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TFA9810_3 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 03 — 20 February 2008 23 of 29
NXP Semiconductors TFA9810
Audio amplifier 2 x 12 W

Fig 33. Typical application diagram TFA9810

VDDA1 n.c
IN1P
IN1N
CDELAY
SO/OL
IN2P
IN2N
OUT1P
BOOT1P
BOOT1N
OUT1N
STABI1
STABI2
OUT2P
BOOT2P
BOOT2N
OUT2N
VSSA1 VSSA2 VSSDVSSD VSSDVSSDVSSP1VSSP2
VDDA2 VDDP1 VDDP2
010aaa023
C12
680 nF
C27
470 pF
C13
680 nF
C28
470 pF
GND GND
2
1
J3
OUT1
C9
220 nF
C14
220 nF
R27
10
R28
10
C20
680 nF
C29
470 pF
C23
680 nF
C30
470 pF
GND GND
2
1
J6
OUT2
C19
220 nF
C25
220 nF
R29
10
R30
10
L3
22 µH
L4
22 µH
L5
22 µH
L6
22 µH
C16
1µF
C17
1µFGND
GND
26
27
29
28
31
18
23
22
21
20
OUT1+
OUT1
OUT2+
OUT2
C31
100 nF
C1
220 µF
C3
100 nF
C4
100 nF
C2
220 µF
C5
100 nF
GND
GND
GND
R3
10 L2
BEAD
L1
BEAD
12 V
C8
220 pF
R6
10 k
C6
1 µFR7
10 k
R10
10 k
GND R11
10 k
C11
47 pF
GND
1
2
J4
C21
220 pF
R19
10 k
R17
100 k
C18
1 µF
C26
1 µF
R18
10 k
R22
10 k
GND
R23
10 k
C22
68 pF
OUT2
GND
1
2
J7
C15
330 nF
GND
C24
220 pF
C10
220 pF
ENABLE
DIAG
VDDA2
4 13 9 25 24
5 12 1 16 17 32 30 19
GND
VP J1
GND
1
2
C32
220 µFC33
100 nF
12 V 12 V
SW1
ENABLE
2
3
8
6
7
10
11, TEST
15
14
IN1
J2
TFA9810
R32
10 k
R31
10 k
C7
1 µF
R26
100 k
OUT2+
R5
100 k
OUT1
R14
100 k
OUT1+
R33
10 k
R34
10 k
IN2
J5
GND
Snubber network
(Optional)
R100
22