+3.3V, 622Mbps, SDH/SONET 1:4 Deserializer with LVDS Outputs

Low-Power 622Mbps Demux

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The MAX3681 deserializer is ideal for converting 622Mbps serial data to 4-bit-wide, 155Mbps parallel data in ATM and SDH/SONET applications. Operating from a single +3.3V supply, this device accepts PECL serial clock and data inputs, and delivers low-voltage differential-signal (LVDS) clock and data outputs for interfacing with high-speed digital circuitry. It also provides an LVDS synchronization input that enables data realignment and reframing.

The MAX3681 is available in the extended-industrial temperature range (-40°C to +85°C), in a 24-pin SSOP package.
MAX3681: Typical Operating Circuit MAX3681: Typical Operating Circuit Enlarge+

Key Features

  • Single +3.3V Supply
  • 622Mbps Serial to 155Mbps Parallel Conversion
  • 265mW Power
  • LVDS Data Outputs and Synchronization Inputs
  • Synchronization Input for Data Realignment and Reframing
  • Differential 3.3V PECL Clock and Data Inputs


  • 622Mbps ATM/SONET Access Nodes
  • 622Mbps SDH/SONET Transmission Systems
  • Add/Drop Multiplexers
  • Digital Cross-Connects
Product Reliability Reports: MAX3681.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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