SiTime, Silicon MEMS Oscillators and Clock Generators

SiT3701: Smallest Programmable Voltage-Controlled MEMS Oscillator

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The SiT3701 is the smallest programmable voltage-controlled MEMS oscillator with an LVCMOS or LVTTL compatible output. It provides superior pull range linearity over the standard quartz-based VCXO that simplifies clock synchronization algorithm design.



Frequency Range (MHz) 1 – 110
Pull Range (PPM) ±30, ±60, ±120, ±240
Temp Range (°C) -20 to +70, -40 to +85
Supply Voltage (V) 1.8, 2.5, 2.8, 3.3
Package LxWxH (mm) 2.5x2.0x0.75, 3.2x2.5x0.75, 5.0x3.2x0.75, 7.0x5.0x0.9
Status Full Production
  • Low bandwidth analog phase locked loop (PLL)
  • Instrumentation
  • Set-top Box
  • DTV
  • DVD-R
  • Video phone and conferencing systems
  • Networked surveillance systems
  • Communication and networking equipment

Features Benefits
  • 0.5% linear pull range
  • Simplifies clock synchronization algorithm design
  • Improves system lock time and overall stability
  • Extensive programmability
    • Frequency between 1 to 110MHz with 5 decimal place accuracy
    • Supply voltage of 1.8V, 2.5V, 2.8V and 3.3V
    • Frequency stability from ±20PPM to ±50PPM
    • Pull range of ±30PPM, ±60PPM, ±120PPM and ±240PPM
  • Customize specification for optimal system performance
  • Re-use of the same base product for many designs
  • Ultra fast lead time (3-5 weeks)
  • Reduce inventory overhead
  • Mitigate shortage risks


6. Contact SiTime for different drive strength options for driving higher loads or reducing EMI.
7. Without Center Pad.

Supply Voltage Buffer Type Resource Type File
1.8V LVCMOS IBIS iconSiT3701_1p8v
2.5V LVCMOS IBIS iconSiT3701_2p5v
2.8V LVCMOS IBIS iconSiT3701_2p8v
3.3V LVCMOS IBIS icon SiT3701_3p3v