The 2.25V to 3.63V supply range means this oscillator works directly from a 2.5V or 3.3V rail without an intermediate LDO — one less part on the BOM. Maximum supply current is 22 mA, which is typical for a 148 MHz LVDS output — the differential pair draws constant current regardless of frequency, so the power budget is predictable across the operating range.
The 7.00mm x 5.00mm 6-SMD no-lead exposed pad package (0.90mm seated height) requires a thermal pad on the PCB — the exposed paddle should be soldered to a ground-plane island for heat sinking, and the four corner pads are the signal and supply connections.