[Gumstix-users] MIC/SUBMIC inputs into Overo

[nchen <nc...@cs...>]

I was wondering if anybody had any extra insights about hooking up a
microphone into the overo's MIC/SUBMIC inputs and how much of the biasing
circuit depicted in the TPS65950 user manual (Figure 6-20) is already on the
Overo.

Brad Nelson's earlier post:
http://www.nabble.com/Electret-microphone-with-Overo-p22282294.html asked
about something similar but I think he was interested in hooking a
microphone into the LINE-IN ports. My understanding, based on some
beagleboard posts, is that to use the LINE-IN (Is this the same as the AUX
inputs in the user manual?) a mic signal has to to amplified up to line
level. Therefore, it seems more straightforward to use the MIC/SUBMIC inputs
directly.
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