MEMS oscillator for high-speed serial clocks
The DSC1123DI1-054.0000: This is a 54 MHz MEMS-based XO with LVDS output — the differential signalling gives better noise immunity than a single-ended CMOS oscillator for high-speed serial interfaces like Ethernet or PCIe reference clocks.
Housed in a 6-VDFN, 2.50 mm x 2.00 mm footprint with 0.90 mm seated height — the compact land pattern fits tight PCIe Mini Card or M.2 module layouts where a larger 5.0 x 3.2 mm quartz can won't route.
Listed as Active by Microchip — no EOL notice, no last-time-buy deadline. The MEMS resonator construction avoids the long lead times and vibration sensitivity of quartz crystals.