Rene Harder wrote: > I just uploaded the last missing audio ECNs (ecn0036-0038), which would > need a brief discussion before implementation.
ECN00036: looks good to me. We have a lot of places to connect things there already, don't need more. ECN0037: looks good. Regarding your comment about the 2.5 mm audio jack: unfortunately, there's no room for a 3.5 mm jack. Joachim once made the very good point that the main use of the jack would be people bringing their music collection to work so that they don't have to upload to their company's PCs or such. So one could even consider completely getting rid of the microphone path there, removing one potential buzz victim and clearing the way for a capless design. ECN0038: 39pF+18pF ~= 56 pF ? Speaking of filters, building LC with discrete components adds a lot of stuff. I did't realize you were planning to use discrete bits, sorry. How about just using an integrated filter ? We may need filters for SIM as well, and also the UART to GPS looks like a filtering candidate to me. Not sure what C4128 does. > Also most audio ECN's are already implemented and need only the final > review to get closed. Especially ecn0010, ecn0015 and ecn0031-0033. I'll have a look at them in a bit. > Still open is ecn0018 "Add beads/filters to audio signals > leaving/entering can" which i think can be canceled because this is > mostly taken care of in ecn0032. Yes, agreed. Or move the EMI bit of ECN0032 to ECN0018, and make ECN0032 ESD-only. Not that we were very consistent at avoiding jumbo ECNs, e.g., "kill Glamo" :) > Another ECN where we haven't decided yet what we are going to do is > ecn0019 "Consider applying buzz fix", so comments are welcome. I asked Joerg and he thinks it would be safer this way. He also suggested to protect the headset mic as well. Not sure if we have the space, though. This is already a very busy area. Thanks ! - Werner _______________________________________________ gta02-core mailing list [email protected] https://lists.openmoko.org/mailman/listinfo/gta02-core
