Choosing a Clock Distribution Device
Clock distribution devices can be classified in many different ways. In some cases, designers may want to take the incoming clock and distribute it to multiple destinations without modifying the clock frequency. In other cases, designers may need to divide it down or multiplex it with other clocks.
A zero delay buffer may be needed in some clock distribution applications. These PLL-based devices regenerate the input clock signal with fanout to drive multiple loads. Most devices allow adjustments to the delay through the device through an external feedback path.
