shipped in the electrical configuration, this EV kit also provides configuration instructions for optical operation.

Applications

  • 622Mbps SDH/SONET Access Nodes
  • Laser Driver Transmitters
  • Section Regenerators

MAX3669ETGEVKIT

Evaluation Kit for the MAX3669ETG

Buy Now View Details

Features and Benefits

  • Fully Assembled and Tested
  • +3.3V or +5V Operation
  • On-Board Input Termination
  • Independent Electrical Monitoring of Modulation and Bias Currents

Product Details

The MAX3669ETG evaluation kit (EV kit) is an assembled demonstration board that provides easy optical or electrical evaluation of the MAX3669ETG, a 622Mbps laser driver with current monitors and automatic power control (APC) circuitry. Although the MAX3669ETG EV kit is shipped in the electrical configuration, this EV kit also provides configuration instructions for optical operation.

Applications

  • 622Mbps SDH/SONET Access Nodes
  • Laser Driver Transmitters
  • Section Regenerators
MAX3669EVKIT
Evaluation Kit for the MAX3669
MAX3669ETGEVKIT
Evaluation Kit for the MAX3669ETG

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