ADAU1466 - ASRC - is digital filtering involved?

Hi, I just wanted to know if using the ASRCs involves digital filtering as it is done like in an AD1896?

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    •  Analog Employees 
    on Aug 20, 2019 5:35 PM

    I also want to add to matthijs' great response that the ASRCs in our SigmaDSPs are all derived from the work that went into the design of the AD1896. We made some improvements but they were minor. So if you read that datasheet you will have a good idea of how the ASRCs in the SigmaDSP function.

    I should also add that these are done in hardware like an accelerator. The sample rate conversion is done outside of the DSP core so no MIPS were used or harmed in the making of the new sample rate. ( a reference to movies saying that no animal were harmed... )

    So it does not use any of the core's processing power to do the conversion. 

    Dave T

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  • 0
    •  Analog Employees 
    on Aug 20, 2019 5:35 PM

    I also want to add to matthijs' great response that the ASRCs in our SigmaDSPs are all derived from the work that went into the design of the AD1896. We made some improvements but they were minor. So if you read that datasheet you will have a good idea of how the ASRCs in the SigmaDSP function.

    I should also add that these are done in hardware like an accelerator. The sample rate conversion is done outside of the DSP core so no MIPS were used or harmed in the making of the new sample rate. ( a reference to movies saying that no animal were harmed... )

    So it does not use any of the core's processing power to do the conversion. 

    Dave T

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