pbl38573 ETC-unknow, pbl38573 Datasheet - Page 15

• Manufacturer Part Number: pbl38573
• Description: Speech Circuit Constant Current Feeding Systems
• Manufacturer: ETC-unknow

Specifications subject to change without
notice.
1522-PBL385 73
© Ericsson Components AB
June 1999
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.
Ericsson Components AB
S-164 81 Kista-Stockholm, Sweden
Telephone: [phone]
0V
33pF
180K
a
b
0V
BC550
3.58MHz
33pF
+ +
+
0.33 F
0.1 F
4x1N4004
+
10 HKS
8 XT
7 XT
6 VSS
2.2M
C1
*
1
1
4
7
C2
5
2
8
0
2
DIALLER
680K
CMOS
91414
VDD
C3
6
#
3
9
3.9M
14
3
R1
15
0V
R2
MODE 13
16
DTMF 12
MUTE 9
HK
DP 11
R3
B/M 5
17
R4
18
220K
P
T
3.3nF
680pF
SW1
1N
4148
0V
470K
620
620
MIC
0V
Transorber
Ordering Information:
Package
14-pin Plastic DIP
14-pin Plastic SO
75V
47nF
47nF
100nF
+
1nF
100
16V
470K
MPSA 42
R15
1k
HMPSA 92M
10K
1nF
0V
10
100
9
DC-supply
7
+
100
6V
AM
6
R16
10
-40 to +70 C
-40 to +70 C
5
Temp. Range
18K
47K
8
3
15nF
220nF
AT
1
2
47
430
200R
PBL 385 73
10k
5.6K
47nF
330nF
Part No.
PBL 385 73/1NS
PBL 385 73/1SOS
12
3K6
AR
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.
0V
68K
11
+
+
4
12V
0V
14
100
13
16V
PBL 385 73
430
750
470nF
REC
0V
15