sinara-hw / Urukul

4 channel 1GS/s DDS (AD9910 or AD9912 variant)
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Output un-uns #49

Closed hartytp closed 4 years ago

hartytp commented 4 years ago

Only if this can be done without major rework or compromises on the layout: add a footprint for DNPd un-uns (e.g. TC1-1(T)(X)(+)) on the outputs. The idea of these (please add a schematic annotation documenting this) is to provide the possibility of breaking ground loops (in that case the "grounding" capacitors should be DNPd or possibly even just removed from the design).

gkasprow commented 4 years ago

obraz obraz

hartytp commented 4 years ago

Lgtm. Only comment is that I wonder if a bigger resistor package for the 0R would keep the gap between the input and output pins of the un un a bit wider. I don’t see this causing problems in practice however