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    16 QAM modem circuit diagram

    Abstract: DTMF fsk circuit 8 QAM modem circuit diagram of plcc modem
    Text: NEC Electronics Inc. JJPD77812 2400 bps Fuli-Duplex Modem Controller: Parallel I/O LSI, CMOS Advance Information Description The/uPD77812 is atwo-wire, full-duplex modem con tro l­ ler w ith transm it speeds of 300 bps to 2400 bps. This device com bines intelligent functions, modulatedem odulate function (QAM, DPSK, or FSK), adaptive


    OCR Scan     		PDF uPD77812 The/uPD77812 /JPD77811 juPD77812 22bis /JPD77812 16 QAM modem circuit diagram DTMF fsk circuit 8 QAM modem circuit diagram of plcc modem