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L3914A

Part Number	L3914A
Manufacturer	ST Microelectronics
Description	(L3914A - L3934A) SPEECH AND 14 MEMORY DIALER
Published	Feb 15, 2007
Detailed Description	www.DataSheet4U.com L3914A L3924A - L3934A SPEECH AND 14 MEMORY DIALER WITH HOLD FUNCTION ADVANCE DATA SPEECH CIRCUIT ...
Datasheet	L3914A PDF File

Overview

www.
DataSheet4U.
com L3914A L3924A - L3934A SPEECH AND 14 MEMORY DIALER WITH HOLD FUNCTION ADVANCE DATA SPEECH CIRCUIT 2 TO 4 WIRES CONVERSION PRESENT THE PROPER DC PATH FOR THE LINE CURRENT AND THE FLEXIBILITY TO ADJUST IT AND ALLOW PARALLEL PHONE OPERATION PROVIDES SUPPLY WITH LIMITED CURRENT FOR EXTERNAL CIRCUITRY SYMMETRICAL HIGH IMPEDANCE MICROPHONE INPUTS SUITABLE FOR DYNAMIC ELECTRET OR PIEZOELECTRIC TRANSDUCER ASYMMETRICAL EARPHONE OUTPUT SUITABLE FOR DYNAMIC TRANSDUCER LINE LOSS COMPENSATION INTERNAL MUTING TO DISABLE SPEECH DURING DIALING HOLD FUNCTION FOR PARALLEL PHONE WITH 400ms DELAY TO PREVENT FALSE RELEASE DIALER CIRCUIT 32 DIGITS FOR LAST NUMBER REDIAL BUFFER 18 DIGITS FOR 13 MEMORY REDIAL ALLOW MIXED MODE DIALING IN EITHER TONE OR PULSE MODE PACIFIER TONE PROVIDES AUDIBLE INDICATION OF VALID KEY PRESSED IN A BUZZER OR/AND IN THE EARPHONE TIMED PABX PAUSE FLASH INITIATES TIMED BREAK: MASK OPTIONS WITH 585ms,300ms,100ms CONTINUOUS TONE FOR EACH DIGIT UNTIL KEY RELEASE ...

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