HI all,
I am new to playing in the audio / video world so forgive me if I ask
dumb questions! .
Currently interfacing to a TI AIC23 (
http://focus.ti.com/lit/ds/symlink/tlv320aic23b.pdf ) audio codec
with consumer line level inputs and outputs.
What I need to do is make a PCB that will convert these 1Vrms I/O's to
interface with Professional equipment (+4dbu).
So I will need to PAD the input to the codec ( +4dbu Professional line
level ---- -10dbv Consumer line level) right? 12db pad?
and then I need to amplify the output of the codec (-10 dbv Consumer
line level ---- +4dbu Professional line level) 12db amp.
Here is the catch, I would like to be able to still also interface my
AIC23 to consumer equipment or professional equipment and select the
pad/amp via software control.
Does anyone know of any ICs that may help me out to do this? maybe
some digitally controlled pots?
I need to fit this circuitry on a 3" x 3" board to fit in the box.
Any suggestions are greatly appreciated
thanks
-Bill