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4.1
BA5830FP-X (IC681) : Power driver
• Pin Layout & Block diagram
28
27
BIAS
Pre Vcc
1
2
TE
L 13942296513
• Pin function
Pin No.
Symbol
1
OPIN2(-) CH2 Pre OP amplifier invert input
2
OPOUT2 CH2 Pre OP amplifier output
3
OPIN1(-) CH1 Pre OP amplifier invert input
4
OPOUT1 CH1 Pre OP amplifier output
5
REG-B
6
REG(+)
7
PreGND Pre Block and Regulator GND
8
MUTE
9
PowGND Power Block GND
10
PowVcc1 CH1, 2 Power Block Vcc
11
VO1(-)
12
VO1(+)
13
VO2(-)
14
VO2(+)
NOTE:
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When PIN2,4,22,25 is high ("H"), the positive output pin of the driver is high ("H") and the negative output pin is low ("L").
When PIN23 is high ("H"), the positive output pin of CH4 is low ("L") and negative output pin is high ("H").
.
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Description of major ICs
26
25
24
23
2.4V
3
4
5
6
Function
Connect to external Tr Base
Regulator terminal of output feedback
Mute terminal
Driver CH1 negative output
Driver CH1 positive output
Driver CH2 negative output
Driver CH2 positive output
x
ao
y
i
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SECTION 4
8
22
21
20
10k
LD/SLED
L
20k
CONTROL
Pow
H
GND
1.65V
H
20k
L
20k
10k
10k
10k
10k
10k
10k
Pow
MUTE
GND
CONTROL
PreGND
7
8
9
Q Q
3
6 7
1 3
Pin No.
Symbol
15
VO3(+)
16
VO3(-)
17
VO4(+)
18
VO4(-)
19
PowVcc2 CH3, 4 Power Block VCC
20
PowGND Power Block GND
21
22
LDIN
23
OPOUTSL SLED Pre OP amplifier output
24
OPINSL(-) SLED Pre OP amplifier invert input
25
OPOUT3 CH3 Pre OP amplifier output
26
OPIN3(-) CH3 Pre OP amplifier invert input
27
BIAS
28
PreVcc
u163
.
2 9
9 4
2 8
19
18
17
16
CH4
10k
10k
+
-
+
-
+
-
Pow
Vcc2
10k
10k
10k
Level shifter
Level shifter
T.S.D
Level shifter
Level shifter
10k
10k
10k
+
-
+
-
+
-
Pow
10k
10k
Vcc1
CH1
10
11
12
13
T.S.D : thermal shutdown
1 5
0 5
8
2 9
9 4
Unit of resistance : [ ]
Function
Driver CH3 positive output
Driver CH3 negative output
Driver CH4 positive output
Driver CH4 negative output
CNT
Control terminal
Loading input
BIAS input
Pre-Block VCC
m
co
9 9
15
CH3
10k
10k
+
-
10k
10k
+
-
10k
10k
CH2
14
2 8
9 9
(No.49843)1-29
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