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PMCA User’s Manual Hardware Setup

Onboard Audio Interface

25

2.11

The board provides the onboard AC97 7.1-channel audio interface with Realtek ALC880.

Connector: CN_AUDIO
Type: 10-pin (2 x 5) 1.27mm x 2.54mm-pitch header

Pin

Description

Pin

Description

1 MIC_L

2 Ground

3 MIC_R

4 ACE

Detect

5 Speaker_R

6 MIC

Detect

7 SENSE

8 N/C

9 Speaker_L

10

Speaker

Detect

Connector: CDIN
Type: 4-pin header (pitch = 2.54mm)

Pin

Description

1

CD – Left

2 Ground

3 Ground

4

CD – Right

Connector: CN_SPDIFOUT
Type: 4-pin header (pitch = 2.54mm)

Pin

Description

1 +5V

2 N/C

3 SPDIFO

4 Ground

1

4

1

10

CN_AUDIO

CDIN

1

4

CN_SPDIFOUT