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TDA7499SA
September 2003
This is preliminary information on a new product now in development. Details are subject to change without notice.
s
WIDE SUPPLY VOLTAGE RANGE UP TO
+18V
s
6+6W @THD = 10%, R
L
= 8
, V
S
=
10V
s
NO POP AT TURN-ON/OFF
s
MUTE (POP FREE)
s
STANDARD BY FEATURE (LOW I
q
)
s
SHORT CIRCUIT PROTECTION TO GND
s
THERMAL OVERLOAD PROTECTION
s
CLIPWATT 11 PACKAGE
DESCRIPTION
The TDA7499SA is class AB power amplifier assem-
bled in the @ Clipwatt 11 package, specially de-
signed for high quality sound application as Hi-Fi
music centers and stereo TV sets.
The TDA7499SA is pin to pin compatible with
TDA7269, TDA7269A, TDA7269SA, TDA7269ASA,
TDA7265, TDA7499.
Clipwatt11
ORDERING NUMBER: TDA7499SA
PRODUCT PREVIEW
6W+6W STEREO AMPLIFIER WITH MUTE & ST-BY
BLOCK DIAGRAM
+5V
18K
15K
IN (L)
1
F
15K
1
F
MUTE/
ST-BY
GND
IN (R)
1
F
4.7
4.7
100nF
100nF
OUT (L)
OUT (R)
1000
F
1000
F
+V
S
3
5
7
9
6
11
2
4
+
+
-
-
D94AU085
RL (L)
RL (R)
-V
S
P
560
18K
IN- (L)
8
10
IN- (R)
1
560
18K
TDA7499SA
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ABSOLUTE MAXIMUM RATINGS
PIN CONNECTION (Top view)
THERMAL DATA
Figure 1. Single Supply Application
Symbol
Parameter
Value
Unit
V
S
DC Supply Voltage
20
V
I
O
Output Power Current (internally limited)
2.5
A
P
tot
Total Power Dissipation (Tamb = 70C)
20
W
T
amb
Ambient Operating Temperature (1)
0 to 70
C
T
stg
, T
j
Storage and Junction Temperature
-40 to 150
C
Symbol
Parameter
Value
Unit
R
th j-case
Thermal Resistance Junction-case
max = 3.9
C/W
R
th j-amb
Thermal Resistance Junction-ambient
max = 48
C/W
1
2
3
4
5
6
7
9
10
11
8
IN+(1)
IN-(1)
GND
IN-(2)
IN+(2)
-V
S
MUTE
OUTPUT(2)
+V
S
OUTPUT(1)
-V
S
D03AU1506
PLAY
5V
R2
15K
IN (L)
C3 1
F
R1
10K
C1
1
F
MUTE
IN (R)
C4 1
F
R8
4.7
R7
1K
C7
0.1
F
OUT (L)
OUT (R)
C5
1000
F
+V
S
3
5
7
9
6
11
2
4
+
+
-
-
D96AU444A
OUT
(L)
OUT
(R)
GND
R4
30K
IN- (L)
8
10
IN- (R)
1
R5
1K
R6
30K
R9
4.7
C9 470
F
C10 470
F
C8
0.1
F
R3
15K
0
MUTE
Q1
BSX33
C6
0.1
F
D1 5.1V
C2
100
F
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TDA7499SA
ELECTRICAL CHARACTERISTCS (Refer to the test circuit V
S
= 10V; R
s
= 50
; G
V
= 30dB, f = 1KHz;
T
amb
= 25C, unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
V
S
Supply Voltage Range
R
L
= 8
5
18
V
R
L
= 4
;
5
12
V
I
q
Total Quiescent Current
50
90
mA
V
OS
Input Offset Voltage
-25
25
mV
I
b
Output Bias Current
500
nA
P
O
Output Power
THD = 10%;
R
L
= 8
;
V
S
= 8.5V; R
L
= 4
;
6
6
W
W
THD = 1%;
R
L
= 8
;
V
S
= 8.5V; R
L
= 4
;
5
5
W
W
THD
Total Harmonic Distortion
R
L
= 8
; P
O
= 1W; f = 1KHz;
0.03
%
R
L
= 8
; V
S
= 10V;
P
O
= 0.1 to 3W;
f = 100Hz to 15KHz;
0.2
0.5
%
R
L
= 4
; P
O
= 1W; f = 1KHz;
0.02
%
R
L
= 4
; V
S
= 8.5V;
P
O
= 0.1 to 2W;
