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TDA7496S
5W+5W AMPLIFIER
5+5W OUTPUT POWER
R
L
= 8
@THD = 10% V
CC
= 22V
ST-BY AND MUTE FUNCTIONS
LOW TURN-ON TURN-OFF POP NOISE
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
MULTIWATT 15 PACKAGE
DESCRIPTION
The TDA7496 is a stereo 5+5W class AB power
amplifier assembled in the @ Multiwatt 15 pack-
age, specially designed for high quality sound, TV
applications.
Features of the TDA7496 include Stand-by and
mute functions.
Jenuary 2000
OP AMP
+
-
MUTE/STBY
PROTECTIONS
1
470nF
INR
30K
OP AMP
+
-
30K
1000
F
1000
F
1
F
10K
5
470nF
INL
8
S_GND
14
9
10
12
OUTR
STBY
MUTE
OUTL
11
PW_GND
470
F
SVR
7
D99AU1015
V
S
PW_GND
15
13
S1 ST-BY
+5V
S2 MUTE
+5V
S_GND
60K
BLOCK AND APPLICATION DIAGRAM
Multiwatt15
ORDERING NUMBER: TDA7496
MULTIPOWER BI50II TECHNOLOGY
1/10
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
S
DC Supply Voltage
35
V
V
IN
Maximum Input Voltage
8
Vpp
P
tot
Total Power Dissipation (Tamb = 80C)
15
W
T
amb
Ambient Operating Temperature
0 to 70
C
T
stg
, T
j
Storage and Junction Temperature
-40 to 150
C
THERMAL DATA
Symbol
Parameter
Value
Unit
R
th j-case
Thermal Resistance Junction-case
Typ. = 4 Max. = 4.6
C/W
R
th j-amb
Thermal Resistance Junction-ambient max
35
C/W
1
2
3
4
5
6
7
9
10
11
8
PW_GND
MUTE
STBY
S_GND
SVR
N.C.
INL
N.C.
N.C.
N.C.
INR
13
14
15
12
PW_GND
OUTR
V
S
OUTL
D99AU1016
PIN CONNECTION (Top view)
ELECTRICAL CHARACTERISTICS (Refer to the test circuit V
S
= 22V; R
L
= 8
, R
g
= 50
, T
amb
= 25C).
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
V
S
Supply Voltage Range
10
32
V
I
q
Total Quiescent Current
25
50
mA
DCV
OS
Output DC Offset Referred to
SVR Potenial
No Input Signal
200
mV
V
O
Quiescent Output Voltage
Vs = 22V
11
V
P
O
Output Power
THD = 10%; R
L
= 8
; Vs = 22V
5
5.5
W
THD = 1%; R
L
= 8
; Vs = 22V
4
W
THD = 10%; R
L
= 4
; V
CC
= 12V
2.1
W
THD = 1%; R
L
= 4
; V
CC
= 12V
1.0
W
THD
Total Harmonic Distortion
G
V
= 30dB; P
O
= 1W; f = 1KHz;
0.4
%
I
peak
Output Peak Current
(internally limited)
1
1.3
A
V
in
Input Signal
2.8
Vrms
G
V
Closed Loop Gain
28.5
30
31.5
dB
TDA7496S
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ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
BW
0.6
MHz
e
N
Total Output Noise
f = 20Hz to 22KHz
Play
60
150
V
f = 20Hz to 22KHz
Mute
60
150
V
SR
Slew Rate
5
8
V/
s
R
i
Input Resistance
22.5
30
K
SVR
Supply Voltage Rejection
f = 1kHz;
C
SVR
= 470
F; V
RIP
= 1V
rms
35
39
dB
T
M
Thermal Muting
150
C
T
s
Thermal Shut-down
160
C
MUTE STAND-BY & INPUT SELECTION FUNCTIONS
V
ST-ON
Stand-by ON threshold
3.5
V
V
ST-OFF
Stand-by OFF threshold
1.5
V
V
M ON
Mute ON Threshold
3.5
V
V
M OFF
Mute OFF Threshold
1.5
V
I
qST-BY
Quiescent Current @ Stand-by
0.6
1
mA
A
MUTE
Mute Attenuation
50
65
dB
I
stbyBIAS
Stand-by bias current
Stand by on V
ST-BY
= 5V
V
MUTE
= 5V
80
A
A
Play or Mute
-20
-5
A
I
muteBIAS
Mute bias current
Mute
1
5
A
Play
0.2
2
A
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
R2
10K
Mute time constant
Larger mute on/off time
Smaller mute on/off time
C1
1000
F
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
F
Ripple rejection
Better SVR
Worse SVR
C6
1000
F
Output DC decoupling Lower low frequency cutoff
Higher low frequency cutoff
C7
1
F
Mute time costant
Larger mute on/off time
Smaller mute on/off time
C8
1000
F
Output DC decoupling Lower low frequency cutoff
Higher low frequency cutoff
C9
100nF
Supply voltage
bypass
Danger of oscillation
TDA7496S
3/10
OP AMP
+
-
MUTE/STBY
PROTECTIONS
1
C2 470nF
INR
30K
OP AMP
+
-
30K
C8 1000
F
C6 1000
F
C7
1
F
R2 10K
5
C3 470nF
INL
8
S_GND
14
9
10
12
OUTR
S1 STBY
S2 MUTE
OUTL
11
C4 470
F
SVR
7
D99AU1017
V
S
PW_GND
15
13
C9
0.1
F
C1
1000
F
+V
S
PW_GND
PW_GND
PW_GND
S_GND
+5V
+5V
Figure 1a: Application Circuit.
Figure 1b: P.C.B. and Component Layout.
TDA7496S
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MUTE STAND-BY TRUTH TABLE
MUTE
ST-BY
OPERATING CONDITION
H
H
STANDBY
L
H
STANDBY
H
L
MUTE
L
L
PLAY
OFF
STBY MUTE
PLAY
STBY
OFF
MUTE
V
S
(V)
5
ST-BY
pin#9 (V)
5
MUTE
pin#10 (V)
INPUT
(mV)
VOUT
(V)
IQ
(mA)
D97AU684
VSVR
pin#7(V)
2.5V
Turn ON/OFF Sequences (for optimizing the POP performances)
A) USING MUTE AND STAND-BY FUNCTIONS
B) USING ONLY THE MUTE FUNCTION
To semplify the application, the stand-by pin can
be connected directly to Ground.
During the ON/OFF transitions is recommend to
respect the following conditions.
- At the turn-on, the transition mute - play must
be made when the SVR pin is higher than
2.5V
- At the turn-off, the TDA7496 must be brought
to mute from the play condition when the SVR
pin is higher than 2.5V.
TDA7496S
5/10
10
12
14
16
18
20
22
24
26
28
30
32
Supply Voltage (V)
16
18
20
22
24
26
28
30
32
Iq (mA)
Vi=0
Quiescent Current vs. Supply Voltage
10
12
14
16
18
20
22
24
26
28
30
32
Supply Voltage (V)
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Vodc (V)
Vi=0
Output DC Voltage vs. Supply Voltage
10
12
14
16
18
20
22
24
26
28
30
32
Supply Voltage (V)
100
120
140
160
180
200
220
240
260
280
300
Vodc-Vsvr (V)
Vi=0
Output DC Offset vs. Supply Voltage
10
12
14
16
18
20
22
24
26
Supply Voltage (V)
0
1
2
3
4
5
6
7
8
9
10
Ouput Power (W)
THD=10 %
THD=1 %
Rl=8 Ohm
F= 1 KHz
Output Power vs. Supply Voltage
10
10.5
11
11.5
12
12.5
13
13.5
14
Supply Voltage (V)
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
2.8
3
3.2
3.4
3.6
Ouput Power (W)
THD=10 %
THD=1 %
Rl=4 Ohm
F= 1 KHz
Output Power vs. Supply Voltage
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
Output Power (W)
0.01
0.1
1
10
Distortion (%)
Rl=8 Ohm
Vs=22V
F=15 KHz
F=1 KHz
Distortion vs. Output Power
TDA7496S
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0.02
0.2
2
20
Frequency (KHz)
20
21
22
23
24
25
26
27
28
29
30
31
32
Closed Loop Gain (dB)
Rl=8 Ohm
Pout=0.5W
Cin=470nF
Cout =1000uF
Csvr=470 uF
Closed Loop Gain vs. Frequency
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Vpin # 9 (V)
0
10
20
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
Stand-by Attenuation (dB)
Rl=8 Ohm
0 dB @ Pout=1W
St-By Attenuation vs. Vpin 9
0
0.4
0.8
1.2
1.6
2
2.4
2.8
3.2
3.6
4
4.4
4.8
5.2
Vpin # 10 (V)
0
10
20
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
Mute Attenuation (dB)
Rl=8 Ohm
0 dB @ Pout=1W
Mute Attenuation vs. Vpin 10
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1
Output Power (W)
0.01
0.1
1
10
Distortion (%)
Vs=12V
Rl=4 Ohm
F=15 KHz
F=1 KHz
Distortion vs. Output Power
PINS DESCRIPTION
+
-
+
-
6K
6K
1K
1K
30K
30K
SVR
20K
20K
V
S
V
S
V
S
OUT L
OUT R
100
A
D97AU585A
PIN: SVR
TDA7496S
7/10
500
A
30K
V
S
INn
SVR
D97AU589
6K
PINS: INL, INR
50
A
200
MUTE
D97AU592
10K
V
S
PIN: MUTE
GND
D97AU593
V
S
PINS: PW-GND, S-GND
OUT
D97AU588
V
S
PINS: OUT R, OUT L
10
A
65K
V
S
STBY
D97AU594
200
PIN: STBY
TDA7496S
8/10
Multiwatt15 V
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
5
0.197
B
2.65
0.104
C
1.6
0.063
D
1
0.039
E
0.49
0.55
0.019
0.022
F
0.66
0.75
0.026
0.030
G
1.02
1.27
1.52
0.040
0.050
0.060
G1
17.53
17.78
18.03
0.690
0.700
0.710
H1
19.6
0.772
H2
20.2
0.795
L
21.9
22.2
22.5
0.862
0.874
0.886
L1
21.7
22.1
22.5
0.854
0.870
0.886
L2
17.65
18.1
0.695
0.713
L3
17.25
17.5
17.75
0.679
0.689
0.699
L4
10.3
10.7
10.9
0.406
0.421
0.429
L7
2.65
2.9
0.104
0.114
M
4.25
4.55
4.85
0.167
0.179
0.191
M1
4.63
5.08
5.53
0.182
0.200
0.218
S
1.9
2.6
0.075
0.102
S1
1.9
2.6
0.075
0.102
Dia1
3.65
3.85
0.144
0.152
OUTLINE AND
MECHANICAL DATA
TDA7496S
9/10
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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TDA7496S
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