Copyright
©
2015
congatec
AG
IA30m10
25/82
5.3.2.2
Digital Microphone/SPDIF
The digital microphone/SPDIF signals of the Realtek ALC888S HDA audio codec are routed to the internal digital microphone/SPDIF connector
X17. This connector offers two power supply pins - 3,3V and 5V. Power Budget of these pins is limited to 500mA.
Internal Digital Microphone/SPDIF (Connector X17) Pinout Description
Pin Signal
Description
1
+3.3V
3.3V supply
2
DMIC_DATA
Serial data from digital MIC
3
GND
Ground
4
SPDIFO2
Secondary S/PDIF output
5
KEY
No pin
6
+5V
5V supply
Connector Type
X17: 2.54mm, 1x6 Pos. Header
5.3.2.3
Front Panel HD Audio
The front panel HD audio (LINE2 and MIC2) signals of the Realtek ALC888S HDA audio codec are routed to connector X16. The pinout
description of the connector is shown below:
Front Panel HD Audio (Connector X27) Pinout Description
Pin Signal
Description
1
MIC2_L
2nd Analog Stereo Microphone Input - Left Channel
2
GND
Ground
3
MIC2_R
2nd Analog Stereo Microphone Input - Right Channel
4
PRESENCE#
Active low signal that indicates that an Intel HD Audio dongle is
connected to the analog header.
5
LINE2_R
2nd Analog Line Input - Right Channel (Headphone)
6
GND_HDA
Audio Ground
7
SENSE_B
Jack Detection Pin 2
8
KEY
No pin
9
LINE2_L
2nd Analog Line Input - Left Channel (Headphone)
10
GND_HDA
Audio Ground
Digital MIC/SPDIF - Connector X17
Pin 1
No Pin
Front Panel Audio - Connector X16
No Pin
Pin 1
Pin 10
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