AC97 and Touch Interface
©
PHYTEC Meßtechnik GmbH 2006 L-668e_1
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The signals from the integrated touch controller are routed to
connector X25 on the Carrier Board.
The WM9712L IC also provides four analog inputs that can be used
for voltage monitoring purposes.
ADC
Function
AUX 0
AKKU_COMP, battery voltage
AUX 1
AKKU_IBAT, battery current draw
AUX 2
AKKU_TEMP, battery temperature
AUX 3
Light sensor
Table 46:
Voltage Supervision with WM9712L
The sound portion of the WM9712L supports microphone (mono),
stereo input und stereo output.
Sound Jack Functions
X28
Microphone input (mono)
X27 Stereo
input
X26 Stereo
output
Table 47:
Sound Jacks
Another functional block of the WM9712L allows for controlling of
loudspeakers. A miniature loudspeaker connected to MonoOut is
implemented on the Expansion Board. A larger 0.4 W loudspeaker is
located on the Carrier Board at X36 and is connected to signals
LOUT2 and ROUT2.
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