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參數資料
| 型號： | LA74302FN |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | AUDIO AMPLIFIER, QCC28 |
| 封裝： | 5 X 5 MM, VQFN-28 |
| 文件頁數： | 10/12頁 |
| 文件大?。?/td> | 147K |
| 代理商： | LA74302FN |
LA74302FN
No.A1180-7/12
Continued from preceding page.
Input
Output
Serial control setting
Symbol
Pi
n
Conditions
Pin
Conditions
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SPK output system (SPK end: measured with 8
Ω )
VOSP2
11
VIN=-14dBV
f=1kHz
25
27
400 to 30kHz LPF used
Vol.=TYP
0
1
0
VOSP3
11
VIN=-14dBV
f=1kHz
25
27
JIS-A FILTER used
Vol.=MIN
0
SPK output system (SPK end: measured with 8
Ω )
VNOSP
11
No input
25
27
JIS-A FILTER used
Vol.=MAX
0
1
VOSSP
11
f=1kHz
25
27
400 to 30kHz LPF used
Vol.=MAX, Level at
which THD = 10% (from
2nd to 5th harmonic)
0
1
MIC output system
VGMIC
21
Vin=-40dBV
f=1kHz
17
400 to 30kHz LPF used
0
HDMIC
21
Vin=-40dBV
f=1kHz
17
400 to 30kHz LPF used
THD: from 2nd to 5th
harmonic
0
VNOMIC
21
No input
17
JIS-A FILTER used
0
VOMIC
21
f=1kHz
17
400 to 30kHz LPF used
Level at which
THD=1% (from 2nd to
5th harmonic)
0
VMIC
22
No input
22
Measure the output
voltage at 2.2k
Ω load
0
Description of Pin Functions
Pin No.
Pin Description
1
Removal of speaker ripple
2
Speaker input
3
EVR output
4
STANDBY control
5
LINE output
6
D GND
7
C.S. input
8
CLOCK input
9
DATA input
10
VCCD
11
PB input
12
VCCA
13
REC output
14
A GND
15
ALC detection
16
ALC input
17
MIC output
18
MIC Amp attenuator output
19
MIC Amp NFB
20
MIC GND
21
MIC input
22
INT power supply for MIC
23
MIC Removal of ripple for VCC and VREFL
24
SPK GND
25
Speaker positive-phase output
26
VCCSP
27
Speaker negative-phase output
28
SPK GND
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