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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
1
+3.3V
2
DMIC_DATA
3
GND
4
SPDIFO2
5
KEY
6
+5V
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
1
MIC2_L
2
GND
3
MIC2_R
4
PRESENCE#
5
LINE2_R
6
GND_HDA
7
SENSE_B
8
KEY
9
LINE2_L
10
GND_HDA
Copyright © 2015 congatec AG
Description
3.3V supply
Serial data from digital MIC
Ground
Secondary S/PDIF output
No pin
5V supply
Description
2nd Analog Stereo Microphone Input - Left Channel
Ground
2nd Analog Stereo Microphone Input - Right Channel
Active low signal that indicates that an Intel HD Audio dongle is
connected to the analog header.
2nd Analog Line Input - Right Channel (Headphone)
Audio Ground
Jack Detection Pin 2
No pin
2nd Analog Line Input - Left Channel (Headphone)
Audio Ground
Digital MIC/SPDIF - Connector X17
No Pin
Front Panel Audio - Connector X16
Pin 1
IA30m10
Pin 1
No Pin
Pin 10
25/82
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