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PDF TDA7269SA Data sheet ( Hoja de datos )

Número de pieza TDA7269SA
Descripción 10W+10W STEREO AMPLIFIER
Fabricantes ST Microelectronics 
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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

1 page




TDA7269SA pdf
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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TDA7269SA arduino
TDA7269SA
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. Specifications 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.
The ST logo is a registered trademark of STMicroelectronics.
All other names are the property of their respective owners
© 2004 STMicroelectronics - All rights reserved
STMicroelectronics group of companies
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -
Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com
11/11

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