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

Product Details

Key Features

Applications/Uses

Simplified Block Diagram

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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

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.

Simplified Block Diagram

MAX3270: Typical Operating Circuit MAX3270: 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 .