PBL 385 71
Maximum Ratings
Parameter
Symbol
Min
Max
Unit
Line voltage, tp = 2 s
VL
0
18
V
Line current, continuous, DIP (batwing) package
Line current, continuous, SO (batwing) package (dependent on mounting)
Operating temperature range
IL
IL
TAmb
TStg
0
0
-40
-55
130
120
+70
+125
mA
mA
°C
Storage temperature range
°C
No input should be set on higher level than pin 6 (+C).
MUTE
VM
R
0
= 0 - 4kΩ
IM
L
ohm when artificial
line is used
R
= 400Ω + 400Ω
feed
I
L
ARTIFICIAL
LINE
Z
= 350Ω
+ LINE
Mic
+
MIC
5H + 5H
C
V
3
PBL 38571
with external
components
See fig. 4
V
2
600Ω
+
V
E = 48.5V
L
Z
= 350Ω
Rec
V
V
1
REC
4
- LINE
C = 1µF when artificial line is used
470µF when no artificial line
Figure 2. Test set up without rectifier
bridge.
MUTE
VM
IM
Uz= 15-16V
I
L
R
= 0 - 4kΩ
L
R
= 400Ω + 400Ω
feed
+ LINE
Z
= 350Ω
Mic
+
5H + 5H
MIC
1µF
V
3
PBL 38571
with external
components
See fig. 4
V
2
600Ω
+
V
L
E = 50.0V
Z
= 350Ω
Rec
V
V
REC
4
1
- LINE
Figure 3. Test set up with rectifier
bridge.
+Line
1
15
PBL 385 71
R16
10
11
R14
310Ω
Mic.
2.7k
AM
AT
AR
350Ω
REC
350Ω
16
4,5,
12,13.
14
+
6
8
7
9
3
2
C6
47nF
R4
18k
R7
910Ω
R10
6.2k
C3
100nF
Mute
(active low)
R11
62k
R3
910Ω
R8
560Ω
R5
22k
R12
11k
R6
75Ω
Rg
C2
15nF
R9
11k
+
C1
47µF
Figure 4. Circuit with external compon-
ents for test set up.
C5
100nF
-Line
2
ERICSSON [ ERICSSON ]
