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参数资料
| 型号： | LA4581MB |
| 厂商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.032 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| 封装： | MFP-24 |
| 文件页数： | 5/10页 |
| 文件大小： | 241K |
| 代理商： | LA4581MB |
Sample Application Circuit
Pin and external part functions (when the voltage is VCC = 3.0 V)
Pin No.
Pin Function
1
PRE GND
2
PRE IN1R 1.8 V
v Turns ON when pin 17 is grounded.
v A bias resistor (2.2 k
) must be connected between pin 2 and pin 24 (Vref) when no head is in use.
3
PRE IN1F 1.8 V
v Turns ON when pin 17 is floating.
v A bias resistor (2.2 k
) must be connected between pin 3 and pin 24 (Vref) when no head is in use.
4
PRE NF1 1.8 V
5
PRE OUT1 1.8 V
v Like pin 6, 10 k
load drivable.
6
SW OUT1 1.8V
v Provides PRE AMP1 output when pin 8 is floating (PRE MUTE OFF)(equivalent to pin 5).
v Disconnects from PRE AMP1 and sets RIN ^ 500 k when pin 8 is at VCC (PRE MUTE ON).
7
POWER IN1 1.8V
v Input resistance RIN 7 30 k
Continued on next page.
Allowable
power
dissipation,
Pd
max
–
m
W
Ambient temperature, Ta – °C
Preamplifier input is applied to pins 2,23/
pins 3,22 when SW ON/OFF, respectively.
POWER MUTE ON when
connected to GND.
Note) Pre closed loop gain VG = 40 dB/1 kHz NAB
PRE MUTE ON when
connected to VCC
Unit (resistance:
, capacitance: F)
1.8 to 3.6 V
LA4581MB
No.3535-4/10
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相关代理商/技术参数 |
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| LA4582 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Pre Power Amplifier for 3-V Headphone Stereo Systems |
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