f = 100Hz to 15KHz;
0.2
1
%
C
T
Cross Talk
f = 1KHz;
f = 10KHz;
50
70
60
dB
dB
SR
Slew Rate
6.5
10
V/
s
G
OL
Open Loop Voltage Gain
80
dB
e
N
Total Output Noise
A Curve
f = 20Hz to 22KHz
3
4
8
V
V
R
i
Input Resistance
15
20
K
SVR
Supply Voltage Rejection
(each channel)
f = 100Hz; V
R
= 0.5V
60
dB
T
j
Thermal Shut-down Junction
Temperature
145
C
MUTE & INPUT SELECTION FUNCTIONS
V
MUTE
Mute /Play threshold
-7
-6
-5
V
A
MUTE
Mute Attenuation
60
70
dB
STAND-BY FUNCTIONS [ref: +V
S
] (only for Split Supply)
V
ST-BY
Stand-by Mute threshold
-3.5
-2.5
-0.5
V
A
ST-BY
Stand-by Attenuation
110
dB
I
qST-BY
Quiescent Current @ Stand-by
3
6
mA
TDA7499SA
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MUTE STAND-BY FUNCTION
The pin 5 (MUTE/STAND-BY) controls the amplifier status by two different thresholds, referred to +V
S
.
When V
pin5
higher than = +V
S
-2.5V the amplifier is in Stand-by mode and the final stage generators
are off.
When V
pin5
between = +V
S
-2.5V and V
S
-6V the final stage generators are switched on and the am-
plifier is in mute mode.
When V
pin5
lower than = +V
S
-6V the amplifier is play mode.
Figure 2.
t
OFF
STDBY
MUTE
MUTE
MUTE
MUTE
PLAY
STDBY
PLAY
OFF
STDBY
20
+V
S
(V)
-20
-V
S
V
IN
(mV)
Vpin5
(V)
V
S
V
S
-2.5
V
S-
6
V
S
-10
I
q
(mA)
0
VOUT
(V)
D94AU086
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TDA7499SA
Figure 3. Test and Application Circuit (Stereo Configuration)
APPLICATION SUGGESTIONS (Demo Board Schematic)
The recommended values of the external components are those shown the demoboard schematic different val-
ues can be used, the following table can help the designer.
(*) Closed loop gain has to be
25dB
COMPONENT
SUGGESTION
VALUE
PURPOSE
LARGER THAN
RECOMMENDED VALUE
SMALLER THAN
RECOMMENDED VALUE
R1
10K
Mute Circuit
Increase of Dz Biasing
Current
R2
15K
Mute Circuit
V
pin
#5 Shifted Downward
V
pin
#5 Shifted Upward
R3
18K
Mute Circuit
V
pin
#5 Shifted Upward
V
pin
#5 Shifted Downward
R4
15K
Mute Circuit
V
pin
#5 Shifted Upward
V
pin
#5 Shifted Downward
R5, R8
18K
Closed Loop Gain
Setting (*)
Increase of Gain
R6, R9
560K
Decrease of Gain
R7, R10
4.7K
Frequency Stability
Danger of Oscillations
Danger of Oscillations
C1, C2
1
F
Input DC Decoupling
Higher low frequency cutoff
C3
1
F
St-By/Mute Time
Constant
Larger On/Off Time
Smaller On/Off Time
C4, C6
1000
F
Supply Voltage Bypass
Danger of Oscillations
C5, C7
0.1
F
Supply Voltage Bypass
Danger of Oscillations
C8, C9
0.1
F
Frequency Stability
Dz
5.1V
Mute Circuit
R3
IN (L)
C1
R2
C3
MUTE/
ST-BY
GND
IN (R)
C2
R7
R10
C8
C9
OUT (L)
OUT (R)
C6
C4
+V
S
3
5
7
9
6
11
2
4
+
+
-
-
D94AU087B
RL (L)
RL (R)
+V
S
-V
S
R9
R5
IN- (L)
8
10
IN- (R)
1
SW1
R1
DZ
R4
SW2
C7
R8
R6
C5
Q1
ST-BY
MUTE
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