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參數資料
| 型號： | LA7458W |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, SQFP-64 |
| 文件頁數： | 4/22頁 |
| 文件大小： | 244K |
| 代理商： | LA7458W |
LA7458W
No.A0642-12/22
Continued from preceding page.
Pin
No.
Pin name
DC
voltage
AC
voltage
Function
Equivalent Circuit
36
VREF FIL2
2.28V
VREF ripple rejection filter
connection.
37
GND
Ground for the logic circuit and line
amplifier blocks
38
N.C.
39
SP OUT-
2.1V
When VR is
maximum :
-0.4dBs
Speaker output.
This is the BTL amplifier minus side
output.
40
N.C.
41
SP OUT+
2.1V
When VR is
maximum :
-0.4dBs
Speaker output.
This is the BTL amplifier plus side
output.
42
SP/HP AMP IN
2.2V
When VR is
maximum :
-20dBs
Speaker and headphone input.
43
AF OUT
Continued on next page.
47.5k
Ω
10pF
52.5k
Ω
200
Ω
36
SP VCC
39
1.2k
Ω
9.7k
Ω
SP VCC
41
1.2k
Ω
8.2k
Ω
SP VCC
42
10k
Ω
300
Ω
300
Ω
300
Ω
43
100
Ω
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