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參數資料
| 型號： | LA6557H |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
| 封裝： | 0.375 INCH, HEAT SINK, SOP-28 |
| 文件頁數： | 4/6頁 |
| 文件大小： | 129K |
| 代理商： | LA6557H |
LA6557H
No.6350-4/6
Pin Function
Pin No.
Pin name
Function
Equivalent circuit
1
VCC2
Channel 3, 4, and 5 power supply (shorted to VCC1 and VCC-S
2
3
VO5
VO5+
Loading output (
)
Loading output (
)
2
3
VO5+ VO5
4
5
6
7
8
9
10
11
VO4+
VO4
VO3+
VO3
VO2+
VO2
VO1+
VO1
Channel 4 output (+)
Channel 4 output (
)
Channel 3 output (+)
Channel 3 output (
)
Channel 2 output (+)
Channel 2 output (
)
Channel 1 output (+)
Channel 1 output (
)
VO
4,5,6,7,
8,9,10,11
(
12
VCC1
Channel 1 and 2 (BTL) power supply (shorted to VCC-S
and VCC2)
13
15
17
24
VIN1
VIN2
VIN3
VIN4
Channel 1 input
Channel 2 input
Channel 3 input
Channel 4 input
14
16
18
23
VIN1G
VIN2G
VIN3G
VIN4G
Channel 1 input (gain adjustment)
Channel 2 input (gain adjustment)
Channel 3 input (gain adjustment)
Channel 4 input (gain adjustment)
14
21
(16,18,23)
VING
13
VIN
(15,17,24)
Vref
19
REG-IN
Regulator input (base of the external pnp transistor)
20
REG-OUT
Regulator output (collector of the external pnp transistor)
21
VREF-IN
Reference voltage input
22
VCC-S
Signal system power supply (shorted to VCC1 and VCC2)
25
MUTE
Output on/off control for channels 1 to 4 (the BTL amplifiers)
1
25
(12)
VCC
MUTE
26
S-GND
100k
100k
26
S-GND
Signal system ground
Continued on next page.
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