11.059 MHz MEMS XO — what it replaces and where it fits
The DSC1121DI2-011.0590 is a MEMS-based XO (Standard) that outputs a CMOS clock at 11.059 MHz — the classic UART baud-rate generator frequency for 115200 and 57600 baud, also common in CAN and LIN node timing. The MEMS resonator replaces a quartz crystal and its load capacitors, so the oscillator starts faster and is less sensitive to board layout parasitics — a single 2.50 mm x 2.00 mm 6-SMD no-lead package delivers the clock without external tuning.
Supply range and enable/disable — power-tree flexibility
The supply voltage spans 2.25 V to 3.6 V, covering both 2.5 V and 3.3 V logic rails without a dedicated regulator — one BOM line serves multiple voltage domains.