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參數(shù)資料
| 型號： | L3913 |
| 文件頁數(shù)： | 5/14頁 |
| 文件大?。?/td> | 199K |
| 代理商： | L3913 |
ELECTRICAL CHARACTERISTICS
(continued)
Symbol
LOUDHEARING
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Fig.
V
ea
Loudhearing Supply
I
L
= 25mA
I
L
= 60mA
I
L
= 30 / 50mA V
LS
= 20mVrms
IL = 25 / 60mA V
LS
= 20mVrms
3.5
7.8
19.7
-
3.8
8.2
20.7
3
4.1
8.9
21.7
-
V
V
dB
dB
3
3
3
3
G
ea
G
ea
Loudhearing Gain
8 Steps Programmable Gain
Using Serial Bus
Input Impedance
Z
ih
I
L
= 30mA
24
34
44
K
3
LH
Distortion
LOAD = 100
Offset
Leakage Pin I
EA
Offset Pin AL
Antilarsen Attenuation
I
L
= 50mA
V
lLINE
= 200mVrms
V
lLINE
=350mVrms
-
-
1
4.5
-
-
-
6.25
3
7
%
%
mV
nA
mV
dB
3
3
3
3
3
3
LH
I
LEAK
LH
LH
I
L
= 25mA
I
L
= 25mA
I
L
= 25mA
I
L
= 30mA Pin 9 toV
CC
-120
-
-
5.75
+120
100
150
6.75
RINGER
V
turn-on
V
turn-off
I
S
F
out
Threshold on
Threshold off
Supply Current
Frequencies
Measured at Pin V
IR
14
10.5
-
1450
1160
544
435
3.9
9
15
12
1.2
1458
1166
547
438
4
9.1
17
14
1.6
1465
1172
550
441
4.1
9.2
V
V
4
4
4
4
4
4
4
4
4
V
S
= 17V no load
Pin 38= GND
V
IR
= 32V
Pin 38 = Open
V
IR
= 32V
Pin 39 = GND
Pin 39 = Open
V
IR
= 32V
V
IR
= 32V
V
IR
= 32V BEAT, PAIR
(Pins 38, 39) V
IL
= 1V
mA
Hz
Hz
Hz
Hz
Hz
Hz
V
out
I
IL
Output Voltage Swing
Input Low
30
- 12
-
-
V
μ
A
4
4
- 7
- 1.5
DTMF GENERATION
DTMF Frequency Tolerances
DTMF Level
I
L
= 25mA
I
L
= 25 / 60mA
Low group
High group
Preemphasis
I
L
= 25mA BW = 20kHz
I
L
= 60mA
referred to the line voltage
-0.4
-
+0.25
%
1
-10
-8
1
-8
-6
2
-6
-4
3
dBm
dBm
dB
1
1
1
DTMF Distortion
DTMF Feedback
see MASK fig.6
RX
LH
-
-
- 19
- 2.5
-
81.7
89.2
170.9
440.9
- 9
-
-
-
dB
dB
mA
ms
ms
ms
Hz
dBm
5
5
1
1
1
1
1
1
Flash Operating Current
Transmission Time
Interdigit Time
Transmission Mute
Confidence Tone
Confidence Tone Level
8.3
80.1
87.4
167.5
-
-
TMF
T
IDMF
Tm
MF
83.3
91.5
174.3
Only by Serial Bus
I
L
= 25mA
-
L3913
5/14
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