AC97 and Touch Controller
PHYTEC Meßtechnik GmbH 2004 L-657e_0
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The signals from the integrated touch controller are routed to
connector X25 on the Development Board.
The WM9712L IC also provides four analog inputs that can be used
for voltage monitoring purposes.
ADC
Function
AUX0
AKKU_COMP, battery voltage
AUX 1
AKKU_IBAT, battery current draw
AUX 2
AKKU_TEMP, battery temperature
AUX 3
Light sensor
Table 42:
Voltage Supervision with WM9712L
The sound portion of the WM9712L supports microphone (mono),
stereo input und stereo output.
Sound Jack
Functions
X28
Mikrophone input (mono)