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48 CMX158886 cpuModule BDM-610000049 Rev G
Audio (CN11)
A full featured AC97 compliant audio port is available on CN11. It provides a mono microphone input, stereo
line level input, and a stereo output that can be configured as line level or headphone level. The output is
configured in the BIOS setup utility. When used as a headphone output, it will drive 32 Ohm speaker at 50mW.
Table 32 Audio Connector (CN11)
10-Pin DIL Pin Signal Function In/Out
1 MIC_VREF 2.2V Supply to bias
microphones. 5mA max.
out
2MIC_IN Microphone input. 1V RMS or
0.1V RMS.
in
3 GND Signal GND GND
4 LINE_IN_LEFT Line level input for left channel.
1V RMS nominal.
in
5 GND Signal GND GND
6 LINE_IN_RIGHT Line level input for right channel.
1V RMS nominal.
in
7 GND Signal GND GND
8 OUTPUT_LEFT Left channel output. Selectable
as line level (1V RMS) or
headphone.
out
9 GND Signal GND GND
10 OUTPUT_RIGHT Left channel output. Selectable
as line level (1V RMS) or
headphone.
out
97531
GND GND GND GND MIC_VREF
OUTPUT_RIGHT OUTPUT_LEFT LINE_IN_RIGHT LINE_IN_LEFT MIC_IN
108642