VAR-320SBC Reference Guide
Copyright © 2008 Variscite
4.13. Audio
The VAR-320SBC uses the Wolfson WM9705 Audio codec
Audio signals:
Signal
Pin number
Type Description
CODEC_MONO_OUT P1-47 O
Loudspeaker mono output for Ext. Amp
HP_LOUT P2-82
O
Headphones,
Right.
HP_ROUT P2-84
O
Headphones,
Left.
CODEC_LINEOUTL P2-32
O
Codec audio line out L
CODEC_LINEOUTR P2-34
O
Codec audio line out R
CODEC_MIC
P2-131
I
Audio codec mic in
CODEC_BIAS P2-133 O
Audio codec mic bias voltage
AUD_GND P2-135,137,139 O
Audio
low noise output GND for MIC
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