videodoor phone

Discussion in 'The Projects Forum' started by sauwawa, Sep 11, 2009.

  1. sauwawa

    Thread Starter New Member

    Sep 11, 2009

    I am new bee to Analog Design :confused: .In mine design we have to provide bidirectional audio and video communcation over 4 wire interface.
    We are using Speakerphone IC , which supports Tip and Ring methodolgy for audio communication.
    IC supports birdirectional sense communcation (having different sense voltages for transmit and receive signals i.e. 6mV and 150mV respectively).

    My doubt is how to interface this transformer based interface to a sigle wire line.I am not sure what considerations to take care for audio transmission over wire line.
    If yes , then what approach will suit best. :eek:

    Please advice.
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