1-29
KD-SX992R/KD-SX921R
3.Pin function
Pin No.
Symbol
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
VIN1-A
VIN1+A
VCCP1
VO1+
VO1-
VO2+
VO2-
VO3+
VO3-
VO4+
VO4-
VCCP2
VIN4
VIN4G
VIN3
VIN3G
VIN2
VIN2G
REG-IN
REG-OUT
VCC-S
VREFIN
MUTE
VIN1_SW
S_GND
VIN1+B
VIN1-B
VIN1
CH1 input AMP_inverted input
CH1 input AMP_non-inverted input
CH1 and CH2 power stage power supply
Output pin(+)for channel 1
CH1 output pin (-) for channel 1
Output pin(+)for channel 2
Output pin(-)for channel 2
Output pin(+)for channel 3
Output pin(-)for channel 3
Output pin(+)for channel 4
Output pin(-)for channel 4
CH3 and CH4 power stage powr supply
Input pin for channel 4
Input pin for channel 4(for gain adjustment)
Input pin for channel 3
Input pin for channel 3(for gain adjustment)
Input pin for channel 2
Input pin for channel 2(for gain adjustment)
External PNP transistor, base connection
3.3VREG output pin, external PNP transistor,collector connection
Signal system GND
Reference voltage application pin
Output ON/OFF pin
CH1 input OP AMP_changeover pin
Signal system GND
CH1 AMP_B non-inverted input pin
CH1 AMP_B inverted input pin
CH1 input pin, input OP_AMP output pin
LA6579H-X(2/2)
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8
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9
2
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4
2
9
8
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6
7
3
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