The SiT5711 from SiTime is the industry's smallest Stratum 3E OCXO with a frequency range from 1 to 60 MHz. It has ±5 ppb frequency stability and 50 ppt/°C frequency slope (F/T). Leveraging SiTime's unique DualMEMS and TurboCompensation temperature sensing technology, this OCXO delivers the most stable timing in the presence of environmental stressors such as airflow, temperature perturbation, vibration, shock, and electromagnetic interference (EMI). In addition to the 9 x 7 mm package (the smallest OCXO available), this device is also available in common OCXO footprints such as 25 x 22 mm, 20 x 13 mm, and 14 x 9 mm to enable drop-in replacement of legacy quartz OCXOs. Some of the unique features about this OCXO is that there are:
- No restrictions on PCB placement
- No mechanical shielding is required for thermal isolation
- On-chip regulators, no need for external LDOs or ferrite beads
- Resistant to humidity
SiTime's Emerald Platform is the first MEMS oven controlled oscillator (OCXO) in the industry. OCXOs offer the pinnacle of performance in timing and are critical to the reliable operation of all communications networks. However, quartz-based OCXOs are extremely sensitive to environmental stressors such as vibration, temperature changes and shock, which can degrade network performance, reduce uptime, and impact mission-critical services such as advanced driver assistance systems (ADAS). SiTime's Emerald OCXOs solve these problems.
