Menu
Home / ECE / Exam Questions Paper :: Discussion

Discussion :: Exam Questions Paper

  1. A sequential multiplexer is connected as shown in figure. Each time the multiplexer receives the clock, it switches to the next channel from 6 to 1. If the input signals are :
    A = 10 cos 2p(4 x 103t)
    B = 15 cos 2p(5 x 103t)
    C = 20 cos 2p(6 x 103t)
    D = 10 cos 2p(10 x 103t)
    The minimum clock frequency should be __________ kHz.

    2. A.
    8 kHz
    B.
    50 kHz
    C.
    20 kHz
    D.
    10 kHz

    View Answer

    Workspace

    View Answer

    Answer : Option C

    Explanation :

    Minimum clock freq. = 2fm

    Where fm is highest freq. component = 2 x 10 kHz = 10 kHz.

Write your comments here:

Be The First To Comment