The 853S011BI is a low skew, high performance 1-to-2 Differential-to-2.5V/3.3V LVPECL/ECL Fanout Buffer. The 853S011BI is characterized to operate from either a 2.5V or a 3.3V power supply. Guaranteed output and part-to-part skew characteristics make the 853S011BI ideal for those clock distribution applications demanding well defined performance and repeatability.


  • Two differential 2.5V, 3.3V LVPECL/ECL outputs
  • One differential PCLK, nPCLK input pair
  • PCLK, nPCLK pairs can accept the following differential input levels: LVPECL, LVDS, CML, SSTL
  • Maximum output frequency: >2.5GHz
  • Translates any single-ended input signal to 3.3V LVPECL levels with resistor bias on nPCLK input
  • Output skew: 5ps (typical)
  • Part-to-part skew: 130ps (maximum)
  • Propagation delay: 355ps (maximum)
  • LVPECL mode operating voltage supply range: VCC = 2.375V to 3.8V, VEE = 0V
  • ECL mode operating voltage supply range: VCC = 0V, VEE = -3.8V to -2.375V
  • -40°C to 85°C ambient operating temperature
  • Available lead-free (RoHS 6) package




Design & Development