參數(shù)資料
型號(hào): PBL38621-2
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): 15/16頁
文件大?。?/td> 130K
代理商: PBL38621-2
PBL 386 21/2
15
A:
I
L
(@V
TR
=0V)=I
LProg
B:
Constant current
C:
I
LConst
(typ) = I
LProg
= 10
3
- 4·10
-3
R
LC
V
TR
=|V
Bat
|-V
OH
-50·I
LProg
D:
R
Feed
=2·25
E:
V
TROpen
=|V
Bat
|-V
OH
Figure 12. Battery feed characteristics (without the protection resistors on the line).
Figure 13. CODEC receive interface.
PBL386 21/2
CODEC
+
_
VTX
RSN
R
RX
R
T
R
R
I
RRX
I
RSN
I
RT
I
RR
U
REFcodec
+1.25 V
I
DC-GND
DC characteristics
C
D
B
E
A
V
TR
[V]
I
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