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參數(shù)資料
| 型號： | L3235N |
| 英文描述： | HIGHLY INTEGRATED SLIC KIT TARGETED TO PABX AND KEY SYSTEM APPLICATIONS |
| 中文描述： | 高度集成的用戶接口盒針對交換機與關(guān)鍵系統(tǒng)應(yīng)用 |
| 文件頁數(shù)： | 18/25頁 |
| 文件大小： | 3164K |
| 代理商： | L3235N |
ELECTRICAL CHARACTERISTICS
(Test condition: refer to the test circuit of the fig. 16; V
CC
= 5V,
V
SS
= -5V, V
bat
= -48V, T
amb
= 25
°
C, unless otherwise specified)
Note:
Testing of all parameters is performed at 25
°
C. Characterization, as well as the design rules used
allow correlation of tested performance with actual performance at other temperatures. All pa-
rameters listed here are met in the range 0
°
C to +70
°
C.
Symbol
STAND-BY
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Fig.
V
ls
Output Voltage at TIP/RING
pins
Short Circuit Current
I
LINE
= 0
35.7
39
V
I
LCC
Stand-by, SBY = 1
2
3
4
mA
DC OPERATION
V
lP
Output Voltage at TIP/RING
pins
Current Progr.
Current Progr.
On-hook Threshold
Off-hook Threshold
GK Detector Threshold
Ground Key Current
Limitation
Ground Key Threshold
Overloap
Max. Output Current at
TIP/RING
Supply Current from V
CC
Supply Current from V
SS
Supply Current from V
bat
I
LINE
= 0
I
LINE
= 50mA
I
lim
Prog. = 70mA
8.4K
< R
LIM
< 33K
35.7
35.2
63
20
39
39
77
70
5
V
V
I
lim
I
lim
I
O
I
f
I
lgk
70
mA
mA
mA
mA
mA
mA
10
10
13
17
22
Gklim
RING to BGND
Gkov
Gklim-Ilgk
1
mA
I
max
I
lim
= 70mA
90
140
mA
IV
CC
IV
SS
IV
bat
I
line
= 0
Iline = 0
Iline = 0
6.2
1.6
2.8
8
mA
mA
mA
2.1
3.6
AC OPERATION
Z
tx
Z
rx
R
l
Thl
G
s
G
sf
G
sl
G
r
G
rf
G
rl
Sending Output Impedance
Receiving Input Impedance
2W Return Loss
Trans Hybrid Loos
Sending Gain
Flatness
Linearity
Receiving Gain
Flatness
Linearity
Psoph. Noise at Tx
Psoph. Noise at Line
Relative to V
bat
versus Line
Terminal versus Tx Terminal
Relative to V
cc
and V
ss
versus Line Terminal versus
Tx Terminal
L/T Conversion measured at
line Terminals
T/L Conversion Measured at
Line Terminals
pin 9 (Tx)
pin 12 (Rx)
f = 300 to 3400Hz
f = 300 to 3400Hz
f = 1020Hz I
l
= 20mA
f = 300 to 3400Hz
-20dB to 10dBm
f = 1020Hz I
l
= 20mA
f = 300 to 3400Hz
-20dBm to +4dBm
10
M
dB
dB
dB
dB
dB
dB
dB
dB
dBmp
dBmp
dB
dB
dB
dB
1
22
22
36
36
-12.1
A1
A2
A3
-11.9
-0.2
-0.2
5.8
-0.2
-0.2
-12.3
0.2
0.2
6.2
0.2
0.2
-78
-70
6
A4
Np4W
Np2W
S
vrr
-90
-82
-30
-24
-20
-14
f = 1020Hz
V
S
= 100mVpp
f = 1020Hz
V
S
= 100mVpp
A5
S
vrr
L
tc
f = 300 to 3400
I
line
= 20mA
f = 300 to 3400
I
line
= 20mA
49
53(*)
46(*)
dB
dB
dB
A6
T
lc
A7
(*) Selected parts L3235NC
L3234 - L3235N
18/25
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