MEMS oscillator at 49.152 MHz — what drives the choice
The DSC1001DC5-049.1520: The 49.152 MHz frequency is a common multiple for audio clocking (48 kHz × 1024) and Ethernet reference clocks, making this a direct fit for audio codecs, USB audio interfaces, and 100BASE-TX PHYs that require a 25 MHz fundamental multiplied internally.
The 1.8V to 3.3V supply range covers three common logic rails without a dedicated regulator — the oscillator operates directly from a 1.8V core rail, a 2.5V I/O rail, or a 3.3V peripheral rail.
Housed in a 4-SMD, No-Lead package measuring 2.50 mm × 2.00 mm with a seated height of 0.90 mm, this oscillator fits tight PCB layouts typical of handheld or space-constrained automotive modules.