TDA7570 Datasheet, PDF (3/17 Pages) STMicroelectronics – 250W PWM high efficiency power audio amplifier

TDA7570
Block and simplified application diagram
1
Block and simplified application diagram
Figure 1. Block and simplified application diagram
5V DIG
5V DIG
40
FEED L IN
28
+V_S -V_REF1
9
+V_S
12
+V_S -L_OW
42 13
SPI1
IN L+ 46
IN L- 45
33
I-OFCLK
34
O0-15
29
CDsel1
30
CDsel2
31
CD
NTC 38
36
THWint
37
THWext
OSC
CLIP
TERM.
LEFT
CHANNEL
SIGNAL
PROCESSING
INTERFACE
CHANNEL LEFT
HSD +
PROTECTIONS
CHANNEL LEFT
LSD +
PROTECTIONS
14 SPI2
18 GPL
17 GPLS
22 GNLS
21 GNL
23 SNL2
24 SNL1
6 +V_S-5
15 -V_S+5
8 SPR1
2.5V 54
-2.5V 52
55
MUTE
56
ST-BY
IN R+ 49
IN R- 50
PGND
10
32
REF
53
RIGHT
CHANNEL
SIGNAL
PROCESSING
INTERFACE
7
CHANNEL RIGHT 4
HSD +
PROTECTIONS
5
63
CHANNEL RIGHT 64
LSD +
PROTECTIONS
62
57
60
25 26,27,58,59 61
DGND SGND
-V_S +V_REFL
-V_S +V_REFL
-V_S +V_REFL
-V_S
SNR1
SPR2
GPR
GPRS
GNRS
GNR
SNR2
+25V
OUTPUT
LOWPASS
FILTER
OUT LEFT
-25V
+25V
OUTPUT
LOWPASS
FILTER
OUT RIGHT
-25V
D00AU1198
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