SiTime SiT5721
The SiT5721 is the industry’s first digitally controlled OCXO (DCOCXO), enabling output frequency tuning via I2C interface with ±5 ppt (±0.005 ppb) resolution. The device delivers ±5 ppb over-temp stability, ±0.04 ppb/°C frequency slope (dF/dT) and Stratum 3E compliance in the smallest 9 mm x 7 mm package. The SiT5721’s environmental robustness enables unmatched ease-of-use and reduces system manufacturing overhead: ◼ Highly flexible location on the PCB ◼ Minimal shielding for thermal isolation SiT5721 can be factory-programmed to any nominal output frequency between 1 MHz and 60 MHz.| Part No. | SiT5721 |
|---|---|
| Datasheet | SiT5721 Download |
| Manufacturer |  SiTime |
| Description | Platform Stratum 3E DCOCXO |
| Buy | Stock & Price |
DESCRIPTION
Leveraging SiTime’s unique DualMEMS® and TurboCompensation® temperature sensing technology, the SiT5721 is engineered for the best dynamic performance, delivering the most stable timing in the presence of environmental stressors – airflow, temperature perturbation, vibration, shock, and electromagnetic interference (EMI). It is supported by the SiT6731 evaluation board. 9 mm x 7 mm PackageFEATURES
● Any frequency between 1 MHz and 60 MHz, in 1 Hz steps● ±0.04 ppb/°C frequency slope typical (dF/dT)
● ±5 ppb frequency stability over temperature
● Up to 85°C operating temperature range
● 1.4E-11 ADEV at 10 second averaging time
● Digital frequency pulling via I2C Up to ±10 ppm pull range ±5 ppt pulling resolution
● Exceptional dynamic stability under airflow and rapid temperature changes
● Excellent holdover over a wide range of conditions
● Integrated regulators for on-chip power-supply noise filtering and excellent PSRR
● GR-1244 Stratum 3E compliant
● Resistant to sho...
