It is packaged using the Tape & Reel (TR) method since it is a clock IC. Incorporating CLOCK GENERATOR, PROCESSOR SPECIFIC uPs/uCs/Peripheral ICs, this RF synthesizer features CLOCK GENERATOR, PROCESSOR SPECIFIC.
SI5351B-B04482-GMR Features
SI5351B-B04482-GMR Applications
There are a lot of Silicon Labs SI5351B-B04482-GMR Clock Generators applications.