SiT3522 - SiTime

SiT3522 I2C/SPI Programmable Oscillator

The SiT3522 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 output can be reprogrammed to any frequency between 340 MHz and .

Features

◼ Programmable frequencies (factory or via I2C/SPI) from 340.000001 MHz to 725 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 ps typical integrated phase jitter (12 kHz to 20 MHz)
◼ Integrated LDO for on-chip power supply noise filtering
◼ 0.02 ps/mV PSNR
◼ -40°C to 105°C operating temperature
◼ LVPECL, LVDS, or HCSL outputs ▪ Programmable LVPECL, LVDS Swing ▪ LVDS Common Mode Voltage Control
◼ RoHS and REACH compliant, Pb-fr.