The SpectraTime SXO-75 synchronized crystal clock features integrated synchronization functions through its advanced SmarTiming+ technology. It allows customers to reduce cost and size by integrating synchronization features into one package rather than via a separate external circuit board. Characteristics include a multi-vendor GPS interface; auto-adaptive filtering of jitter, wander, and noise at 1 ns resolution for up to 100,000 s; and programmable outputs and phase offset adjustments. It also provides programmable GPS-phase sync or reference frequency track mode and an EEPROM (electrically erasable programmable read-only memory) device for seamless frequency calibration and software upgrades. It is compatible with the smart Rubidium SRO-100.