Product guide

Intel Desktop Board DG41TX Product Guide
48
Front Panel HD Audio Header
The front panel audio header shown in Figure 21, A supports both Intel HD Audio and
AC ’97 Audio.
Table 5 shows the pin assignments and signal names for
HD Audio and Table 6 shows
the pin assignments and signal names for AC ’97 Audio.
Table 5. Front Panel Audio Header 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 6. 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 PRESENCE#
5 FP_OUT_R 6 AUD_GND
7 No connection 8 KEY (no pin)
9 FP_OUT_L 10 AUD_GND
HD Audio Link Header
See Figure 21, B for the location of the HD Audio Link header. Table 7 shows the pin
assignments for the header.
Table 7. HD Audio Link Header Signal Names
Pin Signal Name Pin Signal Name
1 BCLK 2 Ground
3 RST# 4 3.3 Vcc
5 SYNC 6 Ground
7 SDO 8 3.3 Vcc
9 SDI0 10 +12 V
11 SDI1 12 Key
13 No Connection 14 3.3 V STBY
15 No Connection 16 Ground