STEVAL-CCA028V1 Datasheet, PDF (2/4 Pages) STMicroelectronics – 10 W + 10 W class-D audio amplifier demonstration boardbased on the TDA7491P

Schematic
1
Schematic
STEVAL-CCA028V1
Figure 1. Circuit schematic
1 _{SUB_GND}
22 INPA
C1 _470nF
C2 _470nF
C3
1nF 23 INNA
C4
1nF 27 SGND
C5
26 VDDS
100nF R1 _100k28 _DIAG
R7
22R
)RU6LQJOH(QGHG
- Input
C6
100nF
19 VDDPW
18 PGND
OUTPA 16
OUTPA ¹⁷
PGNDA ¹⁴
PGNDA ¹⁵
PVCCA 12
PVCCA ¹³
OUTNA 10
OUTNA ¹¹
J1
,1/
1
,1/
2
C8
,15
3
100nF
,15
4
SYNCLK
R3
39K
VDDS
25 SYNCLK
24 ROSC
- 30 GAIN0
31 GAIN1
IC1
TDA7492P
(TDA7491P/LP/HV)
OUTPB ³
OUTPB 2
PVCCB 7
PVCCB 6
)RU6LQJOH(QGHG,QSXW
-
-
35 SVCC
C10
100nF ^{36 VSS}
PGNDB 5
PGNDB 4
C11 470nF
32 INPB
OUTNB 9
3V3
OUT
C12 470nF
C13
1nF 33 _INNB
6 087(
12
3
6 67%<
12
3
,& IN
C14
1nF 21 _MUTE
R4 _33k ⁺
2C.125uF
16V
20
STBY
R2 _N ⁺
C7
2.2uF
5 VCC 16V
OUTNB 8
VREF 34
SVR 29
& 1 ^{L4931CZ33 3}
N
X)
2 GND
& R13
Q) _9.1k
932:(56833/<
7'$3
&/$66'$03/,),(5
L4
R6
22R
C25
100nF
C28
100nF
^&
Q)
C27
330pF
C24
100nF
L3
C30C31 C32C33
10uF 16V+ _{+ + +}
OPTION
C23 +
470uF
25V
L1
R5
22R
C19
100nF
C21
330pF
^&
Q)
C18
100nF
C22
100nF
L2
J3
2 _287/
1 _287/
J2
1 9&&
2 _*1'
J4
1 _2875
2 _2875
+ C17
1uF
16V
+ C16
1uF
16V
LC FILTER COMPONENT
Load
4 ohm
L1,L2,L3,L4 C20,C26
15 uH
470 nF
6 ohm
22 uH
220 nF
8 ohm
33 uH
220 nF
16 ohm
68 uH
220 nF
2/4
Doc ID 022324 Rev 1