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參數(shù)資料
| 型號(hào)： | 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(shù)： | 10/41頁 |
| 文件大?。?/td> | 5959K |
| 代理商： | AN12941A |
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AN
12941
A
10
SDC
00056
AEB
■
Terminal Equivalent Circuits (continued)
Pin No.
Equivalent Circuits
Description
Corrugation
and Voltage
16
,
41
50 k
V
REF
(1.5 V)
Pin 16
41
Speaker amplifier entry:
It is the voice input pins of the
speaker amplifier. To make offset
voltage in power saving on/off
changing by the Speaker amplifier
amplifier little, it combines capacity.
(It makes pop noise small).
Pin
16
: R-channel SP amplifier entry
Pin
41
: L-channel SP amplifier entry
The entry impedance: About
50
k
DC
1
.
5
V
AC
16
dBV
14
,
43
90
V
REG
(3.0 V)
Pin 14
43
AGC amplifier output:
It is the output pin of the AGC circuit
to hold an output clip in excessive
output of the speaker output.
Pin
14
: The AGC R-channel output
Pin
43
: The AGC L-channel output
The output impedance:
Equal to or less than about
10
DC
1
.
5
V
AC
16
dBV
13
,
44
V
REG
(3.0 V)
V
REG
(3.0 V)
Pin 13
44
Pin 12
45
18 k
12.7 k
9 k
Alarm mix amplifier output pins:
It is output pins of the mix amplifier
to mix an alarm signal and an audio
signal.
Pin
13
: R-channel output
Pin
44
: L-channel output
The output impedance:
Equal to or less than about
10
DC
1
.
5
V
AC
25
dBV
12
,
45
Alarm mix amplifier negative
feedback pins:
It is the negative feedback of the mix
amplifier to mix an alarm signal and
an audio signal. It is possible to adjust
in the direction which lowers the
gain of the mix amplifier in putting
resistance among above mentioned
mix amplifier output pins.
Pin
12
: R-channel negative
feedback pin
Pin
45
: L-channel negative
feedback pin
The entry impedance:
The high impedance
DC
1
.
5
V
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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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