SM802120 ClockWorks™ Frequency Synthesizer

125 MHz LVDS/125 MHz HCSL ultra-low jitter frequency synthesizer from Microchip

Image of Micrel's SM802120 ClockWorks™ Frequency SynthesizerThe SM802120 is a member of the ClockWorks™ family of devices from Microchip and provides an extremely low-noise timing solution. It is based upon a unique patented RotaryWave® architecture that provides very low phase noise.

The device operates from a 3.3 V or 2.5 V power supply and synthesizes eight differential 125 MHz output clocks, six LVDS, and two HCSL. The SM802120 accepts a 25 MHz crystal input.


  • Generates six LVDS 125 MHz clocks and two HCSL 125 MHz clocks
  • Typical phase jitter at 125 MHz (1.875 MHz to 20 MHz): 100 fs
  • 2.5 V or 3.3 V operating range
  • Industrial temperature range (–40°C to +85°C)
  • Green, RoHS, and PFOS compliant
  • Available in 44-pin 7 mm x 7 mm QFN package

SM802120 ClockWorks Freq Synthesizer

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
SM802120UMG-TR datasheet linkIC SYNTHESIZER 125MHZ 44QFNSM802120UMG-TRIC SYNTHESIZER 125MHZ 44QFN1000 - Immediate
SM802120UMG-TR product page link
SM802120UMG datasheet linkIC SYNTHESIZER 125MHZ 44QFNSM802120UMGIC SYNTHESIZER 125MHZ 44QFN230 - Immediate
SM802120UMG product page link
Published: 2012-06-29