20 MHz MEMS XO — why the resonator type matters for your BOM
The DSC1121CI2-020.0000: Because the base resonator is MEMS rather than quartz, the oscillator resists vibration-induced frequency shifts better than a traditional crystal — a practical advantage in motor-drive or engine-bay environments where board-level shock is present. The 2.25V to 3.6V supply range means it can be powered directly from a 2.5V, 3.0V, or 3.3V rail without an intermediate LDO, simplifying the power tree and reducing BOM count.
Enable/Disable function and supply current budgeting
The Enable/Disable pin allows the output to be tri-stated while the oscillator remains powered, dropping the supply current from 35 mA (max) to 22 mA (max) — useful for power-sensitive designs that gate the clock to a peripheral without cycling the oscillator's own supply.
Active lifecycle — no design-in risk
It is a current production part suitable for new designs and volume builds. Sourced through independent distribution; quoted to order against the BOM quantity.