AS2540Q AMSCO [austriamicrosystems AG], AS2540Q Datasheet - Page 13

• Manufacturer Part Number: AS2540Q
• Description: Remote Controlled Single-Chip-Telephone
• Manufacturer: AMSCO [austriamicrosystems AG]

Data Sheet AS2540
LD characteristics
DTMF characteristics
Ringer characteristics
Revision 3.1
Symbol
t(td)
Symbol
V
UFC
t(td)
t(itp)
t(mo)
V
Symbol
f1
f2
f3
f
f
t
MIN
MAX
DT
MFlow
CT-H
V
f
L-H
Parameter
Flash Duration
Parameter
Tone Level Low Group
LS
Preemphasis L-H
Unwanted Frequency
Components
Frequency Deviation
Tone Duration
Inter Tone Pause
Mute Overhang
Comfort Tone (DTMF)
Parameter
Frequency 1
Frequency 2
Frequency 3
Min. Det. Frequency
Max. Det. Frequency
Detection Time
Conditions
DPN pin status can be directly
controlled via serial interface
Conditions
300Hz - 4.3kHz
4.3kHz - 7kHz
7kHz - 10kHz
10kHz - 14kHz
14kHz - 28.5kHz
28.5kHz – 40kHz
ROH rel. to LS
Conditions
Initially
1025
1280
Min
Min
Min
770
2.0
80
80
12
68
1067
1333
82.3
82.3
Typ
Typ
Typ
800
102
2.6
-30
13
70
-6
austriamicrosystems
1110
1385
Max
Max
Max
830
3.2
-40
-46
-52
-58
-70
-80
1.2
85
85
14
75
6
Units
Units
Units
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dB
ms
ms
ms
Hz
Hz
Hz
Hz
Hz
ms
dB
%
Page 13 of 18
Test
Test
Test
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
Y
Y
Y
Y
Y
N