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Simple math question... (Read 2703 times)

Turin Junior Member Offline Posts: 28 Greece	Simple math question... Mar 02^nd, 2010, 7:54am If you need to derive the gain of an differential output in db... What you need to calculate is � db(out-in) or db(out)-db(in) Thanks
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pancho_hideboo Senior Fellow Offline Posts: 1424 Real Homeless	Re: Simple math question... Reply #1 - Mar 2^nd, 2010, 8:03am db(out)-db(in)
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loose-electron Senior Fellow Offline Best Design Tool = Capable Designers Posts: 1638 San Diego California	Re: Simple math question... Reply #2 - Mar 2^nd, 2010, 1:31pm dbm(out) - dbm(in) = dB gain or dbV(out) - dbV(in) = dB gain If you want to be fussy about definition, dB is a ratio, so there is no such thing as "dB" of a singular measurement Just to nitpick!!
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sos Community Member Offline Posts: 32	Re: Simple math question... Reply #3 - Mar 2^nd, 2010, 5:42pm Turin wrote on Mar 2^nd, 2010, 7:54am: If you need to derive the gain of an differential output in db... What you need to calculate is � db(out-in) or db(out)-db(in) Thanks db(out-in) is not correct. Correct would be db(out/in). This is equivalent to db(out)-db(in). Steve
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