ST TDA7269A User Manual
14W+14W STEREO AMPLIFIER WITH MUTE & ST-BY
■ WIDE SUPPLY VOLTAGE RA NGE UP TO
+20V
■ SPLIT SUPPLY
■ HHIGH OUTPUT POWER 14+14W
@THD = 10%, R
■ NO POP AT TURN-ON/OFF
■ MUTE (POP FREE)
■ STAND-BY FEATURE (LOW I
■ SHORT CIRCUIT PROTECTION TO GND
■ THERMAL OVERLOAD PROTECTION
DESCRIPTION
The TDA7269A is class AB Dual Audio Power amplifier assembled in the Multiwatt package, specially de-
= 8Ω, VS = ±16V
L
q
)
TDA7269A
Multiwatt11
ORDERING NUMBER: TDA7269A
signed for high quality sound application as Hi-Fi
music centers and stereo TV sets.
Figure 1. Typical Application Circuit
+5V
15K 1µF
µP
1µF
1µF
MUTE/
ST-BY
IN (L)
18K15K
GND
IN (R)
D94AU085
+V
S
1000µF
5
7
9
11
+
-
-
+
1
1000µF
3
6
-V
S
OUT (L)
4
18K
IN- (L)
8
10 IN- (R)
OUT (R)
2
560Ω
18K
4.7Ω
100nF
4.7Ω
100nF
560Ω
RL (L)
RL (R)
June 2003
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TDA7269A
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
I
O
P
tot
T
op
T
stg
PIN CONNECTION
DC Supply Voltage ±22 V
S
Output Power Current (internally limited) 3 A
Total Power Dissipation (Tamb = 70°C) 40 W
Operating Temperature 0 to 70 °C
, TjStorage and Junction Temperature -40 to 150 °C
(Top view)
11
10
9
8
7
6
5
4
3
2
1
TAB CONNECTED TO PIN 6
D95AU316
IN+(1)
IN-(1)
GND
IN-(2)
IN+(2)
-V
S
MUTE
OUTPUT(2)
+V
S
OUTPUT(1)
-V
S
THERMAL DATA
Symbol Parameter Value Unit
R
th j-case
Thermal Resistance Junction-case Max. 2.8 °C/W
Figure 2. Sin gl e Su pply Applicati on
+V
S
C5
OUT (L)
IN- (L)
IN- (R)
OUT (R)
1000µF
R4
30K
R5
1K
R6
30K
R7
1K
3
4
8
2
10
1
6
GND
C6
0.1µF
C9 470µF
R8
4.7Ω
C7
0.1µF
C10 470µF
R9
4.7Ω
C8
0.1µF
D96AU444A
OUT
(L)
OUT
(R)
10KC11µF
0
MUTE
R1
PLAY
5V
C2
100µF
Q1
BSX33
R2
15K
R3
15K
C3 1µF
C4 1µF
MUTE
IN (L)
IN (R)
D1 5.1V
5
7
9
11
+
-
+
-
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TDA7269A
ELECTRICAL CHARACTERISTCS
f = 1KHz; T
= 25°C, unless otherwise specified)
amb
(Refer to the test circuit VS = ±16V; RL = 8Ω; RS = 50
Ω;
GV = 30dB,
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
V
P
Supply Voltage Range RL = 8Ω ±5 ±20 V
S
R
= 4Ω ±5 ±15 V
L
I
Total Quiescent Current 60 100 mA
q
Input Offset Voltage -25 25 mV
OS
I
Non Inverting Input Bias Current 500 nA
b
Output Power THD = 10%;
O
= 8Ω;
R
L
V
= ±12.5V; RL = 4Ω;
S
12
8
10
14
THD = 1%;
THD Total Harmonic Distortion R
= 8Ω;
R
L
VS = ±12.5V; RL = 4Ω;
= 8Ω; PO = 1W; f = 1KHz; 0.03 %
L
R
= 8Ω; PO = 0.1 to 7W;
L
9
6
11
7.5
0.7 %
f = 100Hz to 15KHz;
RL = 4Ω; PO = 1W; f = 1KHz; 0.02 %
R
= 4Ω; VS = ±10V;
L
1%
PO = 0.1 to 5W;
f = 100Hz to 15KHz;
W
W
W
W
C
T
Cross Ta lk f = 1KHz;
f = 10KHz; 50
70
60
SR Slew Rate 6.5 10 V/µs
G
e
SVR Supply Voltage Rejection
Open Loop Voltage Gain 80 dB
OL
Total Output Noise A Curve
N
f = 20Hz to 22KHz
Input Resistance 15 20 KΩ
R
i
f = 100Hz; V
= 0.5V 60 dB
R
3
48
(each channel)
Thermal Shut-down Junction
T
j
145 °C
Temperature
MUTE FUNCTION [ref +V
VT
A
MUTE
Mute /Play threshold -7 -6 -5 V
MUTE
Mute Attenuation 60 70 dB
STAND-BY FUNCTIONS [ref: +V
VT
A
ST-BY
I
qST-BY
(*) In mute c ondition the current drawn fr om Pin 5 must be ≤650µA
Stand-by Mute threshold -3.5 -2.5 -1.5 V
ST-BY
Stand-by Attenuation 110 dB
Quiescent Current @ Stand-by 3 6 mA
S
] (*)
] (only for Split Supply)
S
dB
dB
µV
µV
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