PBL 385 73
75V
Transorber
HMPSA 92M
a
b
10Ω
HK
470K
12V
0V
470K
0V
10K
3.9M
4x1N4004
MPSA 42
220K
1N
4148
0V
680K
1
+
2.2M
0.1µF
13
0V
620Ω
47nF
47nF
PBL 385 73
14
VDD
DP 11
9
BC550
MIC
10 HKS
AT
1nF
REC
1nF
0V
AM
AR
10
MUTE 9
CMOS
DIALLER
91414
0.33µF
180K
+
100nF
620Ω
14
4
SW1
0V
DC-supply
0V
33pF
6 VSS
P
T
+
12
6
7
11
5
8
3
2
MODE 13
B/M
33pF
5
8 XT
7 XT
100Ω
0V
47nF
3.58MHz
DTMF 12
R15
220nF
18K
47K
C2
2
C1
1
C3
3
R1 R2 R3 R4
15 16 17 18
68K
430Ω
5.6K
430Ω
200R
3K6
680pF
3.3nF
750Ω
47Ω
10k
1
4
7
2
5
8
0
3
6
9
#
R16
15nF
470nF
+
+
100µ
16V
330nF
100µ
6V
0V
100µ
16V
To increase the dc characteristic across the telephone set,
one or two diodes can be connected in pin 4. The third is
to maintain the quick start feature.
+
*
1k
Figure 27. Typical standard telephone application. ( Testboard TB 132 T )
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 73
© 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
14-pin Plastic DIP
14-pin Plastic SO
-40 to +70°C
-40 to +70°C
PBL 385 73/1NS
PBL 385 73/1SOS
15
ERICSSON [ ERICSSON ]
