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参数资料
| 型号： | PBL386612QNT |
| 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： | 4/18页 |
| 文件大小： | 115K |
| 代理商： | PBL386612QNT |
PBL 386 61/2
4
Preliminary
Parameter
fig
Conditions
Min
Typ
Max
Unit
Four-wire to longitudinal balance, B
FLE
4
active state
E
RX
B
FLE
= 20 LogV
Lo
0.2 kHz < f < 3.4 kHz
|Z
TR
+ Z
L
|
r = 20 Log
|Z
TR
- Z
L
|
0.2 kHz < f < 0.5 kHz
0.5 kHz < f < 1.0 kHz
1.0 kHz < f < 3.4 kHz, Note 3
active, I
L
= 0
active, I
L
= 0
active, I
L
= 0
40
dB
Two-wire return loss, r
25
27
23
dB
dB
dB
V
V
V
TIPX idle voltage, V
Ti
RINGX idle voltage, V
Ri
V
TR
- 1.5
V
Bat
+
2.7
V
Bat
+4.2
Four-wire transmit port
(VTX)
Overload level, I
LDC
≥
10 mA
On hook I
LDC
≤
5 mA
Output offset voltage,
V
TX
Output impedance, z
TX
Four-wire receive port
(RSN)
Receive summing node (RSN) dc voltage
Receive summing node (RSN) impedance
Receive summing node (RSN)
current (I
RSN
) to metallic loop current (I
L
)
gain,
α
RSN
5
Load impedance > 20 k
,
1% THD, Note 4
1.55
0.7
-60
V
Peak
V
Peak
mV
60
20
0.2 kHz < f < 3.4 kHz
5
I
RSN
= 0 mA
0.2 kHz < f < 3.4 kHz
0.3 kHz < f < 3.4 kHz
GND +25
10
mV
50
400
ratio
Frequency response
Two-wire to four-wire, g
2-4
6
relative to 0 dBm, 1.0 kHz. E
RX
= 0 V
0.3 kHz < f < 3.4 kHz
f = 8.0 kHz, 12 kHz, 16 kHz
-0.15
-0.5
0.15
0
dB
dB
-0.1
Figure 4. Metallic to longitudinal and
four-wire to longitudinal balance
1
<< 150
, R
LT
= R
LR
= R
L
/2
=300
ω
C
R
T
= 120 k
, R
RX
= 120 k
Figure 5. Overload level, V
TXO
, four-wire
transmit port
1
<< R
L
, R
L
= 600
ω
C
R
T
= 120 k
, R
RX
= 120 k
Ref
PBL 386 61/2
TIPX
RINGX
RSN
VTX
R
T
R
RX
E
RX
R
LT
C
V
TR
R
LR
V
Lo
PBL 386 61/2
TIPX
RINGX
RSN
VTX
R
T
R
RX
R
L
I
LDC
C
E
L
V
TXO
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