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oneoclock		#1 Posted : Thursday, January 29, 2015 2:54:35 PM(UTC)
Rank: Member Groups: Member Joined: 12/27/2012(UTC) Posts: 6		Hello. I Measured the output of a AVCC trident installed on a Buffalo DAC. They have a small oscillation that I hope can be improved . Any ideas to solve?
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avr300		#2 Posted : Thursday, January 29, 2015 7:27:59 PM(UTC)
Rank: Member Groups: Member Joined: 6/17/2008(UTC) Posts: 921 Thanks: 1 times Was thanked: 70 time(s) in 69 post(s)		Here you go. http://www.twistedpearau...pple-on-AVCC-module.aspx
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oneoclock		#3 Posted : Thursday, January 29, 2015 9:23:49 PM(UTC)
Rank: Member Groups: Member Joined: 12/27/2012(UTC) Posts: 6		Thank avr300. I had already read but the ripple was not equal in form, frequency or amplitude. Is much smaller 0.2 mV pp. and 100 hz. I don´t know if it is the same solution, but I try.
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avr300		#4 Posted : Saturday, January 31, 2015 3:03:02 PM(UTC)
Rank: Member Groups: Member Joined: 6/17/2008(UTC) Posts: 921 Thanks: 1 times Was thanked: 70 time(s) in 69 post(s)		No, the solution suggested will not improve 100Hz. Can you post a picture of your DAC. I'll like to see the layout. To me it sounds like EMI or ground loop.
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avr300		#5 Posted : Saturday, February 7, 2015 6:27:22 PM(UTC)
Rank: Member Groups: Member Joined: 6/17/2008(UTC) Posts: 921 Thanks: 1 times Was thanked: 70 time(s) in 69 post(s)		Or could it be the measurement method (/gear) ?
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Russ White		#6 Posted : Sunday, February 8, 2015 3:02:33 PM(UTC)
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)		Yes that looks like a very clear ground loop. :)
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