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* Independent adjustment of DC resistance and AC impedance. ECM or dynamic microphone can be used. DTMF signal interface. Mute fun.
Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol VL TXGA1 TXGA2 RXO RXGA MICMIC+ CST GND RXI MF MUTE VCC VST AGC RDC Description Positive power line and TX Amp output TX gain adjustment TX gain adjustment RX output RX gain adjustment Mic(-) input.
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