SAMA5D3x-EK User Guide
6-13
11180A–ATARM–30-Jan-13
6.2.7
Audio
The Main Board includes a WM8904 CODEC for digital sound input and output. This interface includes
audio jacks for micro input (J13) and headphone line output (J15).
This interface can be used to play and record audio. The WM8904 has left and right channel line inputs,
a microphone input and an on-board microphone, a left and right headphone output. The microphone
input and right/left headphone outputs are easily accessible via two 2.5 mm audio jacks on the J13 and
J15 connectors. The Line In and Line Out connections are accessible via a 5-pin header (J26).
The SAMA5D3 series processor is configured as IIS slave mode to interface with the WM8904 CODEC.
Figure 6-12. Audio Interface
HEADPHONE
LINE IN
TWD0
TWCK0
PCK0
TK
RK
TF
RF
RD
TD
150mA capability
INT_AUDIO
MIC1
MIC
AUDIO_GND
AUDIO_GND
AVDD1V8
AUDIO_GND
AUDIO_GND
AUDIO_GND
AUDIO_GND
AUD_1V8
AVDD1V8
AUD_1V8
3V3
AUDIO_GND
3V3
AUDIO_GND
AUDIO_GND
AUDIO_GND
AUDIO_GND
AUDIO_GND
AUDIO_GND
AUD_1V8
3V3
AUDIO_GND
VDDIOP0
AUDIO_GND
AUDIO_GND
AUDIO_GND
PD30
3,9
PC17
3,9
PC20
3
PC16
3,9
PC18
3,9
PA30
13,3,9
PA31
13,3,9
PC21
3
PC19
3
PD16
3
L4
220ohm at 100MHz
L4
220ohm at 100MHz
1
2
C140
4.7u
C140
4.7u
R84
20R
R84
20R
J15
STEREO_3.5mm
J15
STEREO_3.5mm
1
3
4
2
5
C143
4.7u
C143
4.7u
C42
470p
C42
470p
R233
0R
R233
0R
R232
0R
R232
0R
C43
470p
C43
470p
R85
20R
R85
20R
C35
100n
C35
100n
R87
2K2
R87
2K2
R228
0R
R228
0R
C36
2.2u
C36
2.2u
R231
0R
R231
0R
L26
220ohm at 100MHz
L26
220ohm at 100MHz
1
2
R229
0R
R229
0R
R122
1.5k
R122
1.5k
C138
10u
C138
10u
C145
100n
C145
100n
R230
0R
DNP
R230
0R
DNP
C135
100n
C135
100n
R178
0R
R178
0R
R234
0R
R234
0R
C139
100n
C139
100n
R86
2K2
R86
2K2
L27
220ohm at 100MHz
L27
220ohm at 100MHz
1
2
J26
MD1x5
DNP
J26
MD1x5
DNP
1
2
3
4
5
R227
33R
R227
33R
L7
220ohm at 100MHz
L7
220ohm at 100MHz
1
2
MN7
SPX5205M5-L-1-8
MN7
SPX5205M5-L-1-8
VIN
1
GND
2
EN
3
BYP
4
VOUT
5
R226
0R
R226
0R
J13
STEREO_3.5mm
J13
STEREO_3.5mm
1
3
4
2
5
L6
220ohm at 100MHz
L6
220ohm at 100MHz
1
2
MN10
WM8904
MN10
WM8904
IRQ/GPIO1
1
SCLK
2
SDA
3
DB
V
DD
4
DG
ND
5
DCV
DD
6
CP
V
DD
7
CPCA
8
CP
G
ND
9
CPCB
10
CPVOUTP
11
CPVOUTN
12
HPOUTL
13
HPOUTFB
14
HPOUTR
15
LINEOUTL
16
LINEOUTFB
17
LINEOUTR
18
MI
C
V
D
D
19
MICBIAS
20
VMIDC
21
AG
N
D
22
AVD
D
23
IN2R
24
IN1R/DMICDAT2
25
IN2L
26
IN1L/DMICDAT1
27
MCLK
28
BCLK/GPIO4
29
LRCLK
30
ADCDAT
31
DACDAT
32
PAD
33
C46
2.2u
C46
2.2u
C30
4.7u
C30
4.7u
R119
20R
DNP
R119
20R
DNP
C37
100n
C37
100n
R80
47k
DNP
R80
47k
DNP
GND
OUT
MIC1
MP6027P
GND
OUT
MIC1
MP6027P
1
2
C62
470p
C62
470p
C45
2.2u
C45
2.2u
R126
2K2
R126
2K2
R81
47k
DNP
R81
47k
DNP
R123
1.5k
R123
1.5k
R118
20R
DNP
R118
20R
DNP
C90
100n
DNP
C90
100n
DNP
C28
1u
C28
1u
C61
470p
C61
470p
C137
10u
C137
10u
C76
1u
C76
1u
C141
100n
C141
100n
C44
2.2u
C44
2.2u
C142
100n
C142
100n
C41
2.2u
C41
2.2u
C144
100n
C144
100n
L3
220ohm at 100MHz
L3
220ohm at 100MHz
1
2
C136
4.7u
C136
4.7u
C33
4.7u
C33
4.7u
C29
1u
C29
1u
C89
100n
DNP
C89
100n
DNP
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