Active MEMS clock for 22.5792 MHz audio/video timing
The DSC1101AE5-022.5792 is a MEMS-based XO (Standard) producing a 22.5792 MHz CMOS output — the exact frequency required for DVD/Blu-ray audio sample rates (48 kHz family) and some video pixel clocks. It belongs to Microchip's DSC1101 series, which replaces quartz with a silicon MEMS resonator for better shock and vibration immunity. Supply voltage spans 2.25 V to 3.6 V, covering 2.5 V and 3.3 V logic rails without an external regulator. The absolute pull range is ±10 ppm, which defines the frequency stability over the full operating temperature and supply range — tight enough for most audio DAC master clocks and HDMI transmitters.
Standby power-down saves battery in duty-cycled systems
Active current draw is 35 mA max — typical for a 22.5792 MHz CMOS output driving a 15 pF load. The MEMS core itself consumes less than a quartz equivalent, but the CMOS output buffer dominates the power budget at this frequency.
Package footprint and board-level integration
Housed in a 6-VDFN Exposed Pad package measuring 7.00 mm x 5.00 mm with a seated height of 0.90 mm. The 6-pin VDFN footprint is compatible with many 7x5 mm SMD oscillator layouts, simplifying drop-in replacement for quartz-based designs.