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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： | 5/22頁 |
| 文件大小： | 244K |
| 代理商： | LA7458W |
LA7458W
No.A0642-13/22
Continued from preceding page.
Pin
No.
Pin name
DC
voltage
AC
voltage
Function
Equivalent Circuit
44
AF IN
1.575V
45
EVR OUT
1.575V
When VR is
maximum :
-20dBs
Electronic volume control output.
46
MUTE CTL
Muting control.
Open : Muting low
47
CAMERA H
When the camera is used, setting
this pin high stops the speaker and
headphone functions and reduces
power consumption. Note, however,
that the IC will not switch to power
saving mode if a headphone jack is
inserted.
48
SI/SP/LP CTL
Serial/parallel control selection and
SP/LP control.
49
EVR CTL
Electronic volume control input.
Since it is possible that a large
current could flow if power is applied
to an IC connected to this pin when
power is not applied to this IC, a
resistor with a value under 2k
Ω must
be inserted to function as a limiting
resistor.
50
LINE IN/OUT
Standard
input : -7dB
Line input/output shared-function
connection.
Continued on next page.
45
100
Ω
49
5k
Ω
50k
Ω
46
50k
Ω
1k
Ω
15k
Ω
50k
Ω
50k
Ω
50k
Ω
44
100
Ω
4k
Ω
4k
Ω
50k
Ω
47
50k
Ω
5k
Ω
50k
Ω
48
90k
Ω
67.5k
Ω
10k
Ω
1k
Ω
20k
Ω
200k
Ω
50
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