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参数资料
| 型号： | PBL386502SOT |
| 厂商： | ERICSSON |
| 英文描述： | Subscriber Line Interface Circuit |
| 中文描述： | 用户线接口电路 |
| 文件页数： | 3/16页 |
| 文件大小： | 141K |
| 代理商： | PBL386502SOT |
PBL 386 50/2
3
Figure 2. Overhead voltage, V
TRO
, two-
wire port
1
<< R
L
, R
L
= 600
ω
C
R
T
= 60 k
, R
RX
= 60 k
Electrical Characteristics
0
°
C
≤
T
≤
+70
°
C, PTG = Open (see pin description), R
OV
=
∞
, V
= +5V
±
5 %, V
Bat
= -58V to -40V, V
= -32V, R
=32.4 k
, I
L
= 27 mA. R
= 600
, R
= R
= R
= R
=0, R
= 49.9 k
, C
= 47 nF, C
=0.15
μ
F, R
T
= 60 k
, R
SG
= 0 k
, R
RX
= 60 k
, R
R
=
11 k
unless otherwise specified. Current definition: current is positive if flowing into a pin.
Ref
Parameter
fig
Conditions
Two-wire port
Min
Typ
Max
Unit
Overhead voltage, V
TRO
,I
Ldc
> 18mA
2
Active state, R
=
∞
0.2 kHz < f < 3.4 kHz
1% THD, Note 1
f
≤
16kHz, Z
LAC
=200
, Adj. by R
OV
Note 2
0 < f < 100 Hz
active state
Normal polarity:
0.2 kHz < f < 1.0 kHz
1.0 kHz < f < 3.4 kHz
Reverse polarity:
0.2 kHz < f < 3.4 kHz
2.7
V
Peak
On-Hook, I
< 5mA
Over load level, metering
Input impedance, Z
Longitudinal impedance, Z
LOT
, Z
LOR
Longitudinal current limit, I
, I
Longitudinal to metallic balance, B
LM
(IEEE standard 455-1985, Z
=736
)
Longitudinal to metallic balance, B
LME
E
Lo
1.1
V
Peak
V
Peak
5.0
Z
T
/200
20
35
/wire
mA
rms
/wire
18
55
55
dB
dB
3
55
dB
Longitudinal to four-wire balance, B
LFE
E
Lo
V
TX
3
Normal polarity:
0.2 kHz < f < 1.0 kHz
1.0 kHz < f < 3.4 kHz
Reverse polarity:
0.2 kHz < f < 3.4 kHz
0.2 kHz < f < 3.4 kHz
61
61
75
70
dB
dB
61
40
68
50
dB
dB
Metallic to longitudinal balance, B
MLE
V
TR
B
MLE
= 20 · Log ; E
RX
= 0
V
Lo
4
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
= 60 k
, R
RX
= 60 k
B
LFE
= 20 · Log
V
TR
B
LME
= 20 · Log
PBL 386 50/2
TIPX
RINGX
RSN
VTX
R
T
R
RX
E
RX
R
L
V
TRO
I
LDC
C
PBL 386 50/2
TIPX
RINGX
RSN
VTX
R
T
R
RX
V
TX
R
LT
C
V
TR
R
LR
E
Lo
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