Kontron COMe Starterkit Eval T2 - Manual (Page 109)

COM Express Interfaces
Figure 41: Audio Amplifier
The example above shows a traditional class AB amplifier. There are many physically smaller and more power efficient class D audio amplifier
options from vendors such as Texas Instruments, NXP and others.
PICMG ® COM Express ® Carrier Board Design Guide Draft Rev. 2.0 / December 6, 2013 109/218
GND_AUD GND_AUD
GND_AUD GND_AUD
VCC_12V
GND_AUD
GND_AUD
VCC_12V
GND_AUD
LINE_OUT_R
LINE_OUT_L
SPDIF_OUT
Do Not Stuff
Do Not Stuff
FB3 0 50R / 3A0 FB3 0 50R / 3A0
FB2 9 50R / 3A0 FB2 9 50R / 3A0
R60
10k R60
10k
R61
0R R61
0R
C89
100n C89
100n
+ C9 3 220u / 16V + C9 3 220u / 16V
C88
470u C88
470u
+ C9 1 220u / 16V + C9 1 220u / 16V
J21
AUDIOJACK
J21
AUDIOJACK
S1
S2
1
2
3
4
5
U11
TPA1517
U11
TPA1517
IN1
2
IN2
19
NC0
3
NC1
6
NC2
15
NC3
18
SGND
4
SVRR
5
OUT1A
7
OUT1E
8
OUT2A
13
OUT2E
14
PGND0
9
PGND1
12
GND/HS0
1
GND/HS1
10
GND/HS2
11
GND/HS3
20
VCC
16
M/SB
17
POWERPAD
21
L4
1u2 / 155 mA
L4
1u2 / 155 mA
C92
1u / 10V
C92
1u / 10V
+ C9 4 220u / 16V + C9 4 220u / 16V
C90
1u / 10V
C90
1u / 10V
R5 9 0R R5 9 0R