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AS2522B датащи(PDF) 14 Page - ams AG

номер детали AS2522B
подробное описание детали  Telephone Line Interface and Speakerphone Circuit
PDF  19 Pages
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производитель  AMSCO [ams AG]
домашняя страница  http://www.ams.com
Logo AMSCO - ams AG

AS2522B датащи(HTML) 14 Page - ams AG

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Data Sheet AS2522B
austriamicrosystems
Revision 3.4
Page 14 of 19
DTMF characteristics
ILine=15mA w/o operation of any additional external circuitry, unless other specified, default settings
Symbol
Parameter
Conditions
Min
Type
Max
Units
Test
VMFlow
Tone level low group
at LS
Default
-7
-6
-5
dBm
Y
MFrange DTMF level range
low group at LS
13 steps
Prg. in Service mode
-18/-6
dBm
N
∆VL-H
Preemphasis L-H
Preemphasis=1
2.7
3.2
3.7
dB
Y
UFC
Unwanted frequency
components
300 Hz - 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
VCT-H
Comfort tone handset
Rel to LS
programmable in
service mode
-36
-30
-24
-18
dBr
dBr
dBr
dBr
N
N
N
N
VCT-L
Comfort tone
Loudspeaker
Rel to LS
programmable in
service mode
-15
-9
-3
+3
dBr
dBr
dBr
dBr
N
N
N
N
Ringer
Symbol
Parameter
Conditions
Min
Type
Max
Units
Test
F0
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
F13
F14
F15
Frequency 0
Frequency 1
Frequency 2
Frequency 3
Frequency 4
Frequency 5
Frequency 6
Frequency 7
Frequency 8
Frequency 9
Frequency 10
Frequency 11
Frequency 12
Frequency 13
Frequency 14
Frequency 15
770
1025
1280
0
800
1067
1333
1300
2100
1200
2200
980
1180
1070
1270
1650
1850
2025
2225
830
1110
1385
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
N
Y
Y
Y
N
N
N
N
N
N
N
N
N
N
N
N



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