L3916A Datasheet - STMicroelectronics

L3916A SPEECH AND 14 MEMORY DIALER WITH LED DRIVER

The device consists of the speech and the dialer. It provides the DC line interface circuit that terminates the telephone line, analog amplifier for speech transmission and necessary signals for either DTMF or loop disconnect (pulse) dialing. Note: PAUSE/LND: PAUSE and LND functions are sharing the.

® L3916A SPEECH AND 14 MEMORY DIALER WITH LED DRIVER 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 DI.

L3916A Features

* provided by the PABX or central office. The PAUSE key stores a timed pause in the number sequence. Redial is then delayed until an outside line can be accessed or some other activity occurs before normal signaling resumes. A LND key input automatically redials the last number dialed. FUNCTION PIN D

L3916A Datasheet (124.67 KB)