It the input clock frequency of eight flip-flops is 768kHz, then what would be the value of its output frequency?

a. 2 kHz

b. 3 kHz

c. 6 kHz

d. 18 kHz

ANSWER: 3 kHz

Explanation:

Given:

Input frequency = 768 kHz

The output frequency of eight flipflops = (1 / 28) x Input frequency

= (1 / 28 ) x 768

= 768 / 256

= 3 kHz