SiTime, Silicon MEMS Oscillators and Clock Generators

SiT1576 Super-TCXO

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 SiTime's TempFlat MEMS(TM) technology enables the first 32 kHz TCXO in a 1.2mm2 chip-scale package, the world's smallest footprint. Typical core supply current is only 1μA.  And unlike standard oscillators, the SiT1576 features NanoDrive™, a factory programmable output that reduces voltage swing to minimize power. The SiT1576 is factory calibrated over multiple temperature points to guarantee extremely tight frequency stability from ±10 ppm to ±20 ppm (initial + over temperature).

Video Demo Watch dynamic frequency over temperature: The SiT1552 is placed in temperature chamber that increases temp from < -40 to +85°C at a fast ramp rate of 4 degrees per second.




Frequency (kHz) 32.768
Frequency Stability (PPM)
 ±10, ±20
Temp Range (°C) 0 to +70, -40 to +85
Supply Voltage (V) 1.5 to 3.63
NanoDrive™ Reduced Swing Programmable Output Range 200 mV to 800 mV or rail-to-rail LVCMOS
Package LxWxH (mm) 1.5 x 0.8 x 0.6
Status Production
  • Smart Meters (AMR)
  • Health & Wellness Monitors
  • Pulse-per-Second Timekeeping

Features Benefits
  • ±5 ppm frequency stability over temperature
  • Improved local timekeeping and improved system power with less dependency on network timekeeping updates with mobile and wearable devices
  • Smallest footprint in chip-scale (CSP): 1.5 x 0.8 mm
  • Saves board space
  • Ultra-low power: 990 nA (typ)
  • Maximizes battery life
  • NanoDrive™ reduced swing oscillator output
  • Programmable ouput swing minimizes power
  • Internal VDD supply filtering
  • Eliminates external VDD bypass capacitor to maintain ultra-small footprint



Part number characters in blue represent the customer specific options. The other characters in the part number are fixed.



Reliability Report Composition Reports
Available May 2016
icon WLCSP Package Composition Report