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TPS65950 power management question

omweng lf
Prodigy 20 points

1.power management  MCO21 mode:for power-on or warmrest sequence,the default value of auxldo isn't my preferred.what i want to know is that whether auxldo is disabled on the power sequence for default sequence model

2.for mono audio analog out,such as era.p,the dc bias value?

3.in carkit interface(for audio mode),if SPKRLEFTBIASEN disabled,the output audio dc?0 or other? 

  • 0
    TI__Genius 15100 points

    Hi,

    1. Yes, VAUXx LDO is disabled at power up.

    2. For ear output you will have a 1.5V DC bias.

    3. I dont understand your question. If you are using carkit then you may be using the D+ and D- as your output signals. If these are used then I would assume that the bias is needed for speakers. If you can help me understand your use case then that may help to answer your question.

     

    Regards,

    Gandhar.