ST3938A

ST3917A ST3917B SPEECH - TONE/PULSE DIALER - LED INDICATOR SPEECH CIRCUIT 2 TO 4 WIRES CONVERSION PRESENT THE PROPER DC PATH FOR THE LINE www.DataSheet4U.com CURRENT AND THE FLEXIBILITY TO ADJUST IT ANDALLOWPARALLEL PHONE OPERATION SYMMETRICAL HIGH IMPEDANCE MICROPHONE INPUTS SUITABLE FOR DYNAMIC, ELECTRET OR PIEZOELECTRIC TRANSDUCER ASYMMETRICAL EARPHONE OU...