50MHz to 122.88MHz VCXO

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The DS4077 is an integrated voltage-controlled crystal oscillator (VCXO) module designed to provide reference clock generation in base stations, telecom/datacom, and wireless applications. The DS4077 is developed using a fundamental quartz crystal plus a unique integrated circuit design. The internal fundamental quartz crystal determines the frequency of operation. Custom frequencies are available. Contact the factory for availability.

The DS4077 is designed for use with applications requiring low phase noise and jitter. Jitter performance of better than 0.8ps RMS is achieved over the 12kHz to 20MHz range. Phase noise performance of better than -125dBc/Hz at 1kHz is achieved with this design.
DS4077: Block Diagram DS4077: Block Diagram Enlarge+

Key Features

  • 50MHz to 122.88MHz Frequency
  • 3.135V to 3.465V Operation
  • Low Jitter: < 0.8psRMS
  • ±69ppm Absolute Pull Range (APR)
  • Output Options:
    • LVCMOS Output Buffer
    • LVDS Complementary Output Buffer
  • Minimum ±110ppm Tuning Range (+25°C)
  • 14mm x 9mm x 3.06mm Plastic LGA Package


  • Clock-Data Recovery in Telecom/Datacom Applications
  • Data Retiming
  • Reference Clock Generation in Base Stations and Wireless Applications

Quality and Environmental Data

Request Reliability Report for: DS4077 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

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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