MAX3270

155Mbps/622Mbps Clock Recovery and Data Retiming IC with Fully Integrated Phase Frequency Detector

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Status Explanations for product status codes

Part Number Status Replacement
MAX3270 This product is No Longer Available. See Ordering Information for recommended replacements.MAX3676
 

Description

The MAX3270 is a complete Clock Recovery and Data Retiming IC for 155Mbps and 622Mbps SDH/SONET and ATM applications. The MAX3270 meets Bellcore and CCITT jitter tolerance specifications ensuring error-free data recovery. Recovered clock and data are phase aligned using a fully integrated phase-locked loop (PLL). An output frequency monitor (FM) is included to detect loss of PLL acquisition or a loss of input data.

The MAX3270 has differential ECL input and output interfaces, so it is less susceptible to noise in a high-frequency environment. The fully integrated PLL includes an integrated phase-frequency detector that eliminates the need for external references.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 1 (PDF, 264kB)
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Key Features

      Supports Both 155Mbps and 622Mbps Clock Recovery and Data Retiming
    • Fully Integrated Phase/Frequency Detector
    • Capable of Switching to an External Clock
    • Differential 100K ECL Data and Clock I/Os
    • Output Monitor Provides Lock Detection
    • No External Reference Clock Required
 

Applications/Uses

  • 155Mbps (STM-1/OC-3) SDH/SONET Transmission Systems
  • 155Mbps/622Mbps ATM/SONET Access Nodes
  • 622Mbps (STM-4/OC-12) SDH/SONET Transmission Systems
  • Add/Drop Multiplexers
  • Cross-Connects
   

Diagram

MAX3270: Typical Operating Circuit
Typical Operating Circuit

Reliability Reports

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Software/Models

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Ordering Information

Filters: Part Number: Package: Temperature: Tape and Reel Sample
Part Number Free
Sample
Buy Status Explanations for product status codes Recommended Replacement Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR *
Temp RoHS/Lead-Free?
Materials Analysis
MAX3270EMH     N/A No Longer Available MAX3676

 
MQFP;44 pin;204.5 mm²
Outline Drawing:21-0826 (PDF)
Land Pattern: 90-0169 (PDF)
Use pkgcode/variation: M44-5*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX3270EMH-T     N/A No Longer Available MAX3676

 
MQFP;44 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet

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; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product 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.

Notes and Comments

Selectable data rate, fully integrated PLL, no external reference clock required


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Document Ref.: 19-0379 Rev 1; 2000-09-21
This page last modified: 2007-05-30


 


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