- Tue Oct 14, 2014 2:17 am
#1589
Hey Squonk,
Saturn looks nice! Thanks again for such a valuable hint
Saturn looks nice! Thanks again for such a valuable hint
- Tue Oct 14, 2014 2:28 am
#1590
Yes, I confirm that Saturn is a very good toolbox!
- Tue Oct 14, 2014 2:40 am
#1591
Updated the design to a 25-ish mil trackwidth 
Gonna use a ceramic antenna so for that it is not critical also having an ufl connector so it matter a bit more for that.
Gonna use a ceramic antenna so for that it is not critical
also having an ufl connector so it matter a bit more for that.
- Tue Oct 14, 2014 2:58 am
#1592
Sjaak,
I don't know which information do you have at hand (HDK..).
But one thing on the VCC lines to the PA (Pin 3+4 at the Chip),
Espressif defined some contrains on this :
PCB Track from PA VCC Pin 3+4 to the 10uF VCC PA Ceramic Decoupling Cap : as close as possible to 6mm length , min 15mil
No ferrite beads and try to avoid vias
I guess they use the 6mm,15mil track as L here , together with the 10uF Cap they form a LC Filter.
I don't comment on the effect of a 10uF X7R or Z5U @ 2.4GHz
But well that is what Espressif recommends
I don't know which information do you have at hand (HDK..).
But one thing on the VCC lines to the PA (Pin 3+4 at the Chip),
Espressif defined some contrains on this :
PCB Track from PA VCC Pin 3+4 to the 10uF VCC PA Ceramic Decoupling Cap : as close as possible to 6mm length , min 15mil
No ferrite beads and try to avoid vias
I guess they use the 6mm,15mil track as L here , together with the 10uF Cap they form a LC Filter.
I don't comment on the effect of a 10uF X7R or Z5U @ 2.4GHz
But well that is what Espressif recommends
