Intel DH77DF Technical Product Specification - Page 31

Audio Subsystem Components

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Product Description 1.8.2 Audio Subsystem Components The audio subsystem includes the following components: • Intel H77 Express Chipset • Realtek ALC898 audio codec • Front panel audio header that supports Intel HD audio and AC '97 audio (a 2 x 5- pin header that provides mic in and line out signals for front panel audio connectors) (yellow) • S/PDIF digital audio out header (1 x 4-pin header) (yellow) • S/PDIF digital audio out connector on the back panel • 5-port analog audio input/output stack on the back panel The back panel audio connectors are configurable through the audio device drivers. The available configurable back panel audio connectors are shown in Figure 5. Item A B C D E F Description Rear surround Center channel and LFE (subwoofer) S/PDIF out (optical) Line in Line out/front speakers Mic in/side surround Figure 5. Back Panel Audio Connectors NOTE The back panel audio line out connector is designed to power headphones or amplified speakers only. Poor audio quality occurs if passive (non-amplified) speakers are connected to this output. For information about The locations of the front panel audio header and S/PDIF audio header The signal names of the front panel audio header and S/PDIF audio header The back panel audio connectors Refer to Figure 11, page 47 Section 2.2.3.1, page 50 Section 2.2.1, page 46 31

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Product Description
31
1.8.2
Audio Subsystem Components
The audio subsystem includes the following components:
•
Intel H77 Express Chipset
•
Realtek ALC898 audio codec
•
Front panel audio header that supports Intel HD audio and AC ’97 audio (a 2 x 5-
pin header that provides mic in and line out signals for front panel audio
connectors) (yellow)
•
S/PDIF digital audio out header (1 x 4-pin header) (yellow)
•
S/PDIF digital audio out connector on the back panel
•
5-port analog audio input/output stack on the back panel
The back panel audio connectors are configurable through the audio device drivers.
The available configurable back panel audio connectors are shown in Figure 5.
Item
Description
A
Rear surround
B
Center channel and LFE (subwoofer)
C
S/PDIF out (optical)
D
Line in
E
Line out/front speakers
F
Mic in/side surround
Figure 5.
Back Panel Audio Connectors
NOTE
The back panel audio line out connector is designed to power headphones or amplified
speakers only.
Poor audio quality occurs if passive (non-amplified) speakers are
connected to this output.
For information about
Refer to
The locations of the front panel audio header and S/PDIF audio header
Figure 11, page 47
The signal names of the front panel audio header and S/PDIF audio header
Section 2.2.3.1, page 50
The back panel audio connectors
Section 2.2.1, page 46