SiT3521 Datasheet - SiTime

SiT3521 I2C/SPI Programmable Oscillator

The SiT3521 is an ultra-low jitter, user programmable oscillator which offers the system designer great flexibility and functionality. The device supports two in-system programming options after powering up at a default, factory programmed startup frequency: * Any-frequency mode where the clock .

SiT3521 Features

* Programmable frequencies (factory or via I2C/SPI) from 1 MHz to 340 MHz

* Digital frequency pulling (DCO) via I2C/SPI ▪ Output frequency pulling with perfect pull linearity ▪ 13 programmable pull range options to ±3200 ppm ▪ Frequency pull resolution as low as 5 ppt (0.005 ppb)

* 0.21

SiT3521-SiTime.pdf