Elite X Super-TCXO enables delivery of new services, says SiTime
Twice as stable and with 30 times higher reliability, the Elite X Super-TCXO has been released by SiTime for r edge networks such as data centres, 5G front haul, connected cars and industrial IoT. In these applications, said the company, it solves critical timing problems and enables delivery of new services.
The Elite X Super-TCXO improves stability by a factor of two and has 30 times higher reliability than quartz, said SiTime. One application area will be outdoor, decentralised edge networks, said Piyush Sevalia, executive vice president of marketing at SiTime.
“22 million autonomous vehicles on the road by 2025, the rapid adoption of 5G, and the continued growth of data centres, will require a large build-out in outdoor, decentralised edge networks. These new edge devices and their precision timing heartbeat must perform reliably in the presence of extreme temperatures, thermal shock, and vibration,” he said.
To enable new time-sensitive services such as advanced driver assistance systems (ADAS), virtual reality (VR) and smart manufacturing, edge devices will need to deliver faster speeds with lower latency. Legacy timing devices, such as quartz TCXOs and mini-OCXOs, have weaknesses in the areas of sensitivity to thermal shock and vibration, stability degradation at high temperatures, and shorter operating life. Elite X uses silicon MEMS technology, which is inherently more robust and reliable, said SiTime, overcoming these problems for time-sensitive services.
In particular, the SiT5501 Elite X Super-TCXO has ±10 ppb frequency stability, and ±0.5 ppb/ degrees C dF/dT (frequency slope) and is resistant to thermal shock and airflow and exhibits ±0.5 ppb daily aging. Another feature is that it operates at any frequency from 1.0 to 60MHz with up to six decimal places of accuracy
The SiT5501 operates over a wide temperature range of -40 to +105 degrees C. Typical power consumption is just 110mW and the TCXO is in a small 7.0 x 5.0mm package.
In edge networks, additional specifications such as aging, warm-up time, and power consumption are important for overall performance. SiTime said its Elite X series outperforms legacy timing devices, simplifies system design, and offers dependable, consistent performance.
SiTime offers a portfolio of TCXOs and OCXOs – the Elite X (±10 to 20 ppb stability), Emerald (±5 ppb) and Elite (±50-500 ppb) – to meet the requirements of communications, networking, automotive and industrial IoT applications.
