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PDF STA7360 Data sheet ( Hoja de datos )
| Número de pieza | STA7360 | |
| Descripción | 20W BRIDGE/STEREO AUDIO AMPLIFIER WITH CLIPPING DETECTOR | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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STA7360
20W BRIDGE/STEREO AUDIO AMPLIFIER
WITH CLIPPING DETECTOR
s VERY FEW EXTERNAL COMPONENTS
s NO BOUCHEROT CELLS
s NO BOOSTRAP CAPACITORS
s HIGH OUTPUT POWER
s NO SWITCH ON/OFF NOISE
s VERY LOW STAND-BY CURRENT
s FIXED GAIN (20dB STEREO)
s PROGRAMMABLE TURN-ON DELAY
s CLIPPING DETECTOR
s ST-BY FUNCTION
Protections:
s OUTPUT AC-DC SHORT CIRCUIT TO
GROUND AND TO SUPPLY VOLTAGE
s VERY INDUCTIVE LOADS
s LOUDSPEAKER PROTECTION
s OVERRATING CHIP TEMPERATURE
s ESD PROTECTION
DESCRIPTION
The STA7360 is a new technology class AB Audio
APPLICATION CIRCUIT
MULTIWATT11V
ORDERING NUMBER: STA7360
Power Amplifier in the Multiwatt® package.Thanks to
the fully complementary PNP/NPN output configura-
tion the high power performance of the STA7360 is
obtained without bootstrap capacitors.
A delayed turn-on mute circuit eliminates audible on/
off noise, and a novel short circuit protection system
prevents spurious intervention with highly inductive
loads.
The device provides a circuit for the detection of clip-
ping in the output stages. The output, an open collec-
tor is able to drive systems with automatic volume
control.
20K
C4
1µF
22µF C3
SVR
0.22µF C2
IN2(+)
0.22µF C1
IN
IN1(+)
220µF
C5
STAND-BY
11
7
5
1
2
3
CLIP DET S-GND
100nF
C6
+VS
9
OUT2
8
OUT1
10
RL
4
6
P-GND
OUT BRIDGE
D00AU1213
September 2003
1/18
1 page  
Figure 3. BRIDGE Test and Appication Circuit
20K
C4
1µF
22µF C3
SVR
0.22µF C2
IN2(+)
0.22µF C1
IN
IN1(+)
220µF
C5
STAND-BY
11
7
5
1
2
3
CLIP DET S-GND
100nF
C6
+VS
9
OUT2
8
OUT1
10
RL
4
6
P-GND
OUT BRIDGE
D00AU1213
Figure 4. Board and Layout (BRIDGE) of the circuit of fig. 3 (1:1 scale)
STA7360
5/18
5 Page 
Figure 23. Block Diagram; Bridge Configuration
VCC
20K
ST-BY
SVR
INPUT 1
1µF
+
-
-
+
OUT1
CLIPPING
DETECTOR
CLIP
DETECT
OUT BRIDGE
OUT2
GND
INPUT 2
PWGND
D00AU1216
Figure 24. Dual Channel Distortion Detector
IN1
CLIP DET
OUT1
DISTORTION
DETECTOR
IN2 OUT2
D98AU959
STA7360
11/18
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet STA7360.PDF ] | |
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