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added link to mic powering

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@2980 a1c6a512-1295-4272-9138-f99709370657
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Uwe Freese 2002-12-13 00:05:12 +00:00
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docs/FAQ
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@ -630,3 +630,6 @@ A69: There are several types of microphones.
an electret condenser capsule (see above) (and this power could
also used to feed a mic amplifier), but the archos hasn't
(it's a line in and no mic in!).
If you want to know more on microphone powering, read this:
http://www.hut.fi/Misc/Electronics/circuits/microphone_powering.html.
(As described, you need also amplification.)