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參數(shù)資料
| 型號： | PBL386212QNS |
| 廠商： | ERICSSON |
| 英文描述： | Subscriber Line Interface Circuit |
| 中文描述： | 用戶線接口電路 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 130K |
| 代理商： | PBL386212QNS |
PBL 386 21/2
3
Electrical Characteristics
-40
°
C
≤
T
Amb
≤
+85
°
C, PTG = open (see pin description), V
CC
= +5V
±
5 %, V
Bat
= -58V to -40V, V
Bat2
= -17V, R
LC
=38.3 k
,
I
L
= 22 mA. R
L
= 600
, R
F1
= R
F2
= R
P1
= R
P2
=0, R
Ref
= 49.9 k
, C
HP
= 47 nF, C
LP
=0.15
μ
F, R
T
= 120 k
, R
SG
= 0 k
, R
RX
= 60 k
,
R
R
= 52.3 k
R
OV
=
∞
unless otherwise specified. Current definition: current is positive if flowing into a pin.
Ref
Parameter
fig
Conditions
Two-wire port
Overload level, V
TRO
2
Active state
1% THD
On-Hook, I
Ldc
< 5mA
Note 1, R
OV
=
∞
Input impedance, Z
TR
Note 2
Longitudinal impedance, Z
LOT
, Z
LOR
0 < f < 100 Hz
Longitudinal current limit, I
LOT
, I
LOR
active state
Longitudinal to metallic balance, B
LM
IEEE standard 455-1985, Z
TRX
=736
0.2 kHz < f < 1.0 kHz
1.0 kHz < f < 3.4 kHz
Reverse polarity 0.2 kHz < f < 3.4 kHz 53
Longitudinal to metallic balance, B
LME
3
0.2 kHz < f < 1.0 kHz
B
=20 Log
E
Lo
1.0 kHz < f < 3.4 kHz
V
TR
Reverse polarity 0.2 kHz < f < 3.4 kHz 53
Longitudinal to four-wire balance, B
LFE
3
0.2 kHz < f < 1.0 kHz
B
= 20 Log E
Lo
1.0 kHz < f < 3.4 kHz
V
TX
Reverse polarity 0.2 kHz < f < 3.4 kHz 53
Metallic to longitudinal balance, B
MLE
4
0.2 kHz < f < 3.4 kHz
V
TR
B
MLE
= 20 Log V
RX
= 0
Lo
Min
Typ
Max
Unit
1.0
1.0
V
Peak
V
Peak
Z
T
/200
20
35
/wire
mA
rms
/wire
10
53
53
dB
dB
dB
53
53
75
70
68
dB
dB
dB
53
53
75
70
68
50
dB
dB
dB
dB
40
Figure 2. Overload level, V
TRO
, two-wire
port
1
<< R
L
, R
L
= 600
ω
C
R
T
= 120 k
, R
RX
= 60 k
PBL 386 21/2
TIPX
RINGX
RSN
VTX
R
T
R
RX
E
RX
R
L
V
TRO
I
LDC
C
PBL 386 21/2
TIPX
RINGX
RSN
VTX
R
T
R
RX
V
TX
R
LT
C
V
TR
R
LR
E
Lo
Figure 3. Longitudinal to metallic (B
LME
)
and Longitudinal to four-wire (B
LFE
)
balance
1
<< 150
, R
LR
=R
LT
=R
L
/2=300
ω
C
R
T
= 120 k
, R
RX
= 60 k
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