SiTime Corporation I2C\/SPI Oscillators SIT3521AC-2C133-0M100.000000

The SiT3521 is a 1 to 340 MHz I²C/SPI programmable oscillator with ultra-low jitter, designed for telecom, networking, and industrial applications requiring flexible clock generation. It operates from -40°C to 105°C and provides LVPECL, LVDS, or HCSL outputs with programmable swing and LVDS common mode voltage control. The device features integrated LDO noise filtering, 0.21 ps typical integrated phase jitter (12 kHz to 20 MHz), and 0.02 ps/mV power supply noise rejection. It supports any-frequency programming in 1 Hz steps and digital frequency pulling up to ±3200 ppm with 5 ppt resolution. The oscillator is packaged in a 10-lead QFN measuring 5.0 x 3.2 mm and is RoHS, REACH, Pb-free, halogen-free, and antimony-free compliant.