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Front Panel Audio Connector J4
The front panel audio connector J4 allows connecting a chassis front panel audio with analog microphone input and
stereo speaker output.
Pin
Description
1
MIC2-L
2
GND
3
MIC2-R (MIC Power)
4
PRESENCE#
5
LINE2-R (LineOut-R)
6
MIC2-JD
7
SENSE
8
Key Pin
9
Line2-L (LineOut-L)
10
LINE2-JD
Digital Audio Connectors J5/J11/J12
Digital audio inputs and outputs are available on connector J11 (S/PDIF input), J12 (S/PDIF output) and microphone
connection on J5.
Pin
J5 (HDA GPIO / Dig. MIC)
1
HDA_GPIO0 / DMIC-CLK
2
HDA_GPIO1 / DMIC-DATA
3
PWR_3.3V
4
GND
Codec connector J73
Connector J73 allows access to HD Audio interface to connect external HDAudio codec additional to the onboard
Realtek ALC888/ALC886.
Pin
Description
1
HDA_BITCLK
3
GND
5
HDA_SDIN0_R (default n.c.)
7
GND
9
HDA_SDOUT
25
COM Express® Eval Type 10 / Connectors and Features
J11 (S/PDIF in)
SPDIF_II
GND
-
-
Pin
2
4
6
8
10
J12 (S/PDIF out)
SPDIF_OUT
GND
-
-
Description
GND
HDA_SDIN1
HDA_SDIN2
HDA_SYNC
HDA_RST#
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