The frequency of the signal at the output of the D flip flop is 5 kHz. The frequency of the signal at the clock of the rising edge triggered D flip flop is
The frequency of the signal at the output of the D flip flop is 5 kHz. The frequency of the signal at the clock of the rising edge triggered D flip flop is


Right Answer is:
10 KHz
SOLUTION
The frequency of the signal at the clock of the rising edge triggered D flip flop is
fout = 2 * fin
where:
- fout is the output frequency
- fin is the input frequency
Therefore, if the output frequency (fout) of the D flip-flop is 5 kHz, the input frequency (fin) of the clock signal must be twice the output frequency:
fin = 2 * fout = 2 * 5 kHz = 10 kH