Four fixed clocks in one MEMS oscillator
The DSC400-1111Q0090KE2 is a MEMS-based XO (Standard) oscillator from Microchip's DSC400 series, delivering four fixed LVCMOS outputs at 10 MHz, 27 MHz, 148.5 MHz, and 125 MHz — a single component that replaces four discrete crystal oscillators on a board handling video, Ethernet, and logic timing.
Operating supply range is 2.25 V to 3.6 V, covering both 2.5 V and 3.3 V rails — one part serves mixed-voltage boards without an extra regulator. Housed in a 20-VFQFN exposed-pad package measuring 5.00 mm × 3.20 mm with a 0.90 mm height, the thermal pad requires a via-in-pad layout for proper heat sinking; the compact footprint suits space-constrained multi-layer PCBs.