What this MEMS oscillator does on the board
The DSC1001CI5-011.0592T is a MEMS-based XO (Standard) oscillator that delivers a 11.0592 MHz CMOS clock output — the exact frequency used to generate standard UART baud rates (115200, 57600, etc.) without division error. It runs from a single supply between 1.8V and 3.3V, so the same part covers 1.8V MCU rails and 3.3V logic domains without a level translator on the clock line.
The ±10ppm frequency stability holds the timing tight enough for CAN and LIN bus nodes where bit-timing jitter must stay under a few percent of the bit period.