MEMS oscillator — 49.152 MHz for precision clocking
The DSC1121BI5-049.1520 is a MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a 49.152 MHz CMOS output with ±10 ppm absolute pull range (APR). The 49.152 MHz frequency is a common multiple for audio sample rates (48 kHz × 1024) and video pixel clocks, making this oscillator a natural fit for audio/video bridging, HDMI, and Ethernet PHY reference clocks.
Supply voltage and output control
Operating from 2.25V to 3.6V, this oscillator covers both 2.5V and 3.3V logic rails without an external regulator — a single supply rail serves the entire clock tree.
The 6-VDFN package measures 5.00mm x 3.20mm with a seated height of 0.90mm — a compact footprint for space-constrained PCBs, but the exposed pad requires a thermal via pattern and solder-paste stencil design to avoid voids.
Confirm availability and current pricing at RFQ.