MEMS resonator replaces quartz — what that means for the BOM
The DSC1101AI2-026.9910T: The base resonator is MEMS, not a quartz crystal — no startup-time lottery, no frequency overshoot on power-up, and no crystal-cut sensitivity to board-level shock. The 26.991 MHz output is CMOS, so it drives a standard clock input directly without an external termination network.
Supply voltage and temperature range — fit to the rail
Supply range is 2.25 V to 3.6 V — one part number covers both domains. Frequency stability is ±25 ppm across the full temperature and voltage range.
Standby function and package — board-level checklist
The Standby (Power Down) function pulls the output to high-impedance and drops supply current to 95 µA max — useful for battery-powered equipment that sleeps between bursts. The package measures 7.00 mm × 5.00 mm × 0.90 mm; the exposed pad should be soldered to a ground plane for thermal and mechanical stability.