SiTime’s programmable voltage-controlled MEMS oscillator (VCMO) combines a highly robust and reliable MEMS resonator with advance analog circuits to provide the most flexible and programmable solution for clock synchronization applications. The device’s extensive programmability enables delivery of customized samples in 24 hours and production quantities in 2 weeks with any combination of features including frequency, voltage, tolerance and package sizes. The ability to support factory-programmable pull range options from ±30 PPM to ±240 PPM in a single device is a unique SiTime feature not available in traditional voltage controlled crystal oscillators (VCXO). 

In contrast with quartz based VCXO, the SiTime VCMO generates frequency variation by modulating the internal Fractional-N PLL as opposed to “pulling” of the crystal resonator. This results in industry-leading 0.5% linear pull range, representing significant improvement over the 5%-10% linearity offered by VCXOs.  This enhancement allows system designers to simplify the clock synchronization algorithm, improve system lock time and provide better system stability.

SiTime’s all-silicon VCMOs offer best-in-class 2 FIT (500M Hours MTBF) performance which significantly improves system reliability and is an order of magnitude better than quartz-based oscillators. The broad flexibility that is offered by SiTime's devices ensures tremendous supply chain cost savings for OEMs and ODMs by allowing them to eliminate multiple suppliers, consolidate part numbers and inventory, and also shorten production lead time.