TDA7495S(2000) データシートの表示（PDF） - STMicroelectronics
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TDA7495S Datasheet PDF : 11 Pages
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TDA7495S
APPLICATION SUGGESTIONS
The recommended values of the external components are those shown on the application circuit of fig-
ure 1a. Different values can be used, the following table can help the designer.
COMPONENT
R2
C1
C2
C3
C4
C6
C7
C8
C9
SUGGESTION
VALUE
10K
1000µF
470nF
470nF
470µF
1000µF
1µF
1000µF
100nF
PURPOSE
LARGER THAN
SUGGESTION
Mute time constant Larger mute on/off time
Supply voltage
bypass
Input DC decoupling Lower low frequency cutoff
Input DC decoupling Lower low frequency cutoff
Ripple rejection
Better SVR
Output DC decoupling Lower low frequency cutoff
Mute time costant Larger mute on/off time
Output DC decoupling Lower low frequency cutoff
Supply voltage
bypass
SMALLER THAN
SUGGESTION
Smaller mute on/off time
Danger of oscillation
Higher low frequency cutoff
Higher low frequency cutoff
Worse SVR
Higher low frequency cutoff
Smaller mute on/off time
Higher low frequency cutoff
Danger of oscillation
TYPICAL CHARACTERISTICS:
Refer to the application circuit of fig.1A Tamb = 25°C; VS = 20V; RL = 8Ω; F = 1KHz; RS = 50Ω; unless
otherwise specified.
Figure 2: Output Power vs Supply Voltage
POUT
(W)
16
14
12
10
8
6
4
2
0
11
D97AU559
RL=8Ω
d=10%
d=1%
15 19 23 27 31 VS(V)
Figure 3: Distortion vs Output Power
d
D97AU560
(%)
VS=28V
RL=8Ω
1
f=15KHz
f=1KHz
0.1
0.01
0
2
4
6
8 POUT(W)
5/11
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