Rene Harder wrote: > This kind of EMI suppression filter is what i think we are looking for: > > TDK MEM2012P101R > http://www.tdk.co.jp/tefe02/e9617_mem_p.pdf
And they even have them at Digi-Key :-) So that one would be good for data and audio ? They're a little bulk, though. Also, when I compare the attenuation plots of the MEM2012 (pi) and the Murata NFL18ST (tee), then they basically look the same. We've been over EMI filters a lot in the Dash/HXD8 project, because of the high demands on GPS, and we had to switch from one type to the other (on UART lines) because of sourcing, apparently without ill effects. Back then, I didn't understand what the real difference between the two was. Maybe now I found someone who can explain ? ;-) What is there that the data sheet doesn't tell us ? You mention impedance, but all the data sheets show is attenuation for 50 Ohm. - Werner _______________________________________________ gta02-core mailing list [email protected] https://lists.openmoko.org/mailman/listinfo/gta02-core
