[hpsdr] JANUS BoM
Lyle Johnson
kk7p at wavecable.com
Wed May 31 10:17:18 PDT 2006
Hello Chris!
> 1) Do the 2700 pf capacitors need to be COG? The only COG version Mouser
> seems to have around comes in minimum units of 4000.
This is part of the sigma-delta roll input filter, probably doesn't have
to be C0G. Since it is in the critical signal path and could have some
impact on phase drift with temperature I elected to use a C0G part.
> 2) Should the 0.22 pf capacitors be COG? They are not marked so on your
> list.
I think you meant 0.22 uF, and I bought Mouser 77-VJ0805Y224KXJTBC for
my alpha build.
73,
Lyle KK7P
1149095838.0
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