PBL 385 71
+Line
Cx
1
Cx
15
10
11
PBL 385 71
Rx
AT
AM
AR
Tx in
Tx
+
16
4,5,
12,13
Cx
Cx
+
14
6
8
9
3
2
7
Mute
C6
47nF
R10
6.2k
R7
910Ω
R4
C3
18k
100nF
R11
62k
R3
910Ω
R8
560Ω
15V
R6
75Ω
R12
11k
R5
22k
+
C1
47µF
R9
11k
C5
100nF
C2
15nF
-Line
Cx =these capacitors must be of high voltage type
Telephone system grounded
Mains grounded
Figure 24. Principal balanced solution for a transformerless line interface that can be used in case of two different ground
systems with low disturbance levels.
Information given in this data sheet is believed to be
accurate and reliable. However no responsibility is
assumed for the consequences of its use nor for any
infringement of patents or other rights of third parties
which may result from its use. No license is granted by
implication or otherwise under any patent or patent
rights of Ericsson Components. These products are
sold only according to Ericsson Components' general
conditions of sale, unless otherwise confirmed in writ-
ing.
Specifications subject to change without
notice.
1522-PBL385 71
© Ericsson Components AB
June 1999
Ordering Information
Package
Temp. Range
Part No.
Ericsson Components AB
S-164 81 Kista-Stockholm, Sweden
Telephone: +46 8 757 50 00
16-pin Plastic BW DIP
16-pin Plastic BW SO
-40 to +70°C
-40 to +70°C
PBL 385 71/1NS
PBL 385 71/1SOS
14
ERICSSON [ ERICSSON ]
