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KD-SX992R/KD-SX921R
QQ
3 7 63 1515 0
LA6579H-X (IC501) : 4-Channel bridge driver
1. Pin layout & Block diagram
1
VIN1-A
2
VIN1+A
3
VCCP1
4
VO1+
5
VO1-
6
VO2+
7
VO2-
TE
L 13942296513
FR
FR
VO3+
8
VO3-
9
VO4+
10
VO4-
11
12
VCCP2
VIN4
13
www
VIN4G
14
1-28
http://www.xiaoyu163.com
VIN1_SW
[H]: OP-AMP_A
[L]: OP-AMP_B
Power system
GND
33k
11k
x
ao
y
.
i
http://www.xiaoyu163.com
8
[H]
[L]
33k
Signal system
11k
power supply
-
+
All outputs ON/OFF
H : ON
MUTE
L : OFF
Q Q
3
6 7
1 3
Power system GND
Signal system
power supply
3.3VREG
(External:PTP Tr)
33k
-
+
33k
-
+
u163
.
2 9
9 4
2 8
28
VIN1
27
VIN1-B
-
+
26
VIN1+B
25
S-GND
24
VIN1-SW
23
MUTE
22
VREFIN
1 5
0 5
8
2 9
9 4
FR
FR
21
VCC-S
20
REG-OUT
19
REG-IN
18
VIN2G
11k
17
VIN2
16
VIN3G
11k
m
15
VIN3
co
9 9
2 8
9 9
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