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TDA7498 Datasheet(PDF) 19 Page - STMicroelectronics

Part # TDA7498
Description  100-watt 100-watt dual BTL class-D audio amplifier
PDF  28 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7498 Datasheet(HTML) 19 Page - STMicroelectronics

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4
Applications information
4.1
Applications circuit
Figure 19.
Applications circuit for 6- or 8-
Ω speakers
L+
R+
R-
VCC
GND
L+
L-
R+
R-
TDA7498
MUTE
STBY
3V3 POWER SUPPLY
Single-Ended
*
*
*
*
*
Input
CLASS-D AMPLIFIER
*
*
*
*
Single-Ended
Input
Load = 6 ohm
For
For
FREQUENCY SHIFT
OUTPUT
INPUT
L-
*
LC FILTER COMPONENTS
Load
L1,L2,L3,L4
C20,C26
C18,C22,C24,C28
6 ohm
8 ohm
22 uH
22 uH
470 nF
680 nF
220 nF
220 nF
C5
100nF
R3
39K
L4
22uH
C1
1uF
C2
1uF
C11
1uF
C12
1uF
C8
100nF
C25
100nF
C19
100nF
C27
330pF
R6
22R
C40
220nF
C41
220nF
C21
330pF
R5
22R
C42
220nF
C43
220nF
C14
1nF
32
INPB
36
VSS
9
OUTNB
5
PGNDB
7
PVCCB
3
OUTPB
10
OUTNA
12
PVCCA
14
PGNDA
16
OUTPA
33
INNB
8
OUTNB
4
PGNDB
21 MUTE
6
PVCCB
2
OUTPB
29
SVR
11
OUTNA
1
SUB_GND
22
INPA
23
INNA
27
SGND
26
VDDS
28
DIAG
19 VDDPW
18 PGND
20 STBY
24
ROSC
31 GAIN1
35
SVCC
30
GAIN0
25
SYNCLK
17
OUTPA
15
PGNDA
34
VREF
13
PVCCA
IC1
TDA7498
R1
100k
R7
22R
C6
100nF
R4
120k
R2
33k
R8
6.8k
C26
680nF
C10
100nF
C20
680nF
J6
J5
2
1
3
S1
2
1
3
S2
C29
2.2uF
2
GND
1
OUT
3
IN
IC2
L4931CZ33
1
2
J2
J8
J7
+
C23
2200uF
50V
L3
22uH
L1
22uH
L2
22uH
J4
C30
1uF
C31
1uF
R14
100k
R15
8R
C28
220nF
R16
8R
C24
220nF
R17
8R
C18
220nF
R18
8R
C22
220nF
1
2
3
4
J3
2
4
1
3
J1
R13
47k
C13
1nF
+
C15
2.2uF
16V
+
C7
2.2uF
16V
D1
18V
C9
100nF
C4
1nF
C3
1nF
C16
10uF
10V
C17
10uF
10V
R9
180K
1
2
3
Q1
KTC3875(S)
DIAG
VCC
3V3
3V3
FS
FS
VDDS
VDDS



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