[alsa-devel] [PATCH V2 08/11] ARM: dts: imx6q-sabrelite: add sound device imx6q-sabrelite-sgtl5000

[Shawn Guo]

On Thu, May 10, 2012 at 05:34:45PM +0800, Richard Zhao wrote:
> > "Mic Bias" is a SUPPLY for both "MIC_IN" and "Mic Jack", so it should
> > look like:
> > 
> >                        "Mic Jack", "Mic Bias",
> >                        "MIC_IN", "Mic Bias",
> Not really. The circuit:
> MIC_IN <-- capacitor <--> Mic Jack
>                       /
>             Mic Bias /
> 
The "Mic Bias" here is really a SGTL5000 internal supply.

Regards,
Shawn

> DC can not pass the capacitor. So Mic Bias only supply Jack.
>