Datasheet

Product Description
43
1.10 Audio Subsystem
The boards provide a Flex 6 audio subsystem based on the Analog Devices AD1985 codec. The
audio subsystem supports the following features:
• Advanced jack sense with Auto Topology Switching that enables the audio codec to recognize
what device is connected to an audio port and alerts the user if the wrong type of device has
been connected
• Split digital/analog architecture for improved S/N (signal-to-noise) ratio: > 94 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 17
1.10.2 Intel
®
Flex 6 Audio Subsystem
The Flex 6 audio subsystem includes the following:
• Intel 82801EB I/O Controller Hub (ICH5)
• Analog Devices AD1985 audio codec
• Microphone input that supports a single dynamic, condenser, or electret microphone
The subsystem has the following connectors:
• ATAPI-style CD-ROM connector
• Front panel audio connector, including pins for:
 Line out
 Mic in
• Back panel audio connectors that are configurable through the audio devices drivers. The
available configurations are shown in Figure 10.
Six-Channel Analog
Shared Jack Option
5.1 Digital
Shared Jack Option
Rear Channel
Left and Right Out
Front Channel
Left and Right Out
Center Channel and
LFE (Subwoofer) Out
Line In
S/PDIF
Mic In
OM15974
Line In
Line Out
Mic In
Two-Channel Analog
Jack Option
Figure 10. Back Panel Audio Connector Options for Flex 6 Audio Subsystem