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How to implement separate outputs with linout and headphone on DSK6713

Lee Johnny
Prodigy 230 points


Hi,

I just need to implement separate outputs with both channals of linout and headphone on DSK6713, but until now I only know, that the outputs in both the channels are the same. I use always the command of AIC23: while (!DSK6713_AIC23_write(hCodec, x[sample])) for example. And I know that I can change the configration settings to adjust the volume of the headphone channel, but the headphone channel and the lineout channel always output the same signals, how can I for example outputs a sine wave in the  lineout channel and at the same time outputs a noise in the headphone channal. Is it possible?

best regards

Johnny

  • 0
    TI__Guru* 84915 points

    Hi, Johnny,

    The TLV320AIC23 allows the use of the line and headphones separately. This means that you're able to control the headphone and line volume depending of your needs. In this case, the ROUT and RHPOUT share the same channel and LOUT and LHPOUT share the other channel. So, it is possible to mute the ROUT to use RHPOUT with the right channel and mute LHPOUT to use LOUT with the left channel. Please take a look at the following picture for details.

    Please let me know if you have more questions or comments.

    Best regards,
    Luis Fernando Rodríguez S.