2.8.5.3 Implementation Example

The following figure shows a complex clock distribution example. The reference clock (RefCLK) of PLLE is being sourced from non-clock signal pins (INBUF to PLLINT). The CLK1 output of PLLE is being fed to the RefCLK input of PLLF. The CLK2 output of PLLE is driving logic (via PLLOUT). In turn, this logic is driving the global resource CLKE. PLLF is driving both CLKF and CLKG global resources.