... | @@ -56,10 +56,19 @@ Projects](https://www.ohwr.org/project/fmc-projects) |
... | @@ -56,10 +56,19 @@ Projects](https://www.ohwr.org/project/fmc-projects) |
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[Breakout-board](Breakout-board) and available on
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[Breakout-board](Breakout-board) and available on
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[EDA-03341-V1](https://edms.cern.ch/nav/P:EDA-03341:V0/I:EDA-03341-V1-0:V0)
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[EDA-03341-V1](https://edms.cern.ch/nav/P:EDA-03341:V0/I:EDA-03341-V1-0:V0)
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<!-- end list -->
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## PCB versions
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### Working versions
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- Documentation of the **latest FMC DIO10I8O V3** is available on
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* [EDA-03287-V4](https://edms.cern.ch/item/EDA-03287-V4-0/)
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[EDA-03287-V3](https://edms.cern.ch/item/EDA-03287-V3-0/0)
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* Modifications required for proper operation:
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* To get rid of the N12V0 100mV ripple, place the not-mounted C1 capacitor of 150pF. This will render the LM2611 (IC2) feedback loop stable.
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* About 20% of the V4 cards have a too high ripple for the N2V9 rail, change R19 from 10k to 15k for all.
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* IC18_IC has its D1 (pin10) and D2 (pin9) pins floating because of a not-connected via, undetected by Altium (problem might be on previous versions as well!). When activating Ch4 and Ch5 50 Ohm termination, both channels will be electrically connected! Solder a small wire between the via and the neighbouring GND pad. [Bug reported](https://bugcrunch.live.altium.com/#Bug/3060)
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* [EDA-03287-V3](https://edms.cern.ch/item/EDA-03287-V3-0/)
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* Modifications required for proper operation:
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* For a stable N2V9 supply rail, change R19 from 3.9k to 10k.
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* (Above V4 via problem might theoretically be possible as well, though not seen at production)
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### Development versions
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- Several components were changed on EDA-03287-V2 to make it
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- Several components were changed on EDA-03287-V2 to make it
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functional, so there's now an unofficial EDA-03287-V2.1
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functional, so there's now an unofficial EDA-03287-V2.1
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- [EDA-03287-V21](EDA-03287-V21)
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- [EDA-03287-V21](EDA-03287-V21)
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