What made you select the SiTime SiT7910 Endura™ Ruggedized Super-TCXO as a featured product?
I chose the SiTime SiT7910 Endura™ Ruggedized Super-TCXO because it is the most accurate 32.768 kHz TCXO on the market for the fastest GNSS signal lock. Designing reliable timing solutions for aerospace, defense, and rugged industrial systems isn’t easy. RF engineers have to account for extreme temperatures, constant shock and vibration, and tight power budgets. Traditional quartz-based oscillators often fall short in these conditions, struggling to maintain the stability and accuracy that mission-critical applications demand. When you’re working on GNSS receivers, handheld radios, or portable field equipment, you need sub-ppm performance and ultra-low power consumption without giving up durability.
That’s where the SiTime SiT7910 Endura™ Ruggedized Super-TCXO comes in. This device sets a new benchmark for 32.768 kHz timing references. Powered by SiTime’s MEMS First® technology and sealed with their high-temperature EpiSeal® process, the SiT7910 is the world’s first ±0.1 ppm MEMS TCXO of its kind in a tiny 1.2 mm² package. It delivers 25 times better frequency stability than typical quartz, helping GNSS receivers lock in seconds instead of waiting half a minute. With only ±2.5 ppm of aging over 20 years, strong resistance to vibration, and ultra-low jitter, it’s built to perform in tough environments. It does all this while drawing just 5 microamps.
What are the key features/specifications of the SiT7910?
Industry-leading ±0.1 to ±0.4 ppm frequency stability at 32.768 kHz
Best-in-class 20 ppb/g g-sensitivity for high-vibration environments
Ultra-low power consumption: 5.0 μA typical IDD (no load), 6.0 μA in real-world conditions
Typical 2.1 ns RMS phase jitter for clean signal performance
Exceptional long-term stability: ±4.0 ppm over 20 years
MEMS architecture with EpiSeal® vacuum-packaged resonator for high reliability
Operating temperature range: -55°C to +105°C
Wide supply voltage: 1.62V to 3.63V
30 ms 7-day drift enables reliable pps timekeeping
Pb-free, RoHS, and REACH compliant
What are common markets/applications of the SiT7910?
Military and aerospace handheld radios
GNSS-based systems requiring fast signal acquisition
Ground vehicle and airborne timing systems
Ruggedized portable communications and sensor platforms
Battery-powered IoT devices needing precise RTC
High-reliability industrial and defense electronics
About Tim Daly
Tim Daly is an RFMW Supplier Business Manager with over 30 years of experience in the RF & microwave industry. Tim has spent his career in product management and sales roles for well-known semiconductor companies, supporting some of the industries leaders in RF & microwave products.
