SiTime's Elite Platform™ I2C/SPI oscillators enable users to program output frequency and pull frequency in-system using a digital interface, offering designers great flexibility. This family offers ultra-low jitter and utilizes SiTime’s unique DualMEMS™ temperature sensing and TurboCompensation™ technology to deliver exceptional dynamic performance.

• Ideal for replacing multiple timing components in systems that support multiple frequencies such as telecom, networking, server, storage, broadcasting, test and measurement equipment 
• Any-frequency mode for programming output frequency via I2C or SPI from 1 MHz to 725 MHz
• Digitally controlled oscillator (DCO) mode for pulling/tuning frequency up to ±3200 ppm via I2C or SPI with 0.005 ppb resolution
• Any combination of frequencies (1 MHz to 725 MHz), voltage (2.5 V to 3.3 V), pull range (±25 ppm to ±3200 ppm), and three DE output formats (LVPECL, LVDS, or HCSL)
• 0.2 ps typical integrated phase jitter
  

Device	SiT3521	SiT3522
Datasheet
Frequency	1 to 340 MHz	340 to 725 MHz
Stability (PPM)	±20±25±50	±20±25±50
Output Type	LVPECL LVDS HCSL	LVPECL LVDS HCSL
Supply Voltage (V)	2.5 to 3.3	2.5 to 3.3
Temp. Range (°C)	-20 to +70 -40 to +85 -40 to +105	-20 to +70 -40 to +85 -40 to +105
Package Size (mm2)	5.0 x 3.2 10-pin	5.0 x 3.2 10-pin