SiTime introduced its new SiT7910 32 kHz MEMS Super-TCXO as part of its Endura family for aerospace-defense applications that use Global Positioning Satellite (GPS) signals, such as ruggedized handheld radios, ground vehicles and sensing equipment.
The SiT7910’s 25x higher precision helps devices acquire and lock GPS signals more quickly and securely – Time to First Fix (TTFF).
“The GPS signal is ubiquitous and is a crucial part of national security, everyday communications, financial systems and power grid operation,” said Piyush Sevalia, executive vice president of marketing at SiTime. “Unfortunately, it is susceptible, not just to environmental disruptions but also to jamming and spoofing. GPS modernization is a multibillion-dollar, multi-year effort to upgrade the system with better features, performance, and security. Instrumental to this modernization is precision timekeeping, which ensures faster and more secure acquisition of, and locking to GPS signals. Our SiT7910 Super-TCXO delivers and is one more example of how SiTime uses our MEMS, analog, and systems technologies to solve big problems facing the world today. We estimate that the SiTime product portfolio now addresses a SAM, served addressable market, of approximately $2 billion. With products like this Endura Super-TCXO, along with other recently introduced families, and more to come, we are well on our way to grow our SAM to $4 billion by the end of 2024.”
Key features of the SiT7910 Super-TCXO
- 32.768 kHz frequency
- ±0.2 ppm frequency stability over -55°C to +105°C temperature range, up to 25x better than legacy quartz technology. In real terms, this translates to 1 second of accuracy being maintained for 1 year, vs. legacy quartz devices that can only maintain it for 1 to 14 days.
- Best in class 20 ppb/g g-sensitivity for resilience in high vibration environments
- Ultra-low power consumption, typically 6.0 µA, for use in portable Aerospace-Defense electronics
- ±5 ppm frequency aging over 20 years, maintains device performance over decades.
- 1.62 V to 3.63 V Operating supply voltage range for design flexibility
- Small 2.5 x 2.0 mm package for space constrained applications
- Pb-free, RoHS and REACH compliant.
Sampling is underway.