Advertisement
BA5983FM-X (IC271) : 4CH DRIVER
1.Block diagram
27
26
28
Vcc
1
2
3
2.Pin function
Symbol
I/O
Pin No.
1
Input for Bias-amplifier
I
BIAS IN
2
Non inverting input for CH1 OP-AMP
I
OPIN1(+)
3
Inverting input for CH1 OP-AMP
OPIN1(-)
I
4
Output for CH1 OP-AMP
O
OPOUT1
5
Non inverting input for CH2 OP-AMP
OPIN2(+)
I
6
Inverting input for CH2 OP-AMP
OPIN2(-)
I
7
Output for CH2 OP-AMP
O
OPOUT2
8
Substrate ground
GND
-
9
Input for CH1/2/3 stand by control
I
STBY1
10
Vcc for CH1/2 power block
-
PowVcc1
11
Inverted output of CH2
VO2(-)
O
12
Non inverted output of CH2
O
VO2(+)
13
Inverted output of CH1
O
VO1(-)
14
Non inverted output of CH1
VO1(+)
O
25
23
22
24
10k
10k
20k
10k
10k
10k
4
5
6
7
Function
21
20
19
Vcc
10k
STAND BY
CH4
20k
10k
STAND BY
CH1/2/3
Vcc
8
9
10
Symbol
I/O
Pin No.
VO4(+)
O
15
VO4(-)
O
16
VO3(+)
O
17
VO3(-)
O
18
PowVcc2
-
19
STBY2
I
20
GND
-
21
OPOUT3
O
22
OPIN3(-)
I
23
OPIN3(+)
I
24
OPOUT4
O
25
OPIN4(-)
I
26
OPIN4(+)
I
27
PreVcc
-
28
XV-S56BK/XV-S57SL
18
17
16
15
10k
10k
10k
10k
10k
10k
Level Shift
Level Shift
Level Shift
Level Shift
10k
10k
10k
10k
10k
10k
10k
12
11
13
14
Function
Non inverted output of CH4
Inverted output of CH4
Non inverted output of CH3
Inverted output of CH3
Vcc for CH3/4 power block
Input for Ch4 stand by control
Substrate ground
Output for CH3 OP-AMP
Inverting input for CH3 OP-AMP
Non inverting input for CH3 OP-AMP
Output for CH4 OP-AMP
Inverting input for CH4 OP-AMP
Non inverting input for CH4 OP-AMP
Vcc for pre block
10k
10k
1-23
Advertisement
