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CH-X460
FAN8037 (IC581) : CD driver
1. Pin layout & Block diagram
48 47 46 45 44 43
1
2
3
4
5
6
7
8
9
10
11
12
13 14 15 16 17 18
2. Pin function
Pin
Symbol I/O
Function
No.
1
IN2+
I
CH2 op-amp input(+)
2
IN2-
I
CH2 op-amp input(-)
3
OUT2
O
CH2 op-amp output
4
IN3+
I
CH3 op-amp input(+)
5
IN3-
I
Ch3 op-amp input(-)
6
OUT3
O
CH3 op-amp output
7
IN4+
I
CH4 op-amp input(+)
8
IN4-
I
CH4 op-amp input(-)
9
OUT4
O
CH4 op-amp output(+)
10
CTL1
I
CH5 motor speed control
11
FWD1
I
CH5 forward input
12
REV1
I
CH5 reverse input
13
CTL2
I
CH6 motor speed control
14
FWD2
I
CH6 forward input
15
REV2
I
CH6 reverse input
16
SGND
-
Signal ground
17
FWD3
I
CH7 forward input
18
REV3
I
CH7 reverse input
19
CTL3
I
CH7 motor speed control
20
SB
I
Stand by
21
PS
I
Power save
22
MUTE
I
All mute
23
PVCC2
-
Power supply voltage
24
DO7-
O
CH7 drive output(-)
1-32
42 41 40 39 38 37
M
D
s
S
w
C
D
M
D
s
S
w
C
D
s
D
M
S
w
C
D
STAND BY
T.S.D
ALL MUTE
POWER SAVE
19 20 21 22 23 24
Pin
Symbol I/O
No.
25
DO7+
26
DO6-
27
DO6+
28
PGND2
29
DO5-
30
DO5+
31
DO4-
32
DO4+
33
DO3-
34
DO3+
35
PGND1
36
DO2-
37
DO2+
38
DO1-
39
DO1+
40
PVCC1
41
REGOX
42
REGX
43
RESX
44
VREF
45
SVCC
46
IN1+
47
IN1-
48
OUT1
36
35
34
33
32
31
30
29
28
27
26
25
Function
O
CH7 drive output(+)
O
CH6 drive output(-)
O
CH6 drive output(+)
-
Power ground2
O
CH5 drive output(-)
O
CH5 drive output(+)
O
CH4 drive output(-)
O
CH4 drive output(+)
O
CH3 drive output(-)
O
CH3 drive output(+)
-
Power ground1
O
CH2 drive output(-)
O
CH2 drive output(+)
O
CH1 drive output(-)
O
CH1 drive output(+)
-
Power supply voltage
I
Regulator feedback input
O
Regulator output
I
Regulator reset input
I
Bias voltage input
-
Signal supply voltage
I
CH1 op-amp input(+)
I
CH1 op-amp input(-)
O
CH1 op-amp output
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