SiTime Corporation Ruggedized 32.768 kHz TCXOs SiT7910AI-1P18-B32.768

The SiT7910 is a 32.768 kHz MEMS TCXO designed for precision timing applications such as RTC references and GNSS signal acquisition. It is packaged in a 2.5 mm × 2.0 mm ceramic case measuring 1.2 mm². The device operates from 1.62 V to 3.63 V with a typical supply current of 5.0 µA and offers ±0.1 ppm frequency stability over temperature, verified from -40°C to 85°C with optional extended ranges down to -55°C and up to 105°C. It exhibits 30 ms drift over 7 days at 85°C, g-sensitivity of 20 ppb/g per MIL-PRF-55310, and 2.1 nsRMS phase jitter. The part is Pb-free, RoHS and REACH compliant, and meets MIL-STD-883 mechanical shock and vibration standards. Output is LVCMOS-compatible with 9 ns rise/fall times and 45-55% duty cycle.