digital electronics questions

Discussion in 'General Electronics Chat' started by chan999, Nov 17, 2010.

  1. chan999

    Thread Starter New Member

    Nov 17, 2010
    Hi Everyone,

    I am appearing for an interview in a company where the requirement is of Digital Electronics. I would like to know if there is a site where I could get some good digital electronics questions for preparation for the interview. Some of the questions asked in the previous interview.

    1) design a circuit to implement the function y=2^x. x input, y output
    2) charging and discjarging of a capacitor connected to a CMOS inverter
    3) Desing a circuit that produces an ouput that is just like the clock pulse but the Time period is three times the clock pulse.
    4) questions regarding setup and hold time, metastability.

    Could any one please let me know where I could get similar questions (and answers) for practise. Also could anyone tell me the solution for the 3rd question.

  2. timrobbins

    Active Member

    Aug 29, 2009
    Hi Chann999, I suggest doing a digital electronics course may be a good start.
  3. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
    If the job involved design of digital systems or FPGA logic, you may want to learn a bit more before applying.

    * 2^y power is simply shifting bits y spaces.
    * RC curve for charging and discharging, a lot of analog happens in digitial, especially high speed digital.
    * pulse stretcher circuit, could be done with analog or digital
    * Setup and Hold times involve sampling/ADC
  4. kubeek

    AAC Fanatic!

    Sep 20, 2005