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PDF EM91415C Data sheet ( Hoja de datos )
| Número de pieza | EM91415C | |
| Descripción | TONE/PULSE SWITCHABLE DIALER | |
| Fabricantes | ELAN Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de EM91415C (archivo pdf) en la parte inferior de esta página. Total 25 Páginas | ||
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EM9E1M4911541S5ESRERIEIESS
TONE/PULTSOENSEW/PUITLSCEHSAWBITLCEHDAIBALLE EDRIAWLEIRTWHILTHCDLCIDNITNETRERFFAACCEE
AND DUAANDL-DTUOANLE-TOMNEELMOEDLYODGYEGNEENRERAATTOORR
GENERAL DESCRIPTION
The EM91415 is a series of tone/pulse switchable dialers that is composed of T/P dialer and T/P dialer with
13 set memories. The EM91415 series provide necessary functions of telephone set for application in any
environment, such as Pulse dialing, Tone (DTMF) dialing, Handfree dialing, keying tone ,and lock functions.
The lock function is designed to inhibit toll dialing operation. Beside this, melody generator, ring detector and
SDO (Serial Data Output) functions are provided in advance version. Melody generator will output dual-tone
music in line hold duration. Ring detector can prevent illegal dialing from pocket dialer. The SDO is designed
to drive LCD driver and voice synthesizer. In this application, the dialing numbers can be displayed on LCD
screen with EM32100 ( or EM32116 ).
FEATURES
• Tone/Pulse switchable.
• Wide operating voltage from 2.0 V to 5.5 V.
• Low operating current, 0.15 mA (Pulse) and 0.3 mA (Tone) typically.
• Adding resistor on keyboard scan pin that can select many telephone specifications, such as : Pulse rate,
M/B ratio, Flash time, lock dialing functions.
• SDO function supports LCD driver and voice synthesizer to indicate dialing numbers.
• Line hold function is designed for stopping conversation temporality.
• Melody generator provides music on hold function.
• Lock function provides conventionality key lock and password lock operations.
• Ring detector is designed to prevent illegal dialing from pocket dialer.
• 13 set one touch or (3 set one touch and 10 set two touch) repertory memory, each one can hold data up to
16 digits.
• A 32-digit LNB (last number) redial memory.
• Keytone function provides rapidly keying recognition.
• Handfree function provides on-hook dialing and speakerphone application.
• Pause and P-T time are fixed to 3.6 seconds.
• Tone duration and inter-tone pause time are fixed to 98 ms.
• Using 3.579545 MHz crystal or ceramic resonator.
• Package forms: PDIP, skinny.
ORDERING INFORMATION
Versions list and function outline
VERSION
LNB
KT
EM91415A
√√
EM91415B
√√
EM91415C
EM91415D
√√
√√
Note : PDP = Pocket Dialer Prevented
HOLD(music)
√
√
√
√
LOCK
√
√
√
√
HF SDO(LCD) PDP
√
√√
√√
√
* This specification are subject to be changed without notice.
10.1.1997 1
1 page  
EM91415 SERIES
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
AND DUAL-TONE MELODY GENERATOR
FUNCTION DESCRIPTIONS
Dialing signal selection
The EM91415 series incorporated a special keyboard scanning function that is connecting a resistor (typically
is 560 Kohms) on keyboard scan pin to select many telephone specifications. The specifications are described
as following :
a. Mode
ROW1 Mode
R-Vdd 20 PPS
NR Tone
R-Vss 10 PPS
c. Flash time
ROW3 ROW4
NR NR
NR R-Vss
R-Vss
NR
R-Vss R-Vss
e. Lock number
COL2 COL3
NR NR
NR R-Vss
R-Vss
NR
R-Vss R-Vss
Tf (ms)
600
100
80
300
Lock number
none
0
9
0.9
b. M/B ratio
ROW2 MBR (%)
NR 40:60
R-Vss
33:66
d. Lock control method
COL1
Control method
R-Vdd
key lock
NR none lock
R-Vss
password lock
f. ROW5/SDO pin functions
COL5 ROW5 or SDO Pin
NR SDO
R-Vss
ROW5
(Note): If select SDO function, the memory type is
(1T*3+2T*10)
If select ROW function, the memory type is
(1T*3+2T*10) and (1T*13)
Normal dialing
Directly keying digital key on keyboard which number can be dialing output and stored in LNB memory
automatically. Operating procedure described as follow :
• To select Pulse or Tone mode.
• Off-hook or turn on HF function.
• Keying d1, d2, .. , dn. The “d” expressed digital keypad that included 1~9, *, 0, #, P, and P→T keys. The “n”
expressed unlimited.
• The numbers d1, d2, .. , dn will be dialed out in Pulse or Tone mode as selection.
LNB redial memory
Storing:
In normal dialing mode, every digital key was entry which number will be stored in LNB memory
automatically. If entry digits are more than 32 digits, the redial function of LNB memory will be disabled.
Otherwise, these numbers stored in LNB memory can be redial output.
* This specification are subject to be changed without notice.
10.1.1997 5
5 Page 
EM91415 SERIES
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
AND DUAL-TONE MELODY GENERATOR
keyboard entry. In actual application of the RMUTE pin is recommended connection to microphone of the
phone handset to prevent that the dialing signal (DTMF) is coupling by the Microphone of the phone handset.
(such as pocket dialer)
i. In idle state, HKS is from “High” to “Low” (pick up handset action).
ii. In idle state, turn on handfree function.
iii. The flash operation ( F key ).
* This specification are subject to be changed without notice.
10.1.1997 11
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet EM91415C.PDF ] | |
Hoja de datos destacado
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