On Thu, May 10, 2012 at 05:41:15PM +0800, Shawn Guo wrote: > The "Mic Bias" here is really a SGTL5000 internal supply. If it is then what's providing the bias to the mic? It's common for chips to have a micbias supply which comes out of the chip and is used by mics, this is my understanding of what this circuit is.
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