Kontron COMe Starterkit Eval T2 User 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