Datasheet

Product Description
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1.10 Audio Subsystem
The board supports the Intel High Definition audio subsystem based on the Realtek ALC880 audio
codec. The audio subsystem supports the following features:
• Advanced jack sense for two of the back panel audio jacks that enables the audio codec to
recognize the device that is connected to an audio port. These two back panel audio jacks are
capable of retasking according to user’s definition, or can be automatically switched
depending on the recognized device type.
• Line out and Mic in functions for front panel audio jacks
• A signal-to-noise (S/N) ratio of 95 dB
1.10.1 Audio Subsystem Software
Audio software and drivers are available from Intel’s World Wide Web site.
For information about Refer to
Obtaining audio software and drivers Section 1.3, page 15
1.10.2 Audio Connectors
The board contains audio connectors on both the back panel and the component side of the board.
The front panel audio connector (located on the component side) provides mic in and line out
signals for front panel audio connectors.
For information about Refer to
The location of the front panel audio connector Figure 16, page 52
The signal names of the front panel audio connector Table 16, page 54
The back panel audio connectors Section 2.6.1, page 51
1.10.3 8-Channel (7.1) Audio Subsystem
The 8-channel (7.1) audio subsystem includes the following:
• Intel 82801G I/O Controller Hub (ICH7)
• Realtek ALC880 audio codec
• Microphone input that supports a single dynamic, condenser, or electret microphone
The back panel audio connectors are configurable through the audio device drivers. The available
configurable audio ports are shown in Figure 9.