PBL3853N 查看數據表（PDF） - Ericsson
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PBL3853N Datasheet PDF : 16 Pages
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PBL 3853
RL-0-4kΩ
0 ohm when artificial
line is used
5H+5H
Rfeed= 400Ω+400Ω
+
C
ARTIFICIAL
LINE
+
E= 50V
V2
600Ω
VL
V1
C = 1µF when artificial line is used
470µF when not used
IL
+ LINE
MIC
Recelver
cut-off
Z Mic=150Ω
V3
Transmitter
mute Recevler
IDC
tone
input
Z= 500Ω
REC
VDC PBL 3853
see fig 4
- LINE
V5
V4 Z Rec =350Ω
RL-0-4kΩ
0 ohm when artificial
line is used
5H+5H
Rfeed= 400Ω+400Ω
1µF
Uz = 15-16V
+
E= 50V
V2
600Ω
V1
IL
+ LINE
Recelver
cut-off
MIC
Transmitter
mute
IDC
Recevler
tone
input
VL
REC
VDC PBL 3853
see fig 4
V4
- LINE
Z Mic=150Ω
V3
Z= 500Ω
V5
Z Rec 350Ω
Figure 2. Test set up without rectifier
bridge.
Figure 3. Test set up with rectifier bridge.
IL + Line
R 13
R12
R1
1
9
PBL3853
C1
5
-
AC-DC char. adjust
+
7
T2
R1 = 2.7 k
R2 = 22 Ω
R3 = 6.8 k
R4 = 1.8 k
C1 = 150 nF
C2 = 10 nF
C3 = 47 µF
C4 = 220 nF
R2
Transmitter mute
10
+8
T1
+
-
R5 = 75Ω
R6 = 910 Ω
C5 = 150 nF
C6 = 47 nF
4
+V
-
18
R7 = 6.2k
R8 = 560Ω
C7 = 100 nF
C8 = 68 nF
12
Mic
M
TX
13
Rx
16 C9
+
Rec
R9 = 11 k
R10 = 4.7k
VDC R11 = 120k
R12 = 56Ω
C9 = 4.7µF
C10 = 22 µF
D1 = Z 4.5 V
6
14
11 3 2
17
15 Receiver
C4
Tone in
R3
C5
Cut-off
C7
D2 D3
RA
RC
RDTMF
+
R6
R7
R8
R11 C8
R13 = 68Ω
D1
+
C10
RC
RD
= 30 k*
= 11k*
D2 = 1N4148
D3 = 1N4148
T1 = BC178B
T2 = BC178B
DTMF
R5
R10
RB
C3
RD
In
R4
R9
C6
C2
* values for the test set up only
-Line
Figure 4. Reference figure with line length regulation. DIP-package.
2
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