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What is TDA7269SA?

This electronic component, produced by the manufacturer "ST Microelectronics", performs the same function as "10W+10W STEREO AMPLIFIER".


TDA7269SA Datasheet PDF - ST Microelectronics

Part Number TDA7269SA
Description 10W+10W STEREO AMPLIFIER
Manufacturers ST Microelectronics 
Logo ST Microelectronics Logo 


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TDA7269SA
10W+10W STEREO AMPLIFIER WITH MUTE & ST-BY
1 FEATURES
WIDE SUPPLY VOLTAGE RANGE UP TO
+20V
SPLIT SUPPLY
10+10W @THD = 10%, RL= 8, VS = ±14V
NO POP AT TURN-ON/OFF
MUTE (POP FREE)
STAND-BY FEATURE (LOW Iq)
SHORT CIRCUIT PROTECTION TO GND
THERMAL OVERLOAD PROTECTION
CLIPWATT 11 PACKAGE
2 DESCRIPTION
The TDA7269SA is class AB power amplifier assem-
bled in the @ Clipwatt 11 package, specially de-
Figure 1. Package
Clipwatt11
Table 1. Order Codes
Part Number
TDA7269SA
Package
Clipwatt11
signed for high quality sound application as Hi-Fi
music centers and stereo TV sets.
The TDA7269SA is pin to pin compatible with
TDA7269, TDA7269A, TDA7269ASA, TDA7265,
TDA7499, TDA7499SA.
Figure 2. Block Diagram
15K 1µF
MUTE/
ST-BY
IN (L)
5
7
1µF
+5V µP
15K 18K
GND 9
1µF
IN (R) 11
D94AU085
+VS
3
1000µF
+
-
-
+
1
1000µF
4 OUT (L)
18K 4.7
8 IN- (L)
100nF
560
10 IN- (R)
560
18K
2 OUT (R)
4.7
6
-VS 100nF
RL (L)
RL (R)
September 2004
Rev. 2
1/11

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TDA7269SA equivalent
Figure 6. Test and Application Circuit (Stereo Configuration)
+VS
R2
R1
SW1
ST-BY DZ
Q1
C3
MUTE/
ST-BY 5
IN (L) 7
C1
R4
SW2
MUTE
R3
GND 9
C2
IN (R) 11
D94AU087B
C4 C5
+VS
3
+ 4 OUT (L)
-
R5 R7
8 IN- (L)
C8
R6
10 IN- (R)
R9
R8
- 2 OUT (R)
+
16
R10
-VS C9
C7 C6
TDA7269SA
RL (L)
RL (R)
4 APPLICATION SUGGESTIONS
4.1 (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
Table 5. .
COMPONENT
SUGGESTION
VALUE
PURPOSE
R1
10K
Mute Circuit
R2
R3
R4
R5, R8
R6, R9
R7, R10
C1, C2
C3
C4, C6
C5, C7
C8, C9
Dz
15K
18K
15K
18K
560
4.7
1µF
1µF
1000µF
0.1µF
0.1µF
5.1V
Mute Circuit
Mute Circuit
Mute Circuit
Closed Loop Gain
Setting (*)
Frequency Stability
Input DC Decoupling
St-By/Mute Time
Constant
Supply Voltage Bypass
Supply Voltage Bypass
Frequency Stability
Mute Circuit
LARGER THAN
SMALLER THAN
RECOMMENDED VALUE RECOMMENDED VALUE
Increase of Dz Biasing
Current
Vpin #5 Shifted Downward Vpin #5 Shifted Upward
Vpin #5 Shifted Upward
Vpin #5 Shifted Downward
Vpin #5 Shifted Upward
Vpin #5 Shifted Downward
Increase of Gain
Decrease of Gain
Danger of Oscillations
Danger of Oscillations
Higher Low Frequency Cutoff
Larger On/Off Time
Smaller On/Off Time
Danger of Oscillations
Danger of Oscillations
(*) Closed loop gain has to be 25dB
5/11


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Part NumberDescriptionMFRS
TDA7269SAThe function is 10W+10W STEREO AMPLIFIER. ST MicroelectronicsST Microelectronics

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