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felix_ | Bertl_zZ: ist es eigentlich beabsichtigt, dass der vccio-pin vom pcie-style connector im gegensatz zu den anderen versorgungsspannungspins nicht gekuerzt ist? | 13:57 |
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felix_ | oh, that wasn't english. i asked why the vccio pin isn't as short as the other vcc pins | 13:58 |
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Bertl | the fingers on the PCIe connector follow the 'usual' PCIe design for hotplug | 14:02 |
Bertl | VCCIO is normally not powered during hotplug, so it's not a problem | 14:02 |
felix_ | ah, ok; with vccio not being powered that makes sense | 14:03 |
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felix_ | now with the final outline and better edge connectors i.imgur.com/brCLYae.png | 17:11 |
felix_ | the board is now 62.6mm long | 17:12 |
felix_ | definitely won't get smaller; maybe 4mm bigger, but i'd say that everything will fit | 17:12 |
felix_ | (that size is including the pcie-style connector) | 17:15 |
Kjetil | btw. There is some layout recommendations for the xtal in the SI5342 reference manual (chap. 12) | 17:22 |
felix_ | yep, have seen that, but haven't created the xtal package yet | 17:23 |
felix_ | only thing i really dislike about working on pcb layouts is having to create the footprints i want to use, but usually i have to create footprints for stuff, because the not completely trivial ones from the library are often rather bad | 17:28 |
Kjetil | Last time I was playing around with a layout I got the footprints from digikey. (Ultralibrarian) To bad some of the symbols sucked | 17:29 |
Bertl | Ultralibrarian is a plague | 17:32 |
Bertl | most of the (now) metric footprints end up aligned to an imperial grid | 17:32 |
Bertl | which causes a lot of fun when routing them later ... | 17:33 |
Kjetil | ugh | 17:34 |
felix_ | the fpga symbols of the fpga could also be improved a bit (split into single io banks and not 2 io banks per symbol), but those were ok-ish; the footprints however weren't. i mean it's a really bad idea to have a qfn with non-segmented ground pad that is about 5x5mm big | 17:34 |
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felix_ | i.imgur.com/YrVnjTH.png enough for today :) | 22:44 |
Bertl | nice | 22:46 |
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