PBL38620-2 Ericsson, PBL38620-2 Datasheet - Page 15

• Manufacturer Part Number: PBL38620-2
• Description: Subscriber Line Interface Circuit
• Manufacturer: Ericsson

Figure 13. Battery feed characteristics (without the protection resistors on the line).
A:
B:
C:
I
Constant current
I
V
L
LConst
A
(@V
TR
=|V
(typ) = I
TR
Bat
=0V)=I
|-V
OH
LProg
-50·I
LProg
=
LProg
10
R
LC
3
- 4·10
Figure 14. CODEC receive interface.
-3
DC characteristics
PBL 386 20/2
B
V
TR
[V]
I
+1.25 V
DC-GND
D:
E:
RSN
VTX
R
V
TROpen
Feed
I
RSN
=2·25
=|V
I
R
R
RT
I
RR
T
R
I
RRX
Bat
|-V
C
D
OH
R
E
RX
PBL 386 20/2
+
_
CODEC
U
REFcodec
15