There is a case of 16-VFQFN Exposed Pad in which it is packaged. In case Tape & Reel (TR), the cut smart buffer is available. As you can see, it is mounted by Surface Mount. There is an output of LVPECL. It belongs to the family ICS8532-31.
8532AK-31LFT Features
8532AK-31LFT Applications
There are a lot of Renesas Electronics America Inc. 8532AK-31LFT Clock Buffers & Drivers applications.