IBM BDM-610000049 user manual Audio CN11, Audio Connector CN11

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		out
			microphones. 5mA max.
2		MIC_IN	Microphone input. 1V RMS or		in
			0.1V RMS.
3		GND	Signal GND		GND
4		LINE_IN_LEFT	Line level input for left channel.		in
			1V RMS nominal.
5		GND	Signal GND		GND
6		LINE_IN_RIGHT	Line level input for right channel.		in
			1V RMS nominal.
7		GND	Signal GND		GND
8		OUTPUT_LEFT	Left channel output. Selectable		out
			as line level (1V RMS) or
			headphone.
9		GND	Signal GND		GND
10		OUTPUT_RIGHT	Left channel output. Selectable		out
			as line level (1V RMS) or
			headphone.
9		7	5	3	1
GND		GND	GND	GND	MIC_VREF
OUTPUT_RIGHT		OUTPUT_LEFT	LINE_IN_RIGHT	LINE_IN_LEFT	MIC_IN
10		8	6	4	2

48 CMX158886 cpuModule BDM-610000049 Rev G