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MAX3668
+3.3V, 622Mbps SDH/SONET Laser Driver with Automatic Power Control

Lowest-Power 622Mbps Laser Driver


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 760kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX3668† 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 of -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 of 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.

The MAX3668 also provides enable control and a failure-monitor output to indicate when the APC loop is unable to maintain the average optical power. The MAX3668 is available in a 5mm 32-pin TQFP package as well as in dice.

An evaluation kit is available:  MAX3668EVKIT  

Key Features   Applications/Uses
  • Single +3.3V or +5.0V Operation
  • 38mA Supply Current at +3.3V
  • Programmable Modulation Current from 5mA to 75mA
  • Programmable Bias Current from 1mA to 80mA
  • Rise/Fall Time < 200ps
  • Automatic Average Power Control with Failure Monitor
  • Complies with ANSI, ITU, and Bellcore SONET/SDH Specifications
  • Enable Control

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

    Key Specifications:  Laser Drivers
    Part Number Target Oper. Range
    (Gbps)    		 Data Rate
    (Mbps)    		 Data Rate
    (Mbps)    		 VSUPPLY
    (V)    		 ICC
    (mA)    		 I/O Type IMOD
    (mA)    		 IBIAS
    (mA)    		 EV Kit Package/Pins Price
    min max typ max max See Notes
    MAX3668  <1 155 622
    3.3
    5
    		 38 PECL 75 80 Yes
    TQFP/32
    		 $5.20 @1k
    See All Laser Drivers (24)

    †Covered by U.S. Patent numbers 5,802,089 and 5,883,910

    Diagram
    MAX3668: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 596: HFAN-02.2.0: Extinction Ratio and Power Penalty - MAX3668

    Evaluation Kits
  		• MAX3668EVKIT

    Design Guides
  		• Fiber (PDF)

    Reliability Reports
  		• Reliability Report: MAX3668.pdf
  		• Show FIT data for:

    Software/Models
  		• MAX3668EHJ IBIS Model

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-5 of 5

    MAX3668 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3668E/D    
    		Active DICE SALES;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: DICE12*
    		See data sheet
    MAX3668EHJ    
    		Active TQFP;32 pin;52 mm²
    Outline Drawing: 21-0110 (PDF)
    Land Pattern: 90-0149 (PDF)
    Use pkgcode/variation: H32-2F*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3668EHJ-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX3668EHJ+  
    		Active TQFP;32 pin;52 mm²
    Outline Drawing: 21-0110 (PDF)
    Land Pattern: 90-0149 (PDF)
    Use pkgcode/variation: H32+2F*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3668EHJ+T    
    		Active TQFP;32 pin;52 mm²
    Outline Drawing: 21-0110 (PDF)
    Land Pattern: 90-0149 (PDF)
    Use pkgcode/variation: H32+2F*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    Related Products
    MAX3690 +3.3V, 622Mbps SDH/SONET 8:1 Serializer with Clock Synthesis and TTL Inputs
    MAX3693 +3.3V, 622Mbps SDH/SONET 4:1 Serializer with Clock Synthesis and LVDS Inputs
    MAX3669 +3.3V, 622Mbps SDH/SONET Laser Driver with Current Monitors and APC

    More Like This: View Product Families for Similar Products

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     Description 
     Key Features 
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     Diagram 

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     Engineering Journals 
     Reliability Reports 
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    Document Ref.: 19-4799; Rev 4; 2005-03-16
    This page last modified: 2008-01-15


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