BP7 REV0 proto run

[electronic_eel]

@ian

Repeating this for a list of changes before routing.

• 7002 size change is a good update, especially not that there are more than 1 per PCB.
• I don’t see anywhere the 2.2uF would be critical, these should go to 4.7uF (changed, but not pushed)

Is this something you already would include into the first BP7 Rev0 run, the one without the port protection stuff? Or is this for BP7 Rev1 with port protection?

@ian

• The DACs specifically spec a 10uF 0805 cap, we could replace the 0402 10uF in the charge pump with one of those and reduce the BOM?

We already have a 10uF 0805 cap somewhere else. And we need a 10uF 0805 cap for the 9V aux rail.

But these are much larger than 0402, so I would just use them where they are really necessary because of their size. For example the reset/bootloader thing will work fine with a 0402 cap, once you paired it with a matching resistor.

So I would go for one large capacity one in 0402 and one 10µF 0805.

Which exact part number are you currently using for 4.7µF in 0402?

@ian

New parts to source:

This is all for the port protection stuff, so BP7 Rev1 and not Rev0, right? I’m now a bit confused about what goes where.