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參數(shù)資料
| 型號： | L3916AD |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | LED驅(qū)動器 |
| 英文描述： | SPEECH AND 14 MEMORY DIALER WITH LED DRIVER |
| 中文描述： | 言論和14記憶體，LED驅(qū)動撥號器 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 124K |
| 代理商： | L3916AD |
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 CUR-
RENT FOR EXTERNAL CIRCUITRY
SYMMETRICAL HIGH IMPEDANCE MICRO-
PHONE INPUTS SUITABLE FOR DYNAMIC
ELECTRET
OR
TRANSDUCER
ASYMMETRICAL
EARPHONE
SUITABLEFOR DYNAMIC TRANSDUCER
LINE LOSS COMPENSATION
INTERNAL MUTING TO DISABLE SPEECH
DURING DIALING
LIGHTED DIAL LED CONSUMING 25% OF
LINE CURRENT
DIALER CIRCUIT
32 DIGITS FOR LAST NUMBER REDIAL
BUFFER
18 DIGITSFOR 13 MEMORY REDIAL
ALLOW MIXED MODE DIALING IN EITHER
TONEOR PULSEMODE
PACIFIER TONE PROVIDES AUDIBLE INDI-
CATION OF VALID KEY PRESSED IN A
BUZZER OR/AND IN THE EARPHONE
TIMED PABX PAUSE
FLASHINITIATESTIMED BREAK: 585ms.
CONTINUOUS TONE FOR EACH DIGIT UN-
TIL KEY RELEASE
USES
INEXPENSIVE
RAMIC RESONATOR
POWERED FROM TELEPHONE LINE, LOW
OPERATING VOLTAGE FOR LONG LOOP
APPLICATION
PIEZOELECTRIC
OUTPUT
3.579545MHz
CE-
DESCRIPTION
The device consists of the speech and the dialer.
It provides the DC line interface circuit that termi-
nates the telephone line, analog amplifier for
speech transmission and necessary signals for
either DTMF or loop disconnect(pulse) dialing.
March 2000
PIN CONNECTION
(Top view)
KEYPAD CONFIGURATION
SO28
ORDERING NUMBER: L3916AD
Note:
PAUSE/LND:
PAUSE and LND functions are sharing the same key with different
sequence.Hereafter, PAUSEandLND keysarereferringtothesame
key.
1/14
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