It is packaged using the Tray method since it is a clock IC. When reflowed, this frequency generator can withstand a maximum temperature of 260. The uPs/uCs/Peripheral IC clock generator incoporates is CLOCK GENERATOR, PROCESSOR SPECIFIC.
SI5340B-B05604-GM Features
SI5340B-B05604-GM Applications
There are a lot of Silicon Labs SI5340B-B05604-GM Clock Generators applications.