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ST3938B

STMicroelectronics
Part Number ST3938B
Manufacturer STMicroelectronics
Description SPEECH - TONE/PULSE DIALER - LED INDICATOR
Published Jul 16, 2008
Detailed Description ST3917A ST3917B SPEECH - TONE/PULSE DIALER - LED INDICATOR SPEECH CIRCUIT 2 TO 4 WIRES CONVERSION PRESENT THE PROPER DC ...
Datasheet PDF File ST3938B PDF File

ST3938B
ST3938B

Overview
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 OUTPUT SUITABLE FOR DYNAMIC TRANSDUCER LINE LOSS COMPENSATION FIXED INTERNALLY BY A.
G.
C.
INTERNAL MUTING TO DISABLE SPEECH DURING DIALING AND EXTERNAL MUTING TO DISABLE TRANSMIT AMPLIFIER DURING CONVERSATION MODE LED INDICATOR EITHER FOR KEYBOARD ILLUMINATION (OR ON-LINE INDICATION) DURING DIALING AND CONVERSATION OR FOR TONE MODE INDICATIO...


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