MEMS timing for 22.5792 MHz clock generation
The DSC1121AE5-022.5792T is a MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a 22.5792 MHz CMOS output with ±10ppm frequency stability across its -20°C to 70°C operating range. The MEMS resonator (Base Resonator: MEMS) provides inherent resistance to vibration and shock compared to quartz crystals, making it suitable for equipment exposed to mechanical stress during transport or operation.
Operates from a 2.25V to 3.6V supply, covering 2.5V and 3.3V logic rails with a single part — no additional level translation needed for CMOS loads. Maximum supply current is 22 mA, which sets the power budget for the oscillator on a shared rail.
Housed in a 6-SMD, No Lead package measuring 7.00mm x 5.00mm with a seated height of 0.90mm — a standard footprint for oscillators in this frequency range.