The SiT1568 is an ultra-small, low power, 32.768 kHz TCXO with ±5 ppm frequency stability. This TCXO employs SiTime's TempFlat MEMS™ technology and is factory calibrated over multiple temperature points to guarantee tight all-inclusive frequency stability. The SiT1568 comes in a tiny 1.2mm2 chip-scale package, the world's smallest oscillator footprint. Includes a one-time, in-system auto-calibration feature that cancels out post-assembly board stressors such as overmold and underfill.