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V
DDP
R2
V
V
DDA
DDP
10 Ω
L1 BEAD
R1
5.6 kΩ
R3
CON1
C1
C2
C3
5.6 kΩ
V
DD
1
2
+25 V
100 nF
47 µF/35 V
470 µF/35 V
DZ1
5V6
R4
5.6 kΩ
GND
C4
3
SS
C7
100 nF
C5
47 µF/35 V
C6
−25 V V
S1
S2
100 µF/10 V
470 µF/35 V
ON/OFF OPERATE/MUTE
V
V
SSP
SSA
L2 BEAD
R5
V
V
V
SSA
DDP
SSP
10 Ω
C8
V
V
47 µF/
63 V
DDA
SSA
C13
C9
100 nF
R6
30 kΩ
SINGLE ENDED
OUTPUT FILTER VALUES
V
V
SSP
C14
C15
C16
100 nF
DDP
C12
FB GND
FB GND
LS1/LS2 L3/L4 C22/C31
2 Ω
4 Ω
6 Ω
8 Ω
10 µH
22 µH
33 µH
47 µH
1 µF
100 nF
100 nF
100 nF
100 nF
C10
220 pF
C11
220 pF
680 nF
470 nF
330 nF
C17
1 nF
R7
10 Ω
R8
C18
10 12
8
7
6
14
17
IN1
IN1P
OUT1P
L3
OUT1
5.6 kΩ
470 nF
C19
220 pF
16
LS1
R10
C20
OUT1M
IN1M
R9
C21
9
BOOT1
22 Ω
15
5.6 kΩ
470 nF
SGND1
C23
1 nF
11
15 nF
C22
C24
100
nF
U1
FB GND
TDA8920BTH
FB
C25
1 nF
SGND2
IN2P
C27
2
5
GND
BOOT2
OUT2
R11
C26
22
21
15 nF
5.6 kΩ
470 nF
OUT2M
OUT2P
L4
C28
220 pF
LS2
IN2
R12
C29
IN2M
4
3
R13
10 Ω
R14
22 Ω
5.6 kΩ
470 nF
C30
1 nF
1
13
19 24 18
23
20
C31
C32
100
nF
C40
220 pF
C41
220 pF
FB
GND
C33
220 pF
C34
100 nF
C35
C37
C38
C39
100 nF
FB GND
FB GND
C36
100 nF
100 nF
100 nF
100 nF
001aab224
V
V
V
V
V
V
V
V
SSP
DDA
SSA
SSA
SSP
DDP
SSP
DDP
Fig 9. TDA8920BTH application schematic.
NXP [ NXP ]
