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Ludwig Cloetens

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Posted - 22 Mar 2005 :  15:29:42  Show Profile  Email Poster
Is the schematic available of the audio inputs around the 4202 Codec on the AGX/VGX board. I cannot find a datasheet for the TI TY262A that is connected to most audio inputs, does anyone have the datasheet available?

I am trying to connect the audio in and out of a GSM module to the AGX/VGX, I can remove the speaker driver LM4863 and replace a few resistors by zero ohm links to connect the line outputs to 2 header pins (probably the production option mentioned in the manual) and make 2 header pins available for the GSM audio links. I can reroute the MONO output of the codec to a free header pin and connect to the GSM audio input. Now I would like to connect the GSM audio output via a free header pin to the PHONE input, and here the problem starts.
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