Overview
The SI5351A-B07321-GTR is an I2C programmable CMOS clock generator capable of replacing crystals, crystal oscillators, VCXOs, phase-locked loops (PLLs), and fanout buffers in cost-sensitive applications. This specific variant features an internal MultiSynth fractional divider architecture to generate any frequency from 8 kHz to 160 MHz with 0 ppm error. It is designed to operate from 1.71V to 3.6V, making it compatible with various low-power system architectures.
Why Choose This Part
This component eliminates the need for multiple custom crystals, significantly reducing PCB footprint and bill-of-materials cost. Its unique MultiSynth architecture allows for independent frequency synthesis on each output with exceptionally low jitter and high frequency accuracy.
Applications
Getting Started
To integrate the SI5351A, connect it to a host microcontroller via the I2C interface and provide a 25 MHz or 27 MHz reference crystal. Developers typically use the Skyworks ClockBuilder Pro software to generate the register configuration for the internal PLLs and dividers.
