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零件编号
产品描述 (功能)
LA74302FN 查看數據表(PDF) - SANYO -> Panasonic
零件编号
产品描述 (功能)
生产厂家
LA74302FN
Audio Interface for DSC
SANYO -> Panasonic
LA74302FN Datasheet PDF : 12 Pages
First
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11
12
Continued from preceding page.
PIN
Pin Name DC Voltage
18 MIC ATT
0.30V
AC Voltage
LA74302FN
Description of Functions
MIC Amp attenuator output pin
Equivalent Circuit Diagram in Pin
VCCA(=3.0V)
19 MIC NFB
1.64V
MIC Amp NFB pin
20 MIC GND
21 MIC IN
0V
1.64V
-70dBV
(Reference input
level)
MIC Amp block GND pin
MIC input pin
22 MIC VCC
2.30V
MIC power pin
23 VREFL
2.30V
MIC VCC and VREFL ripple
removal pin
24 SP GND
28
25 SPK OUT+
0V
1.25V
-10dBV
(EVR MAX at PB
reference input)
Speaker GND pin
Speaker positive-phase output
pin
26 VCCSP
3.0V
Speaker power pin
4.3
100k
Ω
300
Ω
k
Ω
18
950
Ω
19
VCCA(=3.0V)
500
Ω
21
70k
Ω
VREFL
VCCA(=3.0V)
100
Ω
500
Ω
22
20k
Ω
VCCA(=3.0V)
13k
Ω
23
12.4k
Ω
30.7k
Ω
VCCSP(=3.0V)
5.1k
Ω
25
5k
Ω
27
No.A1180-11/12
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