Re: [beagleboard] Vdds_ddr decoupling caps in am3358

ok thank you for the reply. Le jeudi 26 mai 2016 21:08:19 UTC+2, john3909 a écrit : > > There are several other factors that affect decoupling: > > PCB Layout (smaller is better) > Ground planes size, distance between ground planes and dielectric material > used > Decoupling cap ESR > Proximity

Re: [beagleboard] Vdds_ddr decoupling caps in am3358

There are several other factors that affect decoupling: PCB Layout (smaller is better) Ground planes size, distance between ground planes and dielectric material used Decoupling cap ESR Proximity of the decoupling caps to the power pins Number and size of vias connected to power pins (think of

Re: [beagleboard] Vdds_ddr decoupling caps in am3358

Same answer as before. BeagleBone came first. Smaller board size. Lower cost And it works. Gerald On Thu, May 26, 2016 at 10:46 AM, wrote: > I see difference between last schematic of beaglebone black and am3358 > starter kit board concerning vdds_ddr decoupling cap.

[beagleboard] Vdds_ddr decoupling caps in am3358

I see difference between last schematic of beaglebone black and am3358 starter kit board concerning vdds_ddr decoupling cap. Am3358 sk board has 21 decoupling cap and beaglebone black uses 9 decoupling caps. The am3358 datasheet specifies tu use min 20 decoupling caps. Why this difference? --