It is packaged using the Tray method since it is a clock IC. This clock generator ic can sustain 260 degrees of temperature during reflowing. There are CLOCK GENERATOR, PROCESSOR SPECIFIC uPs/uCs/Peripheral ICs integrated into this digital clock generator.
SI5356A-B07549-GM Features
SI5356A-B07549-GM Applications
There are a lot of Silicon Labs SI5356A-B07549-GM Clock Generators applications.
Satellite navigation communication
Clock signals to the high-speed Digital RF circuits