Dual-frequency MEMS oscillator for compact clock trees
The DSC2311KI1-R0053T is a MEMS-based XO (Standard) oscillator from Microchip's DSC2311 series, delivering two independent CMOS clock outputs: 2.60288 MHz and 5.20576 MHz. The MEMS resonator eliminates the quartz-crystal start-up time and is less sensitive to vibration and shock — relevant for industrial or portable equipment where the board sees mechanical stress. Supply voltage accepts 2.25V to 3.6V, so the same part can be used on a 2.5V FPGA bank or a 3.3V MCU rail without a dedicated LDO.
For procurement, this means the BOM line does not carry an obsolescence risk window; you can commit without scheduling a last-time-buy.
The 6-VDFN package has a 0.50 mm pitch typical for this form factor — confirm the PCB land pattern matches the Microchip recommended footprint before layout freeze.