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PDF TDA7571 Data sheet ( Hoja de datos )
| Número de pieza | TDA7571 | |
| Descripción | STPDACsw - Fully digital high efficiency power audio amplifier | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TDA7571 (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
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TDA7571
STPDACsw - Fully digital high efficiency power audio amplifier
Features
■ Output power 2 x 70W / 1 x 250W @ THD<1%
www.DataSheet4U■.comI2S input (FS = 38 to 48kHz)
■ PWM output (FPWM = FS x 8)
■ MCLK input = 256 x FS
■ Operation on 24bit
■ ±30V supply voltage (Max.)
■ St-by
■ Mute
■ Stereo/bridge operation selection
■ Protections against short circuit across the load
■ Chip thermal protection
■ External temperature sensor possibility
■ Thermal warning pins
■ Adjustable clip detector pin
Description
The TDA7571 i is a fully digital switchmode power
audio amplifier with I2S digital input and PWM
output.
HiQUAD-64
The maximum output current and voltage swing
are depending by the output circuitry (power
supply, external power transistors and sensing
resistors). The device can work as a stereo
single-ended channels or a mono bridge power
amplifier.
Table 1.
Device summary
Order code
TDA7571
Package
HiQUAD-64
Packing
Tray
September 2007
Rev 1
1/21
www.st.com
21
1 page  
TDA7571
www.DataSheet4U.com
Table 2.
Pin
number
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Pins description (continued)
Name
Function
+Vs
Spl1
Spl2
-Vs+5
N.C.
Gpls
Gpl
N.C.
N.C.
Gnl
Gnls
Snl2
Snl1
-Vs+Vrefl
-Vs
-Vs
Feed L in
CDsel1
CD sel2
CD
dgnd
bridge
L/R
Rfs
THWint
THWext
NTC
f
5Vdig
P/O
+Vs-low
d1
d2
Positive power supply
Sensing 1 PMOS, left channel
Sensing 2 PMOS, left channel
Not connected
Sense gate PMOS, left channel
Gate PMOS, left channel
Not connected
Not connected
Gate NMOS, left channel
Gate NMOS, left channel
Sensing 2 NMOS, left channel
Sensing 1 NMOS, left Channel
Supply drivers NMOS. left channel
Negative power supply
Negative power supply
Feedback network left channel
Clip detector selection 1
Clip detector selection 2
Clip detector output
Digital ground
Stereo / bridge selection pin
0 = Stereo; 1 = Bridge
Bridge Left/Right Selection
1 = Right; 0 = Left
pcm-pwm gain conversion resistor
Internal thermal warning output
External thermal warning output
Sensing resistors network
Digital 5V supply output
PLL/FREE running osc. option
Positive voltage supply low power
Dither 1
Dither 2
Pin description
Voltage limit Voltage limit
(low)
(high)
30V
30V
30V
-Vs+6
+Vs-12V
+Vs-12V
30V
30V
-30V
-30V
-30V
-30V
-30V
-30V
-30V
-5V
0 (ref)
-Vs+12V
-Vs+12V
-Vs+12V
5V
5.5V
5.5V
5.5V
6V
6V
6V
5.5V
5.5V
5.5V
6V
6V
6V
30
6V
6V
5/21
5 Page 
TDA7571
Figure 3. PLL option diagram
www.DataSheet4U.com
Electrical specifications
11/21
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet TDA7571.PDF ] | |
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