The 5V41067A is a 2:4 differential clock mux for PCI Express applications. It has very low additive jitter making it suitable for use in PCIe Gen2 and Gen3 systems. The 5V41067A selects between 1 of 2 differential HCSL inputs to fanout to 4 differential HCSL output pairs. The outputs can also be terminated to LVDS.