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參數(shù)資料
| 型號： | L3235T |
| 英文描述： | Subscriber Line Interface Circuit |
| 中文描述： | 用戶線接口電路 |
| 文件頁數(shù)： | 8/26頁 |
| 文件大?。?/td> | 457K |
| 代理商： | L3235T |
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ELECTRICAL CHARACTERISTICS
(Test conditions:V100 = +100V,V
CC
= +5V, T
amb
= 25
°
C, unless oth-
erwise specified)
Note:
Testing of all parameteris performed at 25
°
C. Characterisation,as well as the design rule usedal-
low correlation of tested performance with actual performances at other temperatures. All pa-
rameters listed here are met in the range 0
°
C to +70
°
C. For applications requiring operations in
the standard temperature range (0
°
C to 70
°
C) use L3234. If operations are required in the ex-
tended temperaturerange (-40
°
C to 85
°
C), use theL3234T.
Symbol
STANDBY MODE: CS = ”0”
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Fig
I
S
(V100)
I
S
(V
CC
)
V
SOUT1
V
SOUT2
Z
SOUT1
Z
SOUT2
Consumption
VA = 950mVrms; 50Hz
45
560
100
800
6
μ
A
μ
A
V
V
k
k
%
dB
DC Output Voltage
VA = 950mVrms; 50Hz
92
70
70
Output Impedance
6
Z
OUT
Matching
Harmonic Distortion During
Emission
15
-40
THD
V
LINE
< 6dBm; f = 1kHz
-46
7
RINGING PHASE: CS = ”1”
DC OPERATION
I
R
(V100)
I
R
(V
CC
)
V
ROUT1
V
ROUT2
V
IH
I
IH
(CS = 0)
V
IL
I
IL
(CS = 0)
I
lim
AC OPERATION
Consumption
Z
LINE
=
∞
VA = 950mVrms; 50Hz
VA = 0V
2.5
2.2
5
3
56
56
mA
mA
V
V
V
μ
A
V
μ
A
mA
DC Output Voltage
44
44
2.0
Threshold Voltage on the
Logical Input CS
VA = 950mVrms; 50Hz
1
8
0.8
1
150
DC Line Current Limitation
VA = 0V
70
12
V
OUT1
/VA
V
OUT2
/VA
V
OUT1
-V
OUT1
Ringing Gain
Z
LINE
= 2.2
μ
F + 1k
VA = 0dBm
ZLINE = 2.2
μ
F + 1k
VA = 950mVrms; 50Hz
VA = 950mVrms; 50Hz
VA = 950mVrms; 50Hz
I
LINE
< 50mArms
29.5
29.5
57
30
30
60
dB
dB
Vrms
9
Ringing Signal
9
THD V
LINE
Z
IN
(VA)
Z
OUT
Harmonic Distortion
Input Impedance
Differential Output Impedance
5
%
k
40
10
11
20
TEST CIRCUITS
Figure6.
L3234 - L3235
8/26
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