PBL 3881
Maximum Ratings
Parameter
Symbol
Min
Max
Unit
Speech switch supply current
Speaker amplifier supply current
Operating temperature
ID
I+L
TAmb
10
200
70
mA
mA
°C
-20
-55
Storage temperature
TStg
125
°C
I
D
+
GND 16
15 V
+
V
+
PBL 3881
11 F4out
10k
+
In case VRef is used for
auxiliary circuits,
isolate as shown.
in
–
+
Figure 2. Isolation and
V
10µF
Ref
measurement of VRef
.
Ref fig No.2.
+
V
+
100µF/16V
ID
16
10
GND
+
15
V
+
10 µF
+
V
10 µF
+
Rx
out
Rxout
V
Txout
5
3
Tx
out
R
Rxout
F
1
R
out
Txout
PBL 3881
0.22 µF
1 µF
+
4
1
2
F
I
3.3 µF
+
in
Rxin
Rx
12
13
in
4.7 µF
+
V
Rxin
2
Tx
in
Rx
9
Tx
6
+
Det
I
Det
CMP
8
CTR
14
Txin
N
1 µF
Det
7
V
Txin
C
C
TxDet
RxDet
R
CTR
0.1µF
50 kΩ
I
I
I
I
NDet
TxDet
RxDet
CTR
V
V
V
NDet
Figure 3. Test circuit.
CMP
TxDet
V
RxDet
V
CTR
Reference figure No. 3.
ID
+
15 V
GND 16
13
V
+
PBL 3881
+
+
1
1 µF
3.3 µF
Rx
in
12
V
Rxin
2 Tx
V
in
Txin
N
Tx
6
CMP
8
Rx
Det
Det
7
Det
9
I
I
0.1µF
TxDet
RxDet
50kΩ
I
NDet
V
V
V
V
TxDet
NDet
Figure 4. Test circuit.
RxDet
CMP
Reference figure No. 4.
2
ERICSSON [ ERICSSON ]
