Topic: Digital Electronics
A counter is designed with six stages of flip flops. Determine the output frequency at the last (sixth) stage, when input frequency is 1 MHz
- A. 1 MHz
- B. 166 KHz
- C. 15.625 KHz
- D. zero
Answer: C. 15.625 KHz
Explanation: The output of flip-flop will give half of input frequency. So, the output frequency at the last (sixth) stage = $\frac{1 \times 10^6}{2^6} = 15.625~kHz$