The DSC1103CE5-266.6667 is a MEMS-based XO delivering a 266.6667 MHz LVDS output with ±10 ppm frequency stability. That frequency lands squarely in the range used for 10G Ethernet, PCIe Gen3 reference clocks, and FPGA transceiver reference inputs — the LVDS swing keeps jitter low over a point-to-point trace without the common-mode noise of a single-ended clock. Supply voltage spans 2.25V to 3.63V, so the same BOM line can feed from a 2.5V or 3.3V rail without a dedicated regulator.
Microchip lists the DSC1103CE5-266.6667 as Active.
Housed in a 6-SMD no-lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm. Not qualified for automotive or extended industrial ambient.