Thread: All New Microshar uAMP107B Version Is Out For Very Low Cost !!!!
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Old 07-27-2007, 12:57 AM   #47 (permalink)
Filburt
Headphoneus Supremus

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Originally Posted by Ikon View Post
Microshar says 230 hours, IIRC. It runs on 2.4V (two NiMH cells) and I don't think I saw a step-up-converter in there.
Hmm, hopefully it has more than 2.4v. 1vRMS (common output of portable devices) is ~2.828vpp sine wave (e.g. you need >2.828v supply just to get a unity gain buffer out of this).

Hmm...230 hours? Okay, so then they're figuring 10mA quiescent or is that figuring in projected average draw while driving headphones?
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