The PL903xxx series is a small form factor, high performance OTP-base device and a member of Micrel’s JitterBlocker, factory programmable jitter attenuators. The JitterBlocker product family cleans deterministic jitter by attenuating spurious components in the phase noise, thereby improving the phase jitter and the overall phase noise. The PL903xxx is capable of reducing multiple pico seconds of phase jitter in a clock to a level below 1psRMS, making that clock usable for many more applications.The PL903xxx operates on a single 2.5V or 3.3V supply and is housed in a small QFN package for a broad range of applications.Input clock frequencies up to 200MHz can be filtered and frequency translation allows for output clock frequencies up to 840MHz.



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• Lowest-power, smallest programmable jitter attenuator
• Input frequency up to 200MHz
• Output frequency up to 840MHz
• Jitter attenuation 20dB at 3MHz spur frequency
• Additive phase jitter or phase jitter floor:
  • 55fs for 1.875MHz to 20MHz
  • 251fs for 12kHz to 20MHz
• Single ended CMOS input
• One differential or two single ended outputs. Output logic types supported are LVPECL, LVDS, HCSL and LVCMOS (single ended or differential).
• Operating temperature range from –40°C to +85°C
• Available in 24-pin QFN RoHS-compliant package
• Related devices:
  • PL902xxx: LVCMOS, period jitter cleaning
  • PL904xxx: Differential input, two differential outputs, and phase noise cleaning