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參數(shù)資料
| 型號： | L3913 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 199K |
| 代理商： | L3913 |
L3913
MONOCHIP TELEPHONE
ADVANCE DATA
ADJUSTABLE
TERISTIC
ADJUSTABLE AUTOMATIC LINE LENGHT
RECEIVING AND SENDING GAIN CONTROL
(NOT USED IN DTMF), WITH POSSIBILITY
OF FIXED GAIN (PABX).
ADJUSTABLE AUTOMATIC LINE LENGHT
TRACKING ANTISIDETONESYSTEM
ADJUSTABLE DYNAMIC IMPEDANCE
STABILIZEDPOWER SUPPLY FOR PERIPH-
ERALS
CONFIDENCE LEVEL DURING PULSE AND
DTMFDIALLING
RECEIVING AMPLIFIER FOR DYNAMIC OR
PIEZO-ELECTRICEARPIECES
HIGH IMPEDANCE MICROPHONE INPUTS
(80K
MIN. IN SYMMETRICAL AND 40K
MIN. IN ASYMMETRICAL) SUITABLE FOR
DYNAMIC,
MAGNETIC,
OR ELECTRET MICROPHONE
DYNAMIC LIMITING IN SENDING(ANTICLIP-
PING) PREVENTS DISTORTION OF LINE
SIGNALAND SIDETONE
ANTISQUELCH SYSTEM IN SENDING PRE-
VENTS ”ROOM NOISE” TO BE TRANSMIT-
TED, AND IMPROVES THE ANTI-LARSEN
EFFICIENCY
LOUDHEARING PROGRAMMABLE GAIN IN
8 STEPS OF 3 dB USING THE SERIAL BUS,
OR LINEARLYUSING A POTENTIOMETER
ANTILARSEN SYSTEM WHICH DOESN’T
CUT THE RECEIVINGVOICE
ANTIDISTORTION SYSTEM BY AUTOMATIC
GAIN
CONTROL
VERSUS
LOUDHEARING CURRENT
RINGING BALANCED OUTPUT IN DMOS
FOR HIGHER POWER CAPABILITY
4 RINGING TONES ADJUSTABLE WITHOUT
EXTERNAL COMPONENTS
INTERNAL SPEED UP CIRCUIT PERMITS A
FASTER CHARGE OF V
CC
AND V
RAM
CA-
PACITORS
LOGIC BOUNCEELIMINATION
PULSEDIALLING66/33OR 60/40ORDTMF DI-
ALLINGSELECTABLEBYPROGRAMMING PIN
ADJUSTABLE FLASHING DURATION (90ms
or 265ms)
SLOPE OF DC
CHARAC-
PIEZO-ELECTRIC
AVAILABLE
INTERDIGITAL PAUSE
CONFIDENCE TONE (440Hz)
LAST NUMBERRADIAL UP TO 23 DIGITS
STANDARDLOW COST CERAMIC 455KHz
BINARYDATA INPUT IN SERIAL MODE
TEST MODE CAPABILITY
DESCRIPTION
The L3913 monochip is a BIPOLAR CMOS-
DMOS (BCD) integrated circuit that performs all
the speech and line interfacefunctions required in
an electronic telephone set, the ringing function
with 4 melodies, the pulse and DTMF dialling with
redial, the loudhearingwith antilarsen and antidis-
tortion systems, a keyboard interface with the
possilbility to interface with an external microcon-
troller using the internal serial bus, and a power
supply for peripheral.
This is advanced informationon anew product now in development or undergoing evaluation.Details are subject to change without notice.
September 1993
PLCC-44
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EA
IEA
AL
VRAM
VE
VCC
LS
VEA
HP2
GND
HP1
BEAT
PAIR
CK
VIR
OUT1
OUT2
ZALL
REC
ZALC
E1
E2
M
M
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D93TL022
PIN CONNECTION
(top view)
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| L3916A | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SPEECH AND 14 MEMORY DIALER WITH LED DRIVER |
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