Dual HCSL clock at 125 MHz and 100 MHz
The DSC400-0404Q0020KE1: This MEMS-based XO delivers two HCSL outputs: 125 MHz on Output 1 and 100 MHz on Output 2, making it a direct fit for PCIe Gen1/2/3 reference clocks and 100 MHz Ethernet MAC/SERDES applications.
MEMS resonator vs quartz — sourcing and reliability angle
For a production line that has seen quartz allocation issues, this is a practical alternative.
Package and layout note: 20-VFQFN exposed pad
The 20-VFQFN with exposed pad (5.00 mm x 3.20 mm body, 0.90 mm height) requires a thermal via array under the pad for proper heat dissipation.