MEMS oscillator at 12.8 MHz for industrial clocking
The DSC1522AI2A-12M80000 is a MEMS-based XO (Standard) that generates a fixed 12.8 MHz output in LVCMOS logic levels — a common frequency for Ethernet PHYs, baseband processors, and FPGA reference clocks.
Housed in a 4-VDFN with exposed pad (7.00 mm x 5.00 mm, 0.90 mm seated height), the package requires a thermal pad on the PCB to conduct heat to the ground plane — the exposed paddle is the primary thermal path, not the leads. Frequency stability is ±25 ppm across the full temperature range, which keeps the clock edge jitter within the timing budget for 10/100BASE-T Ethernet and most serial interfaces without external PLL tuning.