Why a MEMS oscillator for a 24.576 MHz clock?
The DSC1121AM2-024.5760T: At 24.576 MHz with ±25 ppm stability, this oscillator serves as the reference clock for 100BASE-TX Ethernet PHYs and high-end audio codecs, where the tight ppm keeps the link synchronised across the full temperature sweep.
The 2.25V to 3.6V supply range lets you run the oscillator off a 2.5V or 3.3V rail without a dedicated LDO — one less part on the BOM, and the CMOS output swings rail-to-rail, so the downstream logic sees a clean clock edge.
The 6-SMD package with no lead exposed pad measures 7.00mm x 5.00mm and sits 0.90mm high.