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PDF TDA7495 Data sheet ( Hoja de datos )
| Número de pieza | TDA7495 | |
| Descripción | 11W+11W AMPLIFIER WITH DC VOLUME CONTROL | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TDA7495 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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TDA7495
11W+11W AMPLIFIER WITH DC VOLUME CONTROL
11+11W OUTPUT POWER
RL = 8Ω @THD = 10% VCC = 28V
ST-BY AND MUTE FUNCTIONS
LOW TURN-ON TURN-OFF POP NOISE
LINEAR VOLUME CONTROL DC COUPLED
WITH POWER OP. AMP.
NO BOUCHEROT CELL
NO ST-BY RC INPUT NETWORK
SINGLE SUPPLY RANGING UP TO 35V
SHORT CIRCUIT PROTECTION
THERMAL OVERLOAD PROTECTION
INTERNALLY FIXED GAIN
SOFT CLIPPING
VARIABLE OUTPUT AFTER VOLUME CON-
TROL CIRCUIT
MULTIWATT 15 PACKAGE
DESCRIPTION
The TDA7495 is a stereo 11+11W class AB
BLOCK AND APPLICATION DIAGRAM
MULTIPOWER BI50II TECHNOLOGY
Multiwatt15
ORDERING NUMBER: TDA7495
power amplifier assembled in the @ Multiwatt 15
package, specially designed for high quality
sound, TV applications.
Features of the TDA7495 include linear volume
control, Stand-by and mute functions.
PW_GND
11
INR
470nF
1
30K
VAROUT_R
2
VS
13
VOLUME
+
-
OP AMP
PW_GND
15
1000µF
14
OUTR
S_GND
8
VOLUME
9 STBY
MUTE/STBY
PROTECTIONS
10K
10 MUTE
60K 1µF
5
INL
+ 12 OUTL
470nF
30K
-
OP AMP
1000µF
470µF
SVR
7
VOLUME
3
4
VAROUT_L
+5V
100nF
300K
D96AU440B
S1 ST-BY
+5V
S_GND
+5V
S2 MUTE
February 1997
1/12
1 page  
TDA7495
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
R1
R2
P1
C1
C2
C3
C4
C5
C6
C7
C8
C9
SUGGESTION
VALUE
300K
10K
50K
1000µF
470nF
470nF
470µF
100nF
1000µF
1µF
1000µF
100nF
PURPOSE
LARGER THAN
SUGGESTION
Volume control circuit
Larger volume regulation
time
Mute time constant Larger mute on/off time
Volume control circuit
Supply voltage
bypass
Input DC decoupling Lower low frequency cutoff
Input DC decoupling Lower low frequency cutoff
Ripple rejection
Better SVR
Volume control time Larger volume regulation
costant
time
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 volume regulation
time
Smaller mute on/off time
Danger of oscillation
Higher low frequency cutoff
Higher low frequency cutoff
Worse SVR
Smaller volume regulation
time
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)
5/12
5 Page 
MULTIWATT15 PACKAGE MECHANICAL DATA
DIM.
A
B
C
D
E
F
G
G1
H1
H2
L
L1
L2
L3
L4
L7
M
M1
S
S1
Dia1
MIN.
0.49
0.66
1.02
17.53
19.6
21.9
21.7
17.65
17.25
10.3
2.65
4.25
4.63
1.9
1.9
3.65
mm
TYP.
1
1.27
17.78
22.2
22.1
17.5
10.7
4.55
5.08
MAX.
5
2.65
1.6
0.55
0.75
1.52
18.03
20.2
22.5
22.5
18.1
17.75
10.9
2.9
4.85
5.53
2.6
2.6
3.85
MIN.
0.019
0.026
0.040
0.690
0.772
0.862
0.854
0.695
0.679
0.406
0.104
0.167
0.182
0.075
0.075
0.144
TDA7495
inch
TYP.
0.039
0.050
0.700
0.874
0.870
0.689
0.421
0.179
0.200
MAX.
0.197
0.104
0.063
0.022
0.030
0.060
0.710
0.795
0.886
0.886
0.713
0.699
0.429
0.114
0.191
0.218
0.102
0.102
0.152
11/12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet TDA7495.PDF ] | |
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