SiTime Corp. has introduced a radio frequency (RF) precision timing platform designed for future 5G and satellite communications systems.
The platform, called EliteRF, will expand SiTime’s target applications to infrastructure radios in small cells, remote radio units, microwave backhaul and SATCOM equipment. The RF devices are a new class of microelectromechanical systems (MEMS)-based temperature-controlled oscillators built to withstand extreme environments where 5G radios are deployed.
Previously, mini-OCXOs were the primary timing reference for 5G and SATCOM radios but they could not handle harsh environments and consume excessive power and board space. The EliteRF devices replace these components, SiTime said.
Features of the EliteRF devices include:
- 1 to 220 MHz any frequency output
- ±100 ppb stability over temperature
- -40° C to 105° C operating temperature range
- ±0.9 ppb/° C stability over temperature slope
- ±400 ppm digital control with ±0.05 ppt (parts per trillion) resolution
- 100 fs typical integrated phase jitter (19.2 MHz, 12 kHz to 20 MHz integration range)
- 0.3 ppb/day typical daily aging
- 144 mW power consumption at 1.8 V
