SI5351A-B-GM1R
Overview
The SI5351A-B-GM1R is an I2C-configurable clock generator capable of synthesizing up to 8 independent non-integer related frequencies from 8kHz to 200MHz. It functions as a crystal oscillator replacement, featuring a fractional-N synthesis architecture that allows for zero ppm frequency error. This specific variant is optimized for use with an external crystal and provides LVCMOS outputs in a compact 3x3mm 16-QFN package.
Why Choose This Part
The SI5351A eliminates the need for multiple discrete crystals, saving significant PCB space and reducing cost. It offers excellent frequency flexibility with a wide supply voltage range of 2.25V to 3.6V and a low operating current of 24mA. The I2C interface allows for dynamic frequency reconfiguration during operation, which is critical for systems requiring multiple power modes or varying data rates.
Applications
Key Specifications
Getting Started
Engineers can use the Skyworks Skyworks ClockBuilder Pro software to generate configuration files and register maps. For prototyping, the SI5351A-B-GM1R can be integrated into designs using the I2C bus of any standard microcontroller. Evaluation boards are available to test clock performance and phase noise before finalizing the PCB layout.
Also Consider
