PCM and PWM circuits needed

Discussion in 'Homework Help' started by saraali, Dec 13, 2011.

  1. saraali

    Thread Starter New Member

    Dec 13, 2011
    9
    0
    hi ,
    i am new member and i need your help
    i need 2 mini circuit one for (pwm)and second for(pcm)
    i use multisim 10​
     
    Last edited by a moderator: Dec 14, 2011
  2. tom66

    Senior Member

    May 9, 2009
    2,613
    214
    You need to expand:

    PWM:
    - sample rate
    - input range
    - output amplitude

    PCM:
    - sample rate
    - resolution
    - input range
    - output amplitude

    Is this coursework?
     
  3. saraali

    Thread Starter New Member

    Dec 13, 2011
    9
    0
    my teacher dose not give me this information
    i need onley design
     
  4. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    I have moved this thread where you are more likely to get the help you need.

    Before you can design anything you need to set design specs. It is part of the process.

    Refresh my memory please, what is PCM?
     
  5. saraali

    Thread Starter New Member

    Dec 13, 2011
    9
    0
    hi ,

    i need (pcm) circuit
     
  6. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    Please use your existing thread to ask questions. Multiple threads only confuse the issue.

    I have merged your two threads.

    I looked PCM up on Wikipedia.

    http://en.wikipedia.org/wiki/Pulse-code_modulation

    You will need to decide on byte size. Again, you need to provide the needed information first before anyone can help you.

    I have changed the title of your thread to give people more idea what is needed to help you.

    Have you read these out of the AAC eBook?

    Pulse Width Modulation

    Chapter 13: DIGITAL-ANALOG CONVERSION
     
    Last edited: Dec 14, 2011
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