Front panel audio header, Internal mono speaker header – Intel DH55HC User Manual
Page 47
Installing and Replacing Desktop Board Components
47
Front Panel Audio Header
The front panel audio header shown in Figure 23, A supports both Intel High Definition
(HD) Audio and AC ’97 Audio.
Table 4 shows the pin assignments and signal names for HD Audio and Table 5 shows
the pin assignments and signal names for AC ’97 Audio.
Table 4. Front Panel Audio Signal Names for Intel HD Audio
Pin Signal
Name
Pin Signal
Name
1
PORT 1L (Microphone)
2
GND
3
PORT 1R (Microphone)
4
PRESENCE#
5
PORT 2R (Headphone)
6
SENSE1_RETURN
7 SENSE_SEND
8 KEY
(no
pin)
9
PORT 2L (Headphone)
10
SENSE2_RETURN
Table 5. Front Panel Audio Header Signal Names for AC ’97 Audio
Pin Signal
Name
Pin Signal
Name
1
MIC
2
AUD_GND
3 MIC_BIAS
4 AUD_GND
5 FP_OUT_R
6 FP_RETURN_R
7 AUD_5V
8 KEY
(no
pin)
9 FP_OUT_L
10
FP_RETURN_L
Internal Mono Speaker Header
The internal mono speaker header is shown in Figure 23, B. Table 6 shows the pin
assignments and signal names for the internal mono speaker header.
Table 6. Internal Mono Speaker Header
Pin Signal
Name
1
−
2 +