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PDF TDA7297SA Data sheet ( Hoja de datos )
| Número de pieza | TDA7297SA | |
| Descripción | DUAL BRIDGE AMPLIFIER | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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TDA7297SA
10W+10W DUAL BRIDGE AMPLIFIER
s WIDE SUPPLY VOLTAGE RANGE (6V-18V)
s MINIMUM EXTERNAL COMPONENTS
– NO SWR CAPACITOR
– NO BOOTSTRAP
– NO BOUCHEROT CELLS
– INTERNALLY FIXED GAIN
s STAND-BY & MUTE FUNCTIONS
s SHORT CIRCUIT PROTECTION
s THERMAL OVERLOAD PROTECTION
TECHNOLOGY BI20II
CLIPWATT15
ORDERING NUMBER: TDA7297SA
DESCRIPTION
The TDA7297SA is a dual bridge amplifier specially
designed for TV and Portable Radio applications.
BLOCK AND APPLICATION DIAGRAM
Pin to pin compatible with: TDA7297, TDA7266B,
TDA7266SA, TDA7266M, TDA7266MA, TDA7266,
& TDA7266S.
0.22µF
IN1
ST-BY
4
7
VCC
3 13
470µF
+ 1 OUT1+
-
100nF
S-GND
9
Vref
0.22µF
IN2
12
MUTE
6
- 2 OUT1-
+
+ 15 OUT2+
-
September 2003
PW-GND
8
- 14 OUT2-
+
D94AU175B
1/11
1 page  
Figure 3. Stand-alone low-cost Application
C3 0.22µF
4
R1 IN1
47K
ST-BY
7
R2 C4
47K 10µF
S-GND
9
C5 0.22µF
IN2
Vref
12
MUTE
6
TDA7297SA
VCC
3 13
C1
470µF
C2
100nF
+ 1 OUT1+
-
- 2 OUT1-
+
+ 15 OUT2+
-
PW-GND
8
- 14 OUT2-
+
D95AU260A
Figure 4. Distortion vs Output Power.
TH D (% )
10
Vcc = 12 V
Rl = 8 ohm
1
f = 15KHz
f = 5KHz
0.1
0.010
0.1
f = 1KHz
1
Pout (W)
Figure 5. Distortion vs Frequency
T H D (% )
10
Vcc = 16.5V
Rl = 8 ohm
1
0.1
0.010
10 100
Pout = 100mW
Pout = 5W
1k
frequency (Hz)
10k 20k
5/11
5 Page 
TDA7297SA
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
© 2003 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
www.st.com
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