Gigabee B2B connectors, supply decoupling

[rifo]

Hello,

There are pins for 1.2V, 2.5V and 1.5V in the B2B connectors. While designing a headerboard, should one decouple these pins even if they are not used in the design. Can I simply let them unconnected?

thank you very much
rifo

[Thorsten Trenz]

Hi,
as these pins are also used as high frequency return paths, it is always a good Idea to decouple them with 10nF - 100nF. If you do not use the IO Pins near them, you can omit the decoupling.

best regards
Thorsten Trenz

[rifo]

Hello Thorsten,

Thanks for your reply. I have added 100 nF capacitors to those pins.

mit freundlichen Grüssen
rifo