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SiTime, Silicon MEMS Oscillators and Clock Generators

SiT1568 Super-TCXO with Auto-Calibration

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 SiTime's TempFlat MEMS(TM) technology enables the first 32 kHz ±5 PPM Super-TCXO in a 1.2mm2 chip-scale package. The SiT1568 is factory calibrated over multiple temperature points to guarantee ±5 PPM all-inclusive frequency stability.  And unlike any other TCXO on the market, this ultra-samll TCXO includes a one-time, in-system auto-calibration feature that cancels out post-assembly board stressors such as overmold and underfill.  The result is a 32kHz TCXO that maintains ±5 PPM all-inclusive stability in a tiny 1.2mm2 footprint, ideal for wearables, modules, and tiny IoT applications.

 

 

 

Frequency (kHz) 32.768
Frequency Stability (PPM)
 ±5 all-inclusive, after overmold/underfill and in-system auto-calibration
Temp Range (°C) -20 to +70, -40 to +85
Supply Voltage (V) 1.8 ±10%


Package LxWxH (mm) 1.5 x 0.8 x 0.6
Status Sampling
Applications
  • Smart Utility water, Gas, and Electricity Meters (AMR)
  • Smart Watches
  • Health & Wellness Monitors
  • Connectivity Modules

Features Benefits
  • ±5 ppm all-inclusive stability after overmold/underfill
  • Maintains ±5 PPM stability after overmold/underfilll for improved local timekeeping and improved system power
  • Smallest footprint in chip-scale (CSP): 1.5 x 0.8 mm
  • Saves board space
  • In-system auto-calibration enables overmold
  • Eliminates (cancels) board related stressors after assembly
  • Drives multiple loads
  • Eliminates multiple discrete XTALs + load caps
  • Internal VDD supply filtering
  • Eliminates external VDD bypass capacitor to maintain ultra-small footprint
  • Low jitter 4 nsRMS max integrated phase jitter (IPJ)
  • Suitable for audio applications, eliminates discrete MHz XTAL

 

1568-ordering

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

 

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Reliability Report Composition Reports
Available May 2016
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