The DSC1103AI2-130.0000T is a 130 MHz MEMS-based XO (Standard) with LVDS output — the differential signalling keeps noise off the clock line over longer PCB traces, which is why you see it on high-speed serial links and FPGA reference clocks.
Supply range and standby current
Supply voltage spans 2.25 V to 3.63 V, covering 2.5 V and 3.3 V rails without an extra regulator — one less part on the BOM.
Housed in a 7.00 mm x 5.00 mm 6-SMD package with an exposed pad — the pad needs a thermal via or a solid ground-plane connection to keep the MEMS die at a stable temperature for tight ±25 ppm stability. Seated height is 0.90 mm, which fits under a heatsink or in a card-edge slot where vertical clearance is tight.