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direct sampling

Posted: Fri Jul 24, 2015 2:01 am
by ejones
i dont fully understand what direct sampling is.

Re: direct sampling

Posted: Fri Jul 24, 2015 2:58 pm
by P-40 Warhawk
It's like a Crystal Radio that was a direct sampling device that go's almost to radios pre-history . It was used for AM radio . It was just a L/C circuit that tuned in a radio station and ran the RF a crossed a diode turning the RF to audio that went to ear phones . Direct sampling is were the RF with out any processing goes to the A/D converter.

Re: direct sampling

Posted: Sat Jul 25, 2015 4:08 am
by ejones
and to be sure Q branch and I branch are pins on the chip or am i wrong.