Dual HCSL output MEMS oscillator – clock tree fit
The DSC2044FI2-H0001 is a MEMS-based XO (Standard) that delivers two independent HCSL outputs, each with a set of factory-programmed selectable frequencies — Output 1 offers 100MHz, 106.25MHz, 125MHz, 156.25MHz; Output 2 offers 25MHz, 50MHz, 100MHz, 125MHz, 156.25MHz. With ±25ppm frequency stability and a wide supply range of 2.25V to 3.6V, this oscillator can serve as a single-device clock source for a PCIe reference, Ethernet PHY, or FPGA transceiver bank, reducing BOM clock-device count.
The 14-VFQFN exposed-pad package (3.20mm x 2.50mm, 0.90mm height) requires a thermal via array under the pad for proper heat sinking and to keep the MEMS resonator within its stability band across the temperature range.