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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： | 6/22頁 |
| 文件大小： | 244K |
| 代理商： | LA7458W |
LA7458W
No.A0642-14/22
Continued from preceding page.
Pin
No.
Pin name
DC
voltage
AC
voltage
Function
Equivalent Circuit
51
POWER MUTE
OUT
External muting transistor drive
output.
52
VCC H
4.8V
VCC for blocks that handle
comparatively high-level audio
signals.
53
CS (MIC INT
/MIC EXT/LINE)
Chip select input in serial control
mode. Used for internal/external
microphone and line input switching
in parallel control mode.
54
CLOCK (PB/REC)
Clock input in serial control mode.
Used for playback/record switching
in parallel control mode.
55
DATA
(PAL/NTSC)
Data input in serial control mode.
Used for PAL/NTSC switching in
parallel control mode.
56
VREF PIL
2.3V
Connection for the external
capacitor used for internal circuit
(VREF) ripple rejection.
57
VCC L
3.15V
VCC for blocks that handle high
frequencies (FM).
58
VREF H OUT
1.85V
VREF bias voltage output.
Continued on next page.
51
100
Ω
100
Ω
4.3k
Ω
7.8k
Ω
10k
Ω
90k
Ω
65k
Ω
2k
Ω
53
58
200
Ω
50k
Ω
3pF
50k
Ω
5k
Ω
5k
Ω
54
50k
Ω
3pF
50k
Ω
5k
Ω
5k
Ω
55
58
200
Ω
21.1k
Ω
15k
Ω
9.2k
Ω
39.4k
Ω
VCC1
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