Unless you are using the same PCB material and manufacturer, you should ask your PCB manufacturer. Even the PCB manufacturing process can bring about impedance changes. That is why the PCB manufacturer includes a impedance token to test the impedance and then adjust their plating/edging time.
Regards, John > On Apr 15, 2016, at 9:23 AM, Nick <rk.na...@gmail.com> wrote: > > > Dear BeagleBoard > > I have a Beaglebone black hardware and have few question regarding the same > in some document i found the layer stack up dimension in mils it is mistyped > as inched anyway. > > <https://lh3.googleusercontent.com/-qz23YbGfDBM/VxEULsycp5I/AAAAAAAAAKQ/ZjgCUqH28WIPO0VD4rvFiqyIU4GP5pj8wCLcB/s1600/Screen%2BShot%2B2016-04-15%2Bat%2B17.16.56.png> > does this track width (50ohm single ended impedance control) marked in red > represent all signal lines like spi,i2c,uart, gpio including power lines in > which case the track width of power line is also 4.75 mils on external layer > and 5.25 miles on internal layers ? > Regards > Nick > > -- > For more options, visit http://beagleboard.org/discuss > <http://beagleboard.org/discuss> > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com > <mailto:beagleboard+unsubscr...@googlegroups.com>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
