Introduction - If you have any usage issues, please Google them yourself
DPLL phase detector by the addition and subtraction counter modulus K synchronous pulse addition and subtraction circuit detection circuit establishing mode N divider constituted. The entire system of the center frequency (ie signal_in and signal_out the code rate of 2 times) for clk/8/N. Modulus K addition and subtraction of the K value of Counter DPLL decision accuracy and synchronization set-up time, K the greater the synchronization set-up time is long, synchronous and high accuracy. In contrast the short and low.