*205R Variante: --> Confluence
- DF default
- DF36 default with 36um coppers
- B: 6 Layers with solid GND top & bottom
- C: no stub?
- D: NO PMOD on 4layers; Continuous GND under SCK
- E: extremely optimized layout with VIA in pad WIP
- F: GND void under the RF path
- G: 0402 on TXp/n;
    - only 1 cap on VDD_DIG
    - VIA in pad
    - All decoupling with GND via in pad i.e., lowest Z
    - cap on the TXp/n as close as possible
    - no inductor on the TXp/n anylonger
    - Common mode filter on +5USB
- H: new componets arrangement
