Dynamic Clock Switches

IDT dynamic clock switches (DCS) are PLL-based clock generators specifically designed for redundant clock distribution systems. The device monitors the input clock signals to detect a failing reference clock signal and it dynamically switches to a redundant clock signal, smoothly controlling the output phase during the switching and eliminating the phase bump typically caused by a clock failure. The typical applications for these dynamic clock switches are master and slave clocking circuits of high reliability equipment, such as core and edge routers and switches in networking or in high end servers.