SiTime has announced the launch of a new range of timing solutions

The Endura family of Super-TCXO products from SiTime is designed for high-performance applications that require stability and low noise in challenging environments. These products are particularly well suited for time synchronisation and RF systems, aerospace and defence networks, communications systems, and positioning, navigation and timing (PNT) applications.

In addition to SiTime's Endura Super-TCXO products, there are other noteworthy products on the market, such as the Septentrio M3 Pro+ GNSS board from Septentrio, a multi-frequency, multi-constellation GNSS OEM receiver board combining Septentrio's more than two decades of innovation. Known for its top-notch positioning performance and flexibility, this receiver can be used as a base station or mobile station receiver. In dual antenna mode, it provides heading and pitch or heading and roll information in addition to reliable and accurate positioning information. In addition, it features AIM+ advanced anti-jamming and monitoring technology, which provides built-in protection against intentional and unintentional jamming and spoofing, using sophisticated sampling and mitigation mechanisms to protect GNSS signals from RF radiation generated by neighbouring electronic devices.The M3 Pro+ also offers industry-leading low-power RTK positioning, and optimised SWaP (size, weight and power), which means it can run longer on a single battery charge, providing better value in the field. It also features GNSS+ algorithms to ensure optimal performance in challenging environments, including LOCK+ which automatically adjusts receiver parameters to cope with mechanical vibrations or shocks, so that no position is lost due to satellite tracking issues. iono+ provides state-of-the-art ionospheric scintillation suppression, while APME+ technology effectively separates direct and reflected signals for enhanced position and measurement quality. m3 Pro+ provides comprehensive documentation of interfaces, commands and data messages, and comes with RxTools software for receiver control and analysis, allowing receiver configuration, monitoring, and data logging and analysis, making it easy to integrate.
Endura Super-TCXO

Some of the key features of the Endura Super-TCXO include:
Operating frequency ranges from 10 MHz to 220 MHz, providing stability at different accuracy levels, such as ±0.5 to ±2.5 ppm for the SiT5146/SiT5147, and ±0.1 to ±0.25 ppm for the SiT5346/SiT5347 with ultra-high accuracy.
The SiT5346/SiT5347 offer ultra-high precision stability of ±0.1 to ±0.25 ppm.
Frequency stability is tightly controlled to ±0.1 ppm over the -40°C to 105°C temperature range, providing unprecedented ±5 ppb frequency stability.
Phase noise performance is excellent, for example, for
Excellent phase noise performance, such as -159 dBc/Hz at 10 kHz offset for 19.2 MHz carrier frequency, and -172 dBc/Hz for wide-base phase noise.
Acceleration sensitivity is as low as 0.5 dBc/Hz.
Acceleration sensitivities as low as 0.01 ppb/g, and the ability to withstand shock up to 30,000 g and vibration up to 70 g, demonstrating excellent dynamic performance and resistance to harsh environments.
Endura Super-TCXO
The Endura Super-TCXO is a MEMS-based design that offers higher reliability (100x improvement), lower power consumption (2x reduction), and smaller size (40% reduction) than quartz-based OCXOs.
These devices can be programmed in the factory to be
These devices can be factory-programmed into multiple configurations, eliminating the long lead times and customisation costs of quartz products, providing fast delivery and flexible configuration options.

SiTime's Endura Super-TCXO products provide the ideal clocking solution for demanding applications through their superior performance and reliability. Meanwhile, the Septentrio M3 Pro+ GNSS board is ideal for high-precision positioning and navigation applications with its advanced GNSS technology and outstanding performance.