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Re: Warning: Bad MD mic inputs

Subject: Re: Warning: Bad MD mic inputs
From: Dan Dugan <>
Date: Tue, 24 Aug 2004 01:03:11 -0700
>I guess in a single-cell powered device
>  > 1.5V is as high as you get...a case for an external plug-in-power box.

>Nah, you can get quite a bit more using a charge-pump DC-DC convertor.

Of course, and I presume that's where the 4V plug-in-power from the
1.5V-supply Sharp 722 comes from. But from the report that started
this thread, it appears some models don't bother to boost up the
voltage for the mic.

-Dan Dugan


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