62
S-301
Block Diagram
40 K
10 K
+
+
40K
10K
Pref
DO+
DO-
Detailed circuit of the output power amp
10K
10K
40 K
40 K
Pref1 is almost PVCC1 / 2
Pref2 is almost PVCC2 / 2
36
35
34
33
32
30
29
28
27
26
25
DO5+
DO4-
DO3-
DO3+
DO2-
DO2+
31
DO4+
1
2
3
4
5
7
8
9
10
11
12
OUT4
IN4-
IN4+
OUT3
IN3-
OUT2
IN2-
IN2+
OUT1
IN1-
6
IN3+
37
38
39
40
41
43
44
45
46
47
48
IN1+
OPIN1+
OPIN1-
OPOUT1
SVCC
VREF
OPIN2-
OPOUT2
PS
PVCC1
DO1+
42
OPIN2+
24
23
22
21
20
18
17
16
15
14
13
CTL
FWD REV GND
TSD-M PVCC2
MUTE123
19
DO5-
DO1-
POWER
SAVE
MUTE123
MUTE4
TSD-M
40 K
40K
40K
40K
10K
10 K
10 K
10K
40K
40K
40K
40K
10K
10K
10 K
10 K
40K
40K
40K
40K
10K
10 K
10 K
10K
40K
40K
40K
40K
10 K
10 K
10 K
10 K
D
D
M
S
C
+
S
W
GND
GND
GND SGND
MUTE4
GND
GND
GND
GND
-
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9
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8
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4
2
9
8
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9
9
2
8
9
4
2
9
8
0
5
1
5
1
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6
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3
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