Ultra-Small µPower, Low-Jitter, 1 Hz to 2.5 MHz TCXO


SiTime's TempFlat MEMS™ technology and mixed-signal design expertise enables the first µPower TCXO in a 1.2 mm2 chip-scale package - the world's smallest footprint. Typical core supply current is only 6.0 μA at 100 kHz. And unlike standard oscillators, the SiT1576 Super-TCXO is factory-programmable between 1 Hz and 2.5 MHz. This unique, ultra-small TCXO enables new architectural options with its wide frequency range. The SiT1576 is factory-calibrated over multiple temperature points to guarantee extremely tight frequency stability as low as ±5 ppm (initial and over temperature).

Video Demo: The SiT15xx TCXO is placed in temperature chamber that increases temp. from < -40 to +85 °C at a fast ramp rate of 4 degrees per second.


World's smallest TCXO in tiny 1508 chip-scale package, low-jitter, consumes only 1.2 mm2 board space
"Specs" "Value"
Oscillator Type Hz to MHz TCXO
Frequency 1 Hz to 2.5 MHz
Frequency Stability (ppm) ±5, ±20
Output Type LVCMOS
Operating Temperature Range (°C) -20 to +70, -40 to +85
Voltage Supply (V) 1.62 to 3.63
Package Type (mm²) 1.5x0.8
Features Low jitter
Availability Production

Factory programmable frequency: 1 Hz to 2.5 MHz

  • Optimized for low-power architectural alternatives

Ultra-low power: 4.5 µA (typ.) at 33 kHz, 6.0 µA (typ.) at 100 kHz

  • Maximizes battery life

Smallest footprint in chip-scale (CSP): 1.5 x 0.8 mm

  • Saves board space

±5 ppm all-inclusive frequency stability

  • Improved local timekeeping and improved system power with less dependency on network timekeeping updates with mobile and wearable devices

Internal VDD supply filtering

  • Eliminates external VDD bypass capacitor to maintain ultra-small footprint


  • Smart meters
  • Health and wellness monitors
  • Analog front-end (AFE) reference clocks
  • Industrial sensors
  • 医疗电子产品
  • 远程感测
  • 手机附件
  • 眼镜

Narrow By:

Document Name Type
WLCSP Package Composition Reports (SiT156X, SiT1576) Composition Reports
Electronics Industry Citizen Coalition Template Other Quality Documents
Manufacturing Notes for SiTime Products Other Quality Documents
SiTime Conflict Minerals Policy Other Quality Documents
SiTime Environmental Policy Other Quality Documents
SiTime Warranty on Date Code Other Quality Documents
ISO9001:2015 Certificate of Registration Other Quality Documents
Conflict Minerals Reporting Template Other Quality Documents
SiTime Oscillator Reliability Report (0.18 micron CMOS process products) Reliability Reports
SiT156X, SiT1576 Product Qualification Report Reliability Reports
TSMC Wafer SGS Report RoHS/Reach/Green Certificates
Tower Jazz Wafer SGS Report RoHS/Reach/Green Certificates
4L/6L-QFN Package Homogeneous Materials and SGS Report RoHS/Reach/Green Certificates
BOSCH Wafer SGS Report RoHS/Reach/Green Certificates
WLCSP Package Homogeneous Materials and SGS Report RoHS/Reach/Green Certificates
SiTime Environmental Compliance Declaration RoHS/Reach/Green Certificates
Certificate of Compliance-EU RoHS Declaration RoHS/Reach/Green Certificates