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TDA7495 Datasheet(PDF) 5 Page - STMicroelectronics

Part # TDA7495
Description  11W11W AMPLIFIER WITH DC VOLUME CONTROL
PDF  12 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7495 Datasheet(HTML) 5 Page - STMicroelectronics

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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
SUGGESTION
VALUE
PURPOSE
LARGER THAN
SUGGESTION
SMALLER THAN
SUGGESTION
R1
300K
Volume control circuit
Larger volume regulation
time
Smaller volume regulation
time
R2
10K
Mute time constant
Larger mute on/off time
Smaller mute on/off time
P1
50K
Volume control circuit
C1
1000
µF
Supply voltage
bypass
Danger of oscillation
C2
470nF
Input DC decoupling
Lower low frequency cutoff
Higher low frequency cutoff
C3
470nF
Input DC decoupling
Lower low frequency cutoff
Higher low frequency cutoff
C4
470
µF
Ripple rejection
Better SVR
Worse SVR
C5
100nF
Volume control time
costant
Larger volume regulation
time
Smaller volume regulation
time
C6
1000
µF
Output DC decoupling Lower low frequency cutoff
Higher low frequency cutoff
C7
1
µF
Mute time costant
Larger mute on/off time
Smaller mute on/off time
C8
1000
µF
Output DC decoupling Lower low frequency cutoff
Higher low frequency cutoff
C9
100nF
Supply voltage
bypass
Danger of oscillation
11
15
19
23
27
31
VS(V)
0
2
4
6
8
10
12
14
POUT
(W)
16
d=10%
d=1%
RL=8Ω
D97AU559
Figure 2: Output Power vs Supply Voltage
02
4
6
8
POUT(W)
0.01
0.1
1
d
(%)
D97AU560
f=15KHz
VS=28V
RL=8Ω
f=1KHz
Figure 3: Distortion vs Output Power
TYPICAL CHARACTERISTICS:
Refer to the application circuit of fig.1A Tamb = 25°C; VS = 20V; RL = 8
Ω; F = 1KHz; RS = 50Ω; unless
otherwise specified.
TDA7495
5/12



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