Rene, we discussed using a single filter component instead of a discrete "pi" configuration. What's your opinion ? I'm a bit concerned that we may end up with a lot of components to place in this already crowded area, and risk getting unexpected secondary effects.
Also, do we still need C4405 ? If I understand things correctly, it just stands guard against general EMI badness, but since we have a real filter now, it can only make things worse, no ? ECN0032 mentions its removal, but the schematic still has it. R4401 is for general DC protection ? By the way, if we replace the pis with integrated filters, we should have enough room to draw the various stages such that they don't overlap, i.e., one (virtual) rectangle with the jack, one with all the TVSs, one with all the filters, and then all the rest, including the branch JACK_INSERT branch. That should make the whole affair look a bit less intimidating. - Werner _______________________________________________ gta02-core mailing list [email protected] https://lists.openmoko.org/mailman/listinfo/gta02-core
