EM91865A Ver la hoja de datos (PDF) - ELAN Microelectronics
Número de pieza
componentes Descripción
Fabricante
EM91865A
ELAN Microelectronics
EM91865A Datasheet PDF : 20 Pages
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EM91865
13 MEMORY TONE/PULSE DIALER WITH HF, HD, REDIAL
AND VOLUME CONTROL FUNCTION
Preliminary
DTMF CHARACTERISTICS (VSS= 0V , VDD= 3V , Topr = 0oC to 70oC)
Symbol
Description
Min. Typ. Max. Unit
Twist
Twist=20 LOG(COL/ROW)
1
2
3
dB
DC level
Vdc , Vdd=2.0V~5.5V
0.55
-
0.7
Vdd
Dist
Distortion
-
-30
-23
dB
Ac level
Row group
130
155
180 mVrms
Sink current
Vdtmf=0.5V
0.2
-
-
mA
Load resistor
Dist<-23dB
5
-
-
KΩ
Minimum tone duration
Td ( redial )
-
90
-
ms
Minimum intertone pause
Titp ( redial )
-
90
-
ms
ACTUAL FREQUENCY OUTPUT ( fosc =3.579545 Hz )
Standard (Hz )
Output ( Hz )
F1
697
699
F2
770
766
F3
852
848
F4
941
948
F5
1209
1216
F6
1336
1332
F7
1477
1472
Deviation ( % )
+0.28
-0.52
-0.47
+0.74
+0.57
-0.30
-0.34
ELECTRICAL CHARACTERISTIC
(VDD-VSS=3.0V,Fosc=3.58 MHz)
Parameter
Sym.
Min.
Typ.
Max. Unit
Condition
Keyin or release debounce
Pulse rate
Make/Break ratio
Inter-digit pause time
Pause time
Pulse to tone time
Flash break time
Flash Pause time
Tone duration
One key redial Break time
One key redial Pause time
Scan wave width
Scan wave period
Key board scan Period
Auto Insert Pause
Pre-Mute time
Tdb
-
18
- ms
PSR
-
10
- pps
MBR - 40:60 - %
- 33:66 -
Tidp
-
800
- ms
Tp
-
3.6
-S
Tpt
Tf
-
600
-
-
300
- mS
-
100
-
Tfp
-
600
- mS
Td
-
90
- mS
Trb
-
1.2
-S
Trb
-
1
-S
Tsw
-
1/32
- mS
Tsp
-
0.25
- mS
Tksp
-
2.25
- mS
Taip 0
- 3100 mS
Tpm
-
5
- mS
* This specification are subject to be changed without notice.
K2 pin=NR
K2 pin=R-Vss
F1 key
F2 key
F3 key
4.28.1999 10
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