Audio; Front Panel Audio; Figure 2-5. Front Panel Audio Header; Table 2-5. Passive Ac'97 Front Panel Audio Header Pin-Out - Intel Thin Mini-ITX System Design Manual

Thin Mini-ITX Internal Electrical Interfaces
2.3

Audio

2.3.1

Front Panel Audio

Front panel audio header: 2x5, 2.54mm pitch, keyed at pin 8

Figure 2-5. Front Panel Audio Header

Table 2-5. Passive AC'97 Front Panel Audio Header Pin-Out

Pin
1 MIC
2 AUD_GND
3 MIC_BIAS
4 PRESENCE#
5 FP_OUT_R
6 AUD_GND
7 RESERVED
8 KEY
9 FP_OUT_L
10 AUD_GND

Table 2-6. HD Audio Front Panel Audio Header Pin-Out

Pin
1 PORT 1L
Thin Mini-ITX Based PC System Design Guide
Signal Name
Front panel microphone input signal (biased when supporting
stereo microphone)
Ground used by analog audio circuits
Microphone power / additional MIC input for stereo microphone
support
Active low signal that signals BIOS that an Intel® HD Audio dongle
is connected to the analog header. PRESENCE# = 0 when an
Intel® HD Audio dongle is connected.
Right channel audio signal to front panel (headphone drive capable)
Ground used by analog audio circuits
Reserved
No pin
Left channel audio signal to front panel (headphone drive capable)
Ground used by analog audio circuits
Signal Name
Analog Port 1 - Left channel (Microphone)
Description
Description
21