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PDF TDA7566 Data sheet ( Hoja de datos )
| Número de pieza | TDA7566 | |
| Descripción | 4x40W multifunction quad power amplifier | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TDA7566 (archivo pdf) en la parte inferior de esta página. Total 28 Páginas | ||
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TDA7566
4x40W multifunction quad power amplifier
with built-in diagnostics features
Features
■ DMOS power output
■ High output power capability 4x25W/4Ω @
14.4V, 1KHZ, 10% THD, 4x40W max. power
■ Max. output power 4x60W/2Ω
■ Full I2C bus driving:
– St-by
– Independent front/rear soft play/mute
– Selectable gain 26dB - 12dB
– I2C bus digital diagnostics
■ Full fault protection
■ DC offset detection
■ Four independent short circuit protection
■ Clipping detector (1%/10%)
■ ESD protection
Description
The TDA7566 is a new BCD technology QUAD
BRIDGE type of car radio amplifier in Flexiwatt25
package specially intended for car radio
applications.
www.DataSheet4U.com
Order codes
Flexiwatt 25
Thanks to the DMOS output stage the TDA7566
has a very low distortion allowing a clear powerful
sound.
This device is equipped with a full diagnostics
array that communicates the status of each
speaker through the I2C bus.
The possibility to control the configuration and
behaviour of the device by means of the I2C bus
makes TDA7566 a very flexible machine.
Part number
TDA7566
Package
Flexiwatt 25
Packing
Tube
December 2006
Rev 3
1/28
www.st.com
1
1 page  
TDA7566
Block diagram and application & test circuit
1 Block diagram and application & test circuit
1.1
Block diagram
Figure 1. Block diagram
CLK DATA
VCC1 VCC2
CD_OUT
REFERENCE
THERMAL
PROTECTION
& DUMP
I2C BUS
MUTE1 MUTE2
CLIP
DETECTOR
IN RF
F
IN RR
R
IN LF
F
IN LR
R
SVR
D00AU1229
AC_GND
12/26dB
12/26dB
12/26dB
12/26dB
RF RR LF LR
OUT RF+
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
OUT RF-
OUT RR+
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
OUT RR-
OUT LF+
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
OUT LF-
OUT LR+
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
TAB
PW_GND
OUT LR-
S_GND
1.2 Application and test circuit
www.DataSheet4U.com
Figure 2. Application and test circuit
C8
0.1μF
C7
3300μF
I2C BUS
DATA
CLK
C1 0.22μF
IN RF
25
22
15
C2 0.22μF
IN RR
14
IN LF
C3 0.22μF
11
C4 0.22μF
IN LR
12
S-GND
13
16
Vcc1 Vcc2
6 20
+
17
18
19
-
+
21
24
23
-
+
9
8
7
-
+
5
2
3
-
TAB
1
10 4
C5 C6
1μF 10μF
47K
V
CD OUT
OUT RF
OUT RR
OUT LF
OUT LR
D00AU1212
5/28
5 Page 
TDA7566
Electrical specifications
Figure 10. Distortion vs. frequency (2Ω)
Figure 11. Crosstalk vs. frequency
THD (%)
10
Vs = 14.4 V
RL = 2 Ohm
Po = 8 W
1
0.1
0.01
10
100 1000
f (Hz)
10000
Figure 12. Supply voltage rejection vs.
frequency
CROSSTALK (dB)
90
80
70
60
Vs = 14.4 V
RL = 4 Ohm
50 Po = 4 W
Rg = 600 Ohm
40
30
20
10
100
1000
f (Hz)
10000
Figure 13. Power Dissipation & Efficiency vs.
Output Power (4Ω, SINE)
SVR (dB)
90
Ptot (W)
90
n (%)
90
80
70
60
50
40
Rg = 600 Ohm
Vripple = 1 Vpk
30
80
Vs = 14.4 V
70 RL = 4x4 Ohm
f= 1 KHz SINE
60
50
40
30
20
10
n 80
70
60
50
Ptot
40
30
20
10
20
10
100 f (Hz) 1000
10000
00
0 2 4 6 8 10 12 14 16 18 20 22 24 26
Po (W)
www.DataSFheigetu4rUe.c1om4. Power Dissipation vs. Average Ouput Figure 15. Power Dissipation vs. Average Ouput
Power (Audio Program Simulation, 4Ω)
Power (Audio Program Simulation, 2Ω)
Ptot (W)
45
40
35
Vs = 14.4 V
RL = 4x4 Ohm
GAUSSIAN NOISE
30
CLIP
START
25
20
15
10
5
0123
Po (W)
4
5
Ptot (W)
90
80
70
Vs = 14.4 V
RL = 4x2 Ohm
60 GAUSSIAN NOISE
50
CLIP
START
40
30
20
10
0
012345678
Po (W)
11/28
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet TDA7566.PDF ] | |
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