Headset Amp circuitry (jOERG)

Joerg Reisenweber joerg at openmoko.org
Sat May 31 21:31:19 CEST 2008

Am Sa  31. Mai 2008 schrieb Yorick Matthys:
> There used to be a problem with this. AFIK jOERG mentionned it first in the 
devel list:
> http://lists.openmoko.org/pipermail/openmoko-kernel/2008-March/001994.html
> Does anybody know if it has been resolved and/or if the mp3 playback quality 
can be compared with a standard mp3 player?
> Thanks
> y

@Allen, Tim:
Did we change C4110, C4111?
Did we a frequency response plot for headphone with a sweep/wobbler? (i 
guess "sox" software can generate this on FR)
Footprint of 4.7u was no problem, IIRC

@Yorik: I tested quality of a prototype (113) and it wasn't so bad, but missed 
quite some low frequency. 

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