User manual

ATHENA CPU User Manual V1.40 Page 19
4.14 Audio I/O Connector – J15
1 LEFT Line Out
2 RIGHT Line Out
3 Audio Ground
4 LEFT Line Input
5 RIGHT Line Input
6 Audio Ground
7 Microphone Input
8 Power Reference for Microphone
9 NC (Key)
10 Audio Ground
Table 14: J15 – Audio I/O Connector Pinout
Signal Name Definition
Line Out Line Level output. These outputs are not capable of driving
headphones. They must only be connected to high-impedance
devices such as amplified speakers.
Line Input Line-Level input; referred to as “Line In” in most sound documentation
Microphone Input Microphone-level mono input; phantom power provided via pin 8
The sound chip used is AC97-compatible.
Connector Part Numbers
J15 Connector on CPU board: Standard 2x5, 0.1” Box header