Rank: Advanced Member
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Joined: 2/10/2009(UTC)
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Location: Italy
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Hi Russ and Brian,
I possibly wish to try to use external supplies for AVCC (after cutting the appropriate traces). What current draw am I to expect?
Thanks,
Nic
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Rank: Administration
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If you do it per the manual, then what you will be doing is just supplying the reference voltage. The current draw is minimal. A few ma.
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Rank: Advanced Member
Groups: Member
Joined: 2/10/2009(UTC)
Posts: 299
Location: Italy
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Thanks Russ, as usual just what I needed to know.
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Rank: Member
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Joined: 11/21/2008(UTC)
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Location: Norway
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how much is it to gain (sound-wise)by connecting separate power x-former with dedicated dual psu to ref.voltages on B32?
best
Leif
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Rank: Administration
Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 3,979
Location: Nashville, TN
Thanks: 25 times
Was thanked: 89 time(s) in 83 post(s)
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None that I know of. :) I just added the capability so I could adjust the voltage level itself. By increasing to say 3.5V you get slightly better DNR and more output swing. :) By lowering it you get lower output etc.
You could do that very easily with a voltage divider and say 5V from some place :).
The ref line has a RC filter prior to the reg. That will still be in play even if you use an external ref.
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Rank: Member
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Joined: 11/21/2008(UTC)
Posts: 314
Location: Norway
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ok thxs 4 swift reply....as always  best Leif Norway
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