TDA7498MV Datasheet, PDF (18/27 Pages) STMicroelectronics – 100-watt mono BTL class-D audio amplifier

5
5.1
Applications information
Applications circuit
Figure 18. Applications circuit
J9
1
2
INPUT
C1
1µF
C2
1µF
1 _{SUB_GND}
22 INP
C3
1nF 23 INN
C4
1nF 27 SGND
C5
100nF
For
R7
J7 _{single-ended 22R}
input
C6
100nF
VDDS 26 VDDS
R1 _{28 DIAG}
100k
DIAG
19 VDDPW
18 PGND
Frequency shift
Q1
R9
KTC3875(S) _180K
R13
3
FS
47k
R14
1
2
3V3
100k
25 SYNCLK
C8 _R3
100nF 39K
24 ROSC
VDDS
J5 30 GAIN0
31 GAIN1
J6
35 SVCC
C10
100nF 36 _VSS
IC3
TDA7498MV
3V3
FS
J4
S2 _MUTE
1
2
3
S1 _STBY
1
2
3
OUT
IC2 IN
1 ^L4931CZ33 3
C29
2.2µF
2 GND _C9
100nF
R8
6.8k
D1
18V
VDDS
32 _VDDS2
33 _SGND2
R4
21 _MUTE
+
120k
C15
R2
2.2µF
16V
20
STBY
33k ⁺ C7
2.2µF
16V
VCC
3V3 Power supply
TDA7498MV
CLASS-D AMPLIFIER
OUTP ¹⁶
OUTP ¹⁷
PGND ¹⁴
R6
PGND ¹⁵
22R
C25
PVCC
PVCC
100nF
12
13
OUTN ¹⁰
OUTN ¹¹
C30
1µF
C27
330pF
NC ³
NC 2
NC ⁷
NC ⁶
NC ⁵
NC ⁴
NC 9
NC ⁸
VREF 34
SVR 29
C17
10µF
10V
C16
10µF
10V
L4
*^22µH
*
C28
220nF
* ^C26
* ^680nF
C24
220nF
L3
* ^22µH
C23
2200µF
50V
R15
8R
C40
220nF
C41
220nF
R16
8R
J3
OUT-1
OUT-2
OUTPUT
Load = 6 ohm
2
+
VCC
1
GND
J2
LC filter components
Load
6 ohm
L1,L2
22 µH
C26
680 nF
8 ohm
22 µH
470 nF
C24,C28
220 nF
220 nF