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TAS5612A

Darren Yang
Expert 2000 points

hello，in the Datasheet，we can see there is AD mode and BD mode；what is different between AD mode and BD mode，could you help exposition it and give more detail Comparison ，tks！

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    TI__Expert 6195 points

    Hi Darren,

    Check out page 7 and 8 of the Class-D LC Filter Design (Rev. B) App Note. 

    I'll post some key points from the app note below, but do check out the app note as it has more detail and some great diagrams regarding your question. 

    AD Modulation modulates the duty cycle of a rectangular waveform, such that its average content corresponds to the input analog signal. The BTL outputs are the inverse of each other. 

    BD Modulation modulates the duty cycle of the difference of the output signals, such that its average content corresponds to the input analog signal. The BTL outputs are not the inverse of each other. 

    Best regards, 

    Dan