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參數資料
| 型號： | LA7477W |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | 7 X 7 MM, SQFP-48 |
| 文件頁數： | 12/12頁 |
| 文件大小： | 129K |
| 代理商： | LA7477W |
LA7477W
No.5775-9/12
Pin Functions
Pin No.
Pin Name
DC
voltage
AC voltage
Description
Equivalent circuit
1
EVR CTL IN
1.575V
Controls the EVR.
This pin can be used for external
control by applying a voltage through
an external resistor. This IC can also
be controlled from serial data by
connecting this pin to pin 2 through an
external resistor.
1
1.575V
2
EVR CTL
SERIAL OUT
Control output when EVR is
controlled by serial data
2
3
5
32
34
36
48
LINE IN2 R
MIC IN R
MIC IN L
LINE IN2 L
LINE IN1 L
LINE IN1 R
1.80V
-30dBV
-40dBV
-30dBV
(Reference
inputs)
Right channel line 2 input
Right channel microphone input
Left channel microphone input
Left channel line 2 input
Left channel line 1 input
Right channel line 1 input
5
32
3
36
48
34
50k
Ω
VREF
4
FADE IN
Controls the fade characteristics
4
70k
Ω
50k
Ω
6
33
44
GND R
GND L
GND LINE
Right channel ground
Left channel ground
Line input ground
8
30
EXT EVR OUT R
EXT EVR OUT L
Connect to the right channel external
EVR output.
Connect to the left channel external
EVR output.
8
30
50k
Ω
VREF
7
31
EXT EVR IN R
EXT EVR IN L
1.80V
-40dBV
(Microphone
mode)
-30dBV
(Line mode)
Connect to the right channel external
EVR input.
Connect to the left channel external
EVR input.
7
31
Continued on next page.
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