Embedded Solution Product of the Year
Product Name: EliteX Super-TCXO
SiTime’s Elite X Super-TCXO was designed for critical timing problems in edge networks such as data centers, 5G front
haul, connected cars and industrial IoT. Twenty-two million autonomous vehicles on the road by 2025, the rapid
adoption of 5G, and the continued growth of data centers will require a large buildout in outdoor, decentralized edge
networks. These new edge devices and their precision timing heartbeat must perform reliably in the presence of
extreme temperatures, thermal shock, and vibration. SiTime’s Elite X Super-TCXO enables the delivery of these new
services, which are otherwise not reliable or even available via other timing technologies.
In order to enable new time-sensitive services such as advanced driver-assistance systems (ADAS), virtual reality, and
smart manufacturing, edge devices will need to deliver faster speeds with lower latency. The SiTime Elite X Super-TCXO
shines by delivering 2x better stability and 30x higher reliability than quartz. Consequently, the Elite X Super-TCXO will
be the precision timing device of choice in edge equipment as precision timing plays a crucial role in their success.
Legacy timing devices such as quartz TCXOs and mini-OCXOs have well-known weaknesses such as sensitivity to thermal
shock and vibration, stability degradation at high temperatures, and shorter operating life. By using silicon MEMS
technology that is inherently more robust and reliable, the SiTime Elite X Super-TCXO overcomes these problems and
enables the next generation of time-sensitive services everywhere.
Further, in edge networks, additional specifications such as aging, warm-up time, and power consumption are important
for overall performance. Here, SiTime Elite X Super-TCXO outperforms legacy timing devices, simplifies system design,
and offers dependable, consistent performance.
SiT5501 Elite X Super-TCXO Features and Benefits:
±10 ppb frequency stability
-40°C to +105°C operating temperature. More applications require 105°C operation.
110 mW typical power consumption
Small package, 7.0 mm x 5.0 mm
±0.5 ppb/°C dF/dT (frequency slope), resistant to thermal shock and airflow
±0.5 ppb daily aging
Any frequency from 1 to 60 MHz with up to 6 decimal places of accuracy
Samples of the SiT5501 Elite X Super-TCXO are available now, with volume production in Q3’2022