Sigma-delta modulator design

Discussion in 'Homework Help' started by sarahjsepehr, Dec 26, 2007.

  1. sarahjsepehr

    Thread Starter New Member

    Dec 26, 2007
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    i must design a sigma delta modulator, please help me
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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  3. Papabravo

    Expert

    Feb 24, 2006
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    Will this be for an ASIC? What tools are you using?
    Is this going to be a discrete design?
    What are your requirements?
    Give us something to go on.
     
  4. sarahjsepehr

    Thread Starter New Member

    Dec 26, 2007
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    please help me in finding the internal circuit of ADS1203, in detail?
    in it's data sheet it has only it's block diagram, but i want it in detail.
     
  5. beenthere

    Retired Moderator

    Apr 20, 2004
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    The device schematic is proprietary information, and not available to the public.

    Your time would be better spent learning about sigma-delta converters and proceeding from that level of understanding.
     
  6. scubasteve_911

    Senior Member

    Dec 27, 2007
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    I hate threads like these...
     
  7. Papabravo

    Expert

    Feb 24, 2006
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    Why? What's to hate about a thread that gives information on the futility of a useless search for information that is unavailable.

    If I were the OP I'd go right to the source and ask. The answer might still be no, but a contact is a contact.

    Here is the #1 Google hit. You should have been able to do this for yourself.
    http://www.imse.cnm.es/esd-msd/WORKSHOPS/MIXMODEST/PRESENTATIONS/medeiro1.pdf
     
  8. scubasteve_911

    Senior Member

    Dec 27, 2007
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    I was mainly referring to when they ask an extremely open-ended question, it's inconsiderate. You spend all this time trying to help, then it turns out that no where near what they need.

    C'est la vie i guess

    Steve
     
  9. Papabravo

    Expert

    Feb 24, 2006
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    I see you were complaining about the original post. I guess some people expect all knowledge to be freely available at no cost and with no effort. The world just doesn't work that way.

    Quelle domage, mon ami
     
  10. Dave

    Retired Moderator

    Nov 17, 2003
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    That's the Google-effect for you ;)

    Dave
     
  11. PhotoMonger

    Member

    Jan 7, 2008
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    Wow harsh.
     
  12. beenthere

    Retired Moderator

    Apr 20, 2004
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    That's an odd reaction. This is a section for homework help. The OP was not asking for help, but the whole project, and a bit of stolen IP at that.

    The policy is: show that you have actually done some work. Indicate where you are having problems. We (the whole community) will see if we can spot the problem or clarify the your understanding.

    It remains the OP's responsibility to do the work. Asking for a canned answer/project isn't any different from cheating.
     
  13. scubasteve_911

    Senior Member

    Dec 27, 2007
    1,202
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    I couldn't agree with you more, well put sir!
     
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