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AS2525F Datasheet(PDF) 22 Page - ams AG

Part # AS2525F
Description  Single-Chip Handsfree Phone CMOS Integrated Circuit
PDF  28 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS2525F Datasheet(HTML) 22 Page - ams AG

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Datasheet AS2525
austriamicrosystems
Revision 2.1
Page 21 of 27
DTMF
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
DF
Frequency Deviation
Deviation of ceramic resonator
is not included
1.2
%
VMF
MF Tone Level at LS
(Low Group)
Default
-4.5
-5.5
-6.5
dBm
VMF-RANGE MF Tone Level Range at LS
(Low Group)
13 steps
-18/-6
dBm
∆VL_H
Pre-emphasis, Low to High
2.0
2.6
3.2
dBr
VUFC
Unwanted Frequency
Components
300 Hz....4.3 kHz
4.3 kHz…7 kHz
7 kHz....10 kHz
10 kHz…14 kHz
14 kHz....28.5 kHz
28.5 kHz....40 kHz
-40
-46
-52
-58
-70
-80
dBm
dBm
dBm
dBm
dBm
dBm
tTD
Tone Duration, Minimum
Default
80
82.3
85
ms
tITP
Inter Tone Pause, Min.
Default
80
82.3
85
ms
tTR
tTR
Tone Rise Time
Tone Fall Time
From 10% to 90% amplitude
From 90% to 10% amplitude
5
5
ms
ms
VCT
Comfort Tone Level, RO
Relative to LS, 4 steps
-36
-18
dBr
LD Dialing
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
tDR
Dialing Rate
Default
Option
9.53
10
20
10.5
pps
pps
t/B
Break Period
Default
Option
Option
57
61.2
66
33
63
ms
ms
ms
tM/
Make Period
Default
Option
Option
38
40.8
33
16.5
42
ms
ms
ms
tPDP
Pre-Digit Pause
35
ms
tIDP
Inter-Digit Pause
800
880
ms



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