Question

What is the output frequency for a counter circuit that contains 12 flip-flops with an input clock frequency of 20.48 MHz?

Answer 1

Answer:

5KHz

Explanation:

The formula for calculating the output frequency when the input frequency and the number of flip-flops are given.

$out put Frequency = \frac{in put frequency}{2^{N}}$

here, N is the number of filp-flops.

Note: The input frequency must be in Hz.

first convert given input frequency (MHz) into HZ.

$in put frequency = 20.48 *10^{6}Hz$

apply the formula:

$out put Frequency = \frac{20.48*10^{6}}{2^{12}}$

which comes out to be 5000Hz or 5KHz.