As a clock IC, it uses the Tape & Reel (TR) package. The peak reflow temperature (Cel) amounts to NOT SPECIFIED to be essentially indestructible. Logic circuits containing this analog clock generator are commonly used in PLL BASED CLOCK DRIVER logic.
SI51218-A07980-GMR Features
SI51218-A07980-GMR Applications
There are a lot of Silicon Labs SI51218-A07980-GMR Clock Generators applications.
Mixed mode (analog and digital) applications
Mobile telephones
Clock signals to the high-speed Digital RF circuits