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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： | 23/41頁 |
| 文件大?。?/td> | 5959K |
| 代理商： | AN12941A |
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AN
12941
A
SDC
00056
AEB
23
■
Application Notes (continued)
6
. Control order at power supply on/off change (continued)
Power supply on (continued)
2
) Control timing
V
CC_
SP
(Pin 28, pin 29)
V
CC
(Pin 1)
*
1
Standby control (Pin 5)
Speaker pawer save control
(Pin 35)
Power supply on
Standby control reset
(Control voltage:
Change low to high)
Speaker pawer save
control reset (Control voltage:
Change low to high)
Time difference:
Equal to or more than 1.0 sec
Standby reset after V
CC_
SP and V
CC
reach normal voltage
Time difference would not cause any
abnormality at V
CC_
SP and V
CC
atart up
Note) *
1
: Time covering from standby control cancellation until a circuit stabilization to normal state.
It depends on the capacitance connected to reference voltage (V
REF
, V
REF
_SP) pin.
It is recommendation value of
4
.
7
μ
F.
Power supply off
When switching power off, it is recommended to take the order of first applying power save control to a speaker
amplifier so that a circuit transient change may not effect on a speaker output.
1
) Control order
1
. Speaker amplifier power save control: Change off to on
2
. Standby control: Change off to on
3
. Power supply (V
CC
_SP, V
CC
): Change on to off
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