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  1. #1
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    idle tone

    I have designed a sigma delta DAC. When I use it to hear music, I can hear the idle tone. But I don't know how to get off it. who can help me?

    •   Alt14th July 2004, 10:49

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  2. #2
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    idle tones sigma delta

    You may add the dither circuit in ADC or use multibit modulator if you
    use one-bit modulator in your ADC.

    you may get more information in this book :
    "Delta-Sigma Data Converters: Theory, Designand Simulation"



    •   Alt15th July 2004, 10:34

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  3. #3
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    idle tone sigma delta

    Dear bamboo:
    I have read that book, but I don't know which type dither to use and how to choose the amplitude of the dither. Can you tell me about that?



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