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參數資料
| 型號： | AN12941A |
| 廠商： | PANASONIC CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | The AN12941A is an amplifier IC for stereo speakers which can output 1 W by 8 Ohm or 2 W by 4 Ohm |
| 中文描述： | 2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO56 |
| 封裝： | 0.300 INCH, LEAD FREE, PLASTIC, HSOP-56 |
| 文件頁數： | 1/41頁 |
| 文件大小： | 5959K |
| 代理商： | AN12941A |
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ICs for Audio Common Use
Publication date: April
2004
SDC
00056
AEB
1
AN12941A
Audio power IC for notebook PC
■
Overview
The AN
12941
A is an amplifier IC for stereo
speakers which can output
1
W by
8
or
2
W by
4
.
The AGC circuit is built-in to prevent the resonance
or the vibration by the speaker's energy and the
clipping distortion what is called "broken up sound."
of the speakers.
Also, to reduce power consumption, AN
12941
A
has a built-in function which automatically detects the
input signal and can automatically enter power save
mode when there is no signal.
■
Features
Speaker amplifier is
1
W
×
2
-channel:
8
, V
CC
=
5
V or
2
W
×
2
-channel:
4
, V
CC
=
5
V
Built-in AGC circuit
Prevention of the resonance or the vibration by
the speaker's energy and the clipping distortion
of the speaker by AGC at excessive input signal
(with AGC on/off switch).
Built-in automatic power saving function
It detects input signals and switches on/off (with
the on/off switch for the automatic power saving).
Operating supply voltage: V
CC
3
.
0
V to
5
.
5
V/
V
CC
_SP
3
.
0
V to
5
.
5
V
■
Applications
Notebook PC, LCD monitor with speaker
■
Block Diagram
4
AGC
S
AGC
L
R
Automatic power save
S
M
S
W
S
A
A
A
s
I
I
I
I
Mix circuit
Automatic detection
14.00
±
0.10
(6.90)
(5.45)
0.20
±
0.05
0.10 M
(0.25)
(1.00)
0° to 8°
0.50
±
0.10
0
±
0
S
Seating plane
56
29
28
1
(
(
6
±
0
0
±
0
8
±
0
1
(
0.50
0.10
Area of no resin flash
Unit: mm
HSOP
056
-P-
0300
A (Lead-free package)
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相關代理商/技術參數 |
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|---|---|
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| AN12948A | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Audio Power IC for Note PC |
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