Novel Low Power MEMS Technology Delivers ±1 ppb Stratum 2 Stability for Telecom Holdover
Holdover is critical to maintain service continuity in 5G networks and datacenters. OCXOs are typically used for this purpose. We present a novel MEMS OCXO technology designed for environmental resilience. By thermally coupling two MEMS resonators on the same die and integrating within an oven, the technology delivers ~1 FIT reliability, 8 to 24 hours holdover, 4e-12 ADEV at 1s to 1000s tau, ±10 ppt/°C freq-over-temp slope, < ±0.1 ppb/day aging and up to 95°C operation in a 9.0 x7.0 x 3.6 mm package.