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TAS5768M speaker limitation register of output and amplitude

kyt
Expert 2355 points
Other Parts Discussed in Thread: TAS5768M, PUREPATHSTUDIO

Hi,

 

Now we are developing speaker with smart amp.

TAS5768M can be set limitation of output and amplitude limitation to speaker.

http://www.ti.com/product/tas5768m

 

So,What register setting is influence to “speaker output limitation “ and amplitude(magnitude) limitation?

We should set limitation correctly, because of fail safe.

In the worst case,if our settitng is not correct, speaker will be burn by overvoltage and current.

 

It seems to be Page44 register on PurepathStudio.

 

If it can be disclose, pls let me know.

 

Best regards,

 

kyt

  • 0
    TI__Mastermind 37045 points

    Hi kyt,

    We have an apps note that describes the Smart Amplifier features and design steps. Please refer to the link below for more info -

    www.ti.com/lit/an/slaa625a/slaa625a.pdf

     

    reg,

    Paul.

     

     

  • 0 in reply to user5276421
    Expert 2355 points

    Hi Paul,

    Thnak you for your reply very quickly.

    In fact,we have alredy got the register address information from your design team as below:

    -Speaker output limitation:Page44.0x0C - 0x18

    -Amplitude(magnitude) limitation:Page44. 0x61 - 0x8A

    TAS5768M has register address from 0x00 to 0x7F, not 0x8A.

    Is it correct range of Amplitude limitation setting (P44: 0x61-0x8A)?

    best regars,

    kyt

  • 0 in reply to kyt
    TI__Mastermind 37045 points

    Hi Kyt,

    Can you please describe what the customer intend to do so that we can better help you with that?

    You can email me directly if the info is sensitive.

    reg,

    Paul.

  • 0 in reply to user5276421
    Expert 2355 points

    Hi Paul,

    I sent your address.Pls chek in detail.

    And this is just update.

    In our test with PPCMB and PurePath Console,there is register address as below:

    Amplitude limitation :Page47:0x4C-0x4F（4byte）

    Output limitation:Page44: 0x50-0x53（4byte）

    Pls let me know correct address of two limitation.

    best regards,

    kyt