Signal Description - Advantech MI/O-128 Design Manual

1.1 Audio
The HD Audio, which can provide DAC channels to support LOUT and stereo ADCs to
support stereo MIC and LIN, is established on the CPU board. The audio signal MICL,
MICR, LINL, LINR, LOUTL, LOUTR and AGND are the interface for audio application.

1.1.1 Signal Description

SMD
Name
Pin
35 AUDIO LOUTR
37 AUDIO GND
39 AUDIO LOUTL
41 AUDIO GND
43 AUDIO MICR
36 AUDIO LINR
38 AUDIO GND
40 AUDIO LINL
42 AUDIO GND
Table 1.1.1-1 Signal Description for Audio
Pin Type Power Rail
Output 1.2Vrms
Audio GND Audio GND
Output 1.2Vrms
Audio GND Audio GND
Input 1.5Vrms
Input 1.5Vrms
Audio GND Audio GND
Input 1.5Vrms
Audio GND Audio GND
7
Description
LINE-R Output
Audio GND
LINE-L Output
Audio GND
MIC-R Input
LINE-R Input
Audio GND
LINE-L Input
Audio GND