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TPA3118D2: TPA3118D2 What`s condition for THD+N 10% and THD+N 1% ?

Genius 3200 points

Replies: 5

Views: 87

Part Number: TPA3118D2

Dear,

We see the TPA3118D2 datasheet and

is the following chart proven that TPA3118 supports to 18W@12V with THD+N=10% and 15W@12V with 1%.

 

If TPA3116 &3118 curves are same as following,  why the description stated differently?

 


 

If any suggestion, Please advise me.


Thanks,

 

Best regards,

 

Lawrence.

  • Hi Lawrence,

    Which description difference do you mean?

     You are right, TPA3118 supports to 18W@12V with THD+N=10% and 15W@12V with 1%.

    Regards,

    Derek

  • In reply to Yanming Gong:

    Hi, Derek

    i mean is THD+N=1% and THD+N=10% what`s different condition, like as below chart, i see supply voltage was the same 12V,

    and the same RL=4ohm, so is mean  blue curve is TPA3118D2?  and red curve is TPA3116D2?

    it`s right?

    if any, Please advise me.

    Thanks,

    Best regards,

    Lawrence.

  • In reply to Lawrence He:

    Hi Lawrence,

    You made the mistake. The curve shows the difference between 1% and 10% THD at same power supply, not the comparison between TPA3116 and TPA3118.

    At same PVCC power, 10% THD application can support more power output.

    Regards,

    Derek

  • In reply to Yanming Gong:

    Hi, Derek

    how to implement 1% and 10% THD+N?

    If any suggestion, Please advise me.

    Thanks,

    Best regards,

    Lawrence.

  • In reply to Lawrence He:

    Hi Lawrence,

    You can check the THD data using Audio Precision Instrument.

    Regards,

    Derek