Help with Schematic-Trying to make a MODEM

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  1. - 4th November 2009, 18:28 #1
    FromTheCockpit's Avatar
    FromTheCockpit
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    Post Help with Schematic-Trying to make a MODEM

    Hello, I am trying to build a MODEM to communicate with my PIC. Please note that the modem is in a shape of a module, I am designing a PCB for it. I do not understand few terms though they may be very basic but I do not want to make any mistake as it will an expensive one. I am attaching a snapshot from the datasheet explaining about the voltages on the pins which I am going to connect to my PIC. Could you please advise me if I can connect these pins directly to my PIC or there is some sort of circuit needed between them.
    Before you checkout the attachment please note that VDD_EXT=2.9V
    Many Thanks
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