MEMS oscillator at 27 MHz – why the ±10 ppm matters
The DSC1101DE5-027.0000 is a MEMS-based XO (Standard) delivering a 27 MHz CMOS output with ±10 ppm frequency stability across its -20°C to 70°C operating range. Unlike a quartz crystal oscillator, the MEMS resonator is inherently more resistant to shock and vibration — a real advantage if the board sits in a fan-cooled chassis or near a motor drive. The 2.25V to 3.6V supply rail means it can run from a 2.5V or 3.3V rail without an extra LDO, saving a regulator and a decoupling cap on the BOM.
Standby power-down and supply current budget
The standby (power-down) function pulls the output to high-impedance and drops the supply current to 95 µA max — useful for battery-powered gear that sleeps between transmissions. When active, the oscillator draws 35 mA max at 27 MHz — a reasonable figure for a MEMS XO at this frequency; the CMOS output swings rail-to-rail, so no external termination resistor is needed for short traces.
Active production – no LTB pressure
It is suitable for both new designs and ongoing production. The 6-VDFN package (2.50 mm x 2.00 mm, 0.90 mm seated height) is a standard footprint for MEMS oscillators; the 0.098" x 0.079" body fits tight layout areas.