SiTime’s new Endura Oscillator Families, precision timing for Aerospace and Defence
Summary
These ruggedised devices are engineered to deliver high performance in extreme conditions in aerospace-defence applications such as Positioning, Navigation and Timing (PNT), tactical communications, network synchronisation and surveillance. This leads to significant engineering time spent in troubleshooting and/or negotiating waivers with end customers. With the drive to higher performance and positioning accuracy, timing requirements for new aerospace-defence electronics are only getting more stringent. • -40°C to +105°C operating temperature range, enables use in extreme temperatures • ±10 ppb frequency stability over the full temperature range, highest amongst TCXOs, and able to replace more expensive, power-hungry, and less-reliable OCXOs • ±300 ppb 20-year aging at 85°C, eliminates expensive in-factory calibration that is required with less stable devices Endura differential oscillators enable low data error rates and uninterrupted communications for on-the-ground, mounted, dismounted and airborne conditions. • SiT9551, 15 different frequencies from 25 to 644.5MHz, 70fs RMS typical IPJ (integrated phase jitter, 12kHz to 20MHz integration range) • 9fs/mV power supply noise rejection (PSNR) ensures peak performance in the presence of power-supply noise, which is a common issue in dense aerospace-defence electronics • -55°C to +125°C operating temperature range, enables use in extreme temperatures • ±20 to ±50 ppm frequency stability over the full temperature range • 26mA no load current (typ.)