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AS2540 数据表(PDF) 13 Page - ams AG

部件名 AS2540
功能描述  Remote Controlled Single-Chip-Telephone
PDF  18 Pages
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制造商  AMSCO [ams AG]
网页  http://www.ams.com
标志 AMSCO - ams AG

AS2540 数据表(HTML) 13 Page - ams AG

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



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