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MAX3645
+2.97V to +5.5V, 125Mbps to 200Mbps Limiting Amplifier with Loss-of-Signal Detector

3V to 5.5V, 200Mbps Limiting Amplifier with LOS Detector


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 240kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


Description
The MAX3645 limiting amplifier functions as a data quantizer and is pin compatible with the Mindspeed MC2045-2 and MC2045-2Y postamplifiers. The amplifier accepts a wide range of input voltages and provides constant-level positive emitter-coupled logic (PECL) output voltages with controlled edge speeds.

The MAX3645 features an integrated power detector with complementary PECL loss-of-signal (LOS) outputs that indicate when the input power level drops below a programmable threshold. An optional squelch function holds the data outputs at static levels during a LOS condition.

The MAX3645 operates from a single +3.3V or +5.0V power supply over a -40°C to +85°C temperature range. It is available in 16-pin SO and 16-pin QSOP packages.

An evaluation kit is available:  MAX3645EVKIT  

Key Features   Applications/Uses
  • Pin Compatible with the Mindspeed MC2045-2/MC2045-2Y
  • 500µV Input Sensitivity (BER = 10-12)
  • Compatible with 4B/5B Data Coding
  • Programmable LOS Threshold
  • Stable LOS Threshold Over Supply Range
  • Output Disable Function and Automatic Squelch
  • Single +3.3V or +5.0V Power Supply
  • 18mA Supply Current

 
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    Key Specifications:  Limiting Amplifiers
    Part Number Target Oper. Range
    (Gbps)
    Data Rate
    (Mbps)
    Data Rate
    (Mbps)
    VSUPPLY
    (V)
    ICC
    (mA)
    I/O Type Input Sens.
    (mV)
    LOS Sens.
    (mV)
    Edge Speed
    (ps)
    EV Kit Package/Pins Smallest Available Pckg.
    (mm2)
    Price
    min max typ min max max w/pins See Notes
    MAX3645  <1 155 200
    3.3
    5
    18 PECL 1 2 1400 Yes
    QSOP/16
    SOIC(N)/16
    31 $1.80 @1k
    See All Limiting Amplifiers (17)

    Diagram
    MAX3645: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  • Application Note 2931: HFTA-09.0: T3/E3/STS-1 Fiber Optic Extension - MAX3645
  • Application Note 2946: MAX3645: Using the MAX3645 as a Pin-for-Pin Replacement of the Mindspeed MC2045-2/2Y - MAX3645

    Evaluation Kits
  • MAX3645EVKIT

    Design Guides
  • Fiber (PDF)
  • Communications (PDF)

    Reliability Reports
  • Reliability Report: MAX3645.pdf
  • Show FIT data for:

    Software/Models
  • MAX3645EEE 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: 1-8 of 8

    MAX3645 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3645EEE    
    Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3645EEE-T    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet
    MAX3645EEE+  
    Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3645EEE+T    
    Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3645ESE    
    Active SOIC(N);16 pin;62 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0097 (PDF)
    Use pkgcode/variation: S16-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3645ESE-T    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet
    MAX3645ESE+  
    Active SOIC(N);16 pin;62 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0097 (PDF)
    Use pkgcode/variation: S16+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3645ESE+T    
    Active SOIC(N);16 pin;62 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0097 (PDF)
    Use pkgcode/variation: S16+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  • New Product Press Release 2003-11-06 

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    Document Ref.: 19-3026; Rev 1; 2004-12-14
    This page last modified: 2007-08-21


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