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參數資料
| 型號： | LA4581M |
| 英文描述： | Preamplifier + Power Amplifier for 3V Headphone Stereos(215.50 k) |
| 中文描述： | 前置放大器功率放大器為3V耳機音響（215.50十一） |
| 文件頁數： | 5/8頁 |
| 文件大?。?/td> | 215K |
| 代理商： | LA4581M |
IC Usage Notes
1.
The power amplifier outputs and the common amplifier output are connected through resistors of about 60
. The resistors
are for common amplifier oscillation blocking.
2.
The preamplifier muting function isolates the preamplifier outputs from SW OUT. The preamplifier is on even when the
preamplifier muting is on.
If transient noise is noticeable when the power supply is turned off, add the external circuit described below. Transient noise
when the power is turned off can be improved by rapidly applying the power amplifier muting.
3.
4.
Internal equivalent circuit for each SW pin.
.
Pre-mute
.
Power mute
.
F/R SW
However, the standby current I
ST
flows even when the
power switch is off
I
ST
= (V
CC
V
BE
)/600 k
When V
CC
= 3.0 V
I
ST
= (3.0 0.6)/600 k
7
4 μA
Unit (resistance:
, capacitance: F)
MUTE ON condition : V
8IN
^
V
CC
– 0.2 V
Inflow current : I
8
7
60 μA (when V
CC
= 3.0 V)
Unit (resistance:
)
MUTE ON condition : V
16
%
0.3 V
Outflow current : I
16
7
2.5 μA
Unit (resistance:
, capacitance: F)
REV condition : V
17
%
0.2 V
Unit (resistance:
, capacitance: F)
LA4581MB
No.3535-5/8
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LA4581MB | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Preamplifier Power Amplifier for 3V Headphone Stereos |
| LA4582 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Pre Power Amplifier for 3-V Headphone Stereo Systems |
| LA4582CM | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Pre Power Amplifier for 3-V Headphone Stereo Systems |
| LA4583 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Cassette Stereo Recording and Playback System |
| LA4583M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Cassette Stereo Recording and Playback System |
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