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The SiT8209 is a high-frequency, ultra-performance oscillator for telecom, networking, storage and wireless applications.  It is the industry's first MEMS oscillator to deliver 500 femtoseconds of typical integrated RMS phase jitter (12 kHz to 20 MHz) and ±10 ppm frequency stability across all temperature ranges. This device has a rich set of configurable features, such as any frequency between 80 to 220 MHz and is available with extremely short lead time to ensure the fastest time-to-market. With FlexEdge™ technology for EMI reduction, the SiT8209 improves system performance. The SiT8209 is 100% compatible with legacy quartz, SAW and overtone oscillators in footprint and package, and replaces these devices without any design changes.


FlexEdgeTM Rise/Fall Time
80 to 220 MHz
Frequency Stability (ppm)
±10, ±20, ±25, ±50
Operating Temperature Range (°C)
-20 to +70, -40 to +85
Oscillator Type
Output type
Package Type (mm²)
2.5x2.0, 3.2x2.5, 5.0x3.2, 7.0x5.0
Phase Jitter (RMS)
0.5 ps
Field programmable, Low jitter
Voltage Supply (V)
1.8, 2.5 to 3.3
  • Computer servers
  • Data centers
  • Raid controllers
  • Routers
  • Switches
  • Telecom equipment
  • Fibre channel
  • 10G Ethernet
  • DDR


Features & Benefits

<1 ps RMS integrated phase jitter (12 kHz to 20 MHz)

  • Great jitter margin for the most stringent applications such as SONET

Excellent frequency stability, as low as ±10 ppm

  • Better timing margin that enhances system stability and robustness

Extensive programmability

  • Frequency from 80.000001 to 220
  • Supply voltage of 1.8 V; 2.5 V to 3.3 V
  • Frequency stability from ±10 ppm to ±50 ppm
  • Customized specification for optimal system performance
  • Easy availability of any device specifications within the operating range

Configurable drive strength using FlexEdge technology

  • Slower rise/fall time that minimizes EMI from the oscillator
  • Saves cost by driving multiple loads and eliminate additional timing components

Three industry-standard packages

  • 100% drop-in replacement for quartz VCXO without any design changes

4 to 6 weeks lead time

  • Reduce inventory overhead
  • Mitigate shortage risks


Quality Documents

Additional Resources