KD-S790
(No.49788)1-31
• Pin function
Pin No.
Symbol
Function
1
VIN1-A
CH1 input AMP_inverted input
2
VIN1+A
CH1 input AMP_non-inverted input
3
VCCP1
CH1 and CH2 power stage power supply
4
VO1+
Output pin(+)for channel 1
5
VO1-
CH1 output pin (-) for channel 1
6
VO2+
Output pin(+)for channel 2
7
VO2-
Output pin(-)for channel 2
8
VO3+
Output pin(+)for channel 3
9
VO3-
Output pin(-)for channel 3
10
VO4+
Output pin(+)for channel 4
11
VO4-
Output pin(-)for channel 4
12
VCCP2
CH3 and CH4 power stage powr supply
13
VIN4
Input pin for channel 4
14
VIN4G
Input pin for channel 4(for gain adjustment)
15
VIN3
Input pin for channel 3
16
VIN3G
Input pin for channel 3(for gain adjustment)
17
VIN2
Input pin for channel 2
18
VIN2G
Input pin for channel 2(for gain adjustment)
19
REGIN
External PNP transistor base connection
20
3.3VREG
3.3VREG output pin external PNP transistor,collector connection
21
VCCS
Signal system GND
22
VREFIN
Reference voltage application pin
23
MUTE
Output ON/OFF pin
24
VIN1_SW
CH1 input OP AMP_changeover pin
25
S_GND
Signal system GND
26
VIN1+B
CH1 AMP_B non-inverted input pin
27
VIN1-B
CH1 AMP_B inverted input pin
28
VIN1
CH1 input pin input OP_AMP output pin
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