SiTime Corporation I2C\/SPI Oscillators SIT3521AC-1CF331FB1.033000

The SiT3521 is a 1 to 340 MHz I²C/SPI programmable oscillator with ultra-low jitter, designed for applications requiring flexible clock generation in noisy environments. It is packaged in a 10-lead QFN measuring 5.0 × 3.2 mm and supports LVPECL, LVDS, or HCSL outputs. The device operates from -40°C to 105°C, features an integrated LDO for power supply noise rejection, and delivers 0.21 ps typical integrated phase jitter (12 kHz to 20 MHz). It supports any-frequency programming in 1 Hz steps and digital frequency pulling with resolution as low as 5 ppt. The part is RoHS and REACH compliant, Pb-free, halogen-free, and antimony-free.