QUOTE (zombi @ Sep 3 2015, 16:54)

Подскажите, а что нужно подавать на вход "FBIN" у ICS574 ?
Согласно datasheet подать один выходов.
When one of the outputs is connected directly to FBIN, the rising edge of each output is aligned with the rising edge of the input clock. External delay elements connected in the feedback loops will cause the outputs to occur before the inputs by the amount of propagation delay of the external element.