Chapter 2
XV915
13
Front Audio Interface(F_AUDIO)
The audio interface provides two kinds of audio output choices: the FrontAudio, the
RearAudio. Their priority level is as sequence. When the FrontAudio is available, the
RearAudio will be cut off. An onboard amplifier is provided for the earphone. When
the FrontAudio is absent, Pin3 and Pin4, Pin5 and Pin6 must be short connected.
Note: the mainboard provides one audio cable.
Pin
No.
Symbol
Pin
No.
Symbol
1
MIC
2
GND(MIC)
3
Front LINE Out(R)
4
LINE Next(R)
5
Front LINE Out(L)
6
LINE Next(L)
7
GND(fLO)
8
(Cut away)
F_AUDIO
2
4
6
1
3
5
7
8
After using audio cable, the definition of pins as follow:
W hen the FrontAudio is absent, Pin5 and Pin6, Pin9 and Pin10 must be short
connected.
F_AUDIO
Pin No.
Symbol
Pin No.
Symbol
1
AUD_MIC
2
AUD_GND
3
AUD_MIC_BIAS
4
ADU_VCC
5
AUD_FPOUT_R
6
AUD_RET_R
7
NC
8
(Cut away)
9
AUD_FPOUT_L
10
AUD_RET_L
2
4
6
10
1
3
5
7
9
8
