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LA4440 参数 Datasheet PDF下载

LA4440图片预览
型号: LA4440
PDF下载: 下载PDF文件 查看货源
内容描述: 6W双通道,大桥19W (典型值)功率放大器 [6W 2-Channel, Bridge 19W typ Power Amplifier]
分类和应用: 商用集成电路放大器功率放大器
文件页数/大小: 13 页 / 469 K
品牌: SANYO [ SANYO SEMICON DEVICE ]
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LA4440  
(g) In case of applying audio muting in each application circuit, the following circuit is used.  
6VV V  
M
CC  
Recommended V =9V  
M
A =40dB (Rg=600)  
TT  
Flow-in current I is calculated by the following formula.  
O
V
M
– V  
BE  
R
O
I =  
O
In case of increasing the muting attenuation, resistor 5.6kis connected in series with the input, and then the  
attenuation is made to be 55dB. Be careful that connecting an input capacitor causes pop noise to be increased at  
the time of application of AC muting. Increased R , C make it possible to reduce the noise. In case of com-  
O
O
pletely cutting off power IC, pin (5) is grounded, and then DC control is available and the attenuation is made to  
be .  
Stereo  
: 20Ω≤R100Ω  
Bridge No.1 : 20Ω≤R100Ω  
Bridge No. 2 : 0Ω≤R50Ω  
Pin Voltage (unit : V)  
Pin No.  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
AC  
Audio  
Muting  
CH2  
Power  
GND  
CH1  
Power  
GND  
CH1  
NF  
CH1  
NF  
Pre  
GND  
CH2  
IN  
CH2  
NF  
CH2  
BS  
CH2  
OUT  
CH1  
OUT  
CH1  
BS  
Function pin  
DC  
V
CC  
Pin Voltage at  
quiescent mode  
1.4  
0.03  
0
0
13.0  
0.03  
1.4  
0
11.9  
6.8  
13.2  
6.8  
11.9  
0
Proper Cares in Using IC  
· Maximum ratings  
If the IC is used in the vicinity of the maximum ratings, even a slight variation in conditions may cause the maximum  
ratings to be exceeded, thereby leading to breakdown. Allow an ample margin of variation for supply voltage, etc. and  
use the IC in the range where the maximum ratings are not exceeded.  
· Printed circuit board  
When making the board, refer to the sample printed circuit pattern and be careful that no feedback loop is formed  
between input and output.  
· Oscillation preventing capacitor  
Normally, a polyester film capacitor is used for 0.1µF + 4.7. The capacitance value can be reduced to 0.047µF depend-  
ing on the stability of the board.  
· Others  
Connect the radiator fin of the package to GND.  
No.750–6/13  
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