Digital electronics miscellaneous

Digital electronics miscellaneous

Easy Questions
Moderate Questions
Difficult Questions

Digital Electronics

Digital electronics miscellaneous
  1. The number of unused states in a 4-bit Johnson counter is—








  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: C

    NA

  1. How many flip-flops are needed for MOD-16 ring counter and MOD-16 Johnson counter?








  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: B

    NA

  1. For the ring oscillator shown the propagation delay of each inverter is 125 pico sec. What is the fundamental frequency of oscillator output?










  1. View Hint View Answer Discuss in Forum

    Total propagation delay of the ring oscillator = 4 × 125 ns = 500 ps
    Fundamental frequency,

    f =
    1
    		 =
    1
    		 = 2 GHz
    tpd200 PS


    Correct Option: D

    Total propagation delay of the ring oscillator = 4 × 125 ns = 500 ps
    Fundamental frequency,

    f =
    1
    		 =
    1
    		 = 2 GHz
    tpd200 PS


  1. A 0 to 6 count consists of 3 flip-flops and a combination circuit of 2 input gate. The combination consists of—








  1. View Hint View Answer Discuss in Forum

    Alternative (A) is the most appropriate choice.

    Correct Option: A

    Alternative (A) is the most appropriate choice.

  1. Assume that counter is holding the count 0101. What will be the count after 27 clock pulses?








  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: D

    NA