參數(shù)資料
型號(hào)： LA4581
廠商： Sanyo Electric Co.,Ltd.
英文描述： Preamplifier Power Amplifier for 3V Headphone Stereos
中文描述： 前置放大器功率放大器為3V耳機(jī)音響
文件頁數(shù)： 5/8頁
文件大?。?/td> 216K
代理商： LA4581
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
相關(guān)PDF資料
PDF描述
LA4581MB Oscillator; Frequency:75MHz; Frequency Tolerance:+/-50ppm; Load Capacitance:15pF; Supply Voltage:3.3V; Crystal Terminals:Surface Mount (SMD, SMT)
LA4582 Pre Power Amplifier for 3-V Headphone Stereo Systems
LA4582CM Oscillator; Supply Voltage:5V; Package/Case:14-DIP; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No; Crystal Terminals:Through Hole; Frequency:3.6864MHz; Frequency Tolerance:100ppm; Load Capacitance:15pF RoHS Compliant: Yes
LA4583 Oscillator; Frequency:22MHz; Frequency Tolerance:+/-25ppm; Load Capacitance:15pF; Supply Voltage:2.84V; Crystal Terminals:Surface Mount (SMD, SMT); Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes RoHS Compliant: Yes
LA4583M SMD, 12.288MHZ, 1MW, 50PPM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LA4581M 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Preamplifier + Power Amplifier for 3V Headphone Stereos(215.50 k)
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
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