Intel D845EPI Intel Desktop Board D845EPI Technical Product Specification - Page 27

Audio Subsystem - drivers

Page 27 highlights

Product Description 1.10 Audio Subsystem The audio subsystem consists of the following devices: • Intel 82801DB I/O Controller Hub (ICH4) • Realtek ALC202A audio codec The audio subsystem includes these features: • Signal-to-noise ratio ≥ 90 dB • Supports wake events (driver dependent) • Mic in pre-amp that supports dynamic, condenser, and electret microphones The audio subsystem supports the following audio interfaces: • ATAPI-style connector: CD-ROM • Front panel audio connector, including pins for:  Line out  Mic in • Back panel audio connectors:  Line out  Line in  Mic in 1.10.1 Audio Connectors 1.10.1.1 Front Panel Audio Connector A 2 x 5-pin connector provides mic in and line out signals for front panel audio connectors. For information about The location of the connector The signal names of the front panel audio connector Obtaining the Front Panel I/O Connectivity Design Guide Refer to Figure 5, page 46 Table 17, page 47 Section 1.5, page 17 ✏ NOTE The front panel audio connector is alternately used as a jumper block for routing audio signals. Refer to Section 2.9.1 on page 54 for more information. 1.10.1.2 ATAPI CD-ROM Audio Connector A 1 x 4-pin ATAPI-style connector connects an internal ATAPI CD-ROM drive to the audio mixer. For information about The location of the ATAPI CD-ROM connector The signal names of the ATAPI CD-ROM connector Refer to Figure 5, page 46 Table 18, page 47 27

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Product Description
27
1.10 Audio Subsystem
The audio subsystem consists of the following devices:
Intel 82801DB I/O Controller Hub (ICH4)
Realtek ALC202A audio codec
The audio subsystem includes these features:
Signal-to-noise ratio
90 dB
Supports wake events (driver dependent)
Mic in pre-amp that supports dynamic, condenser, and electret microphones
The audio subsystem supports the following audio interfaces:
ATAPI-style connector:
CD-ROM
Front panel audio connector, including pins for:
Line out
Mic in
Back panel audio connectors:
Line out
Line in
Mic in
1.10.1
Audio Connectors
1.10.1.1
Front Panel Audio Connector
A 2
x
5-pin connector provides mic in and line out signals for front panel audio connectors.
For information about
Refer to
The location of the connector
Figure 5, page 46
The signal names of the front panel audio connector
Table 17, page 47
Obtaining the
Front Panel I/O Connectivity Design Guide
Section 1.5, page 17
NOTE
The front panel audio connector is alternately used as a jumper block for routing audio signals.
Refer to Section 2.9.1 on page 54 for more information.
1.10.1.2
ATAPI CD-ROM Audio Connector
A 1
x
4-pin ATAPI-style connector connects an internal ATAPI CD-ROM drive to the audio
mixer.
For information about
Refer to
The location of the ATAPI CD-ROM connector
Figure 5, page 46
The signal names of the ATAPI CD-ROM connector
Table 18, page 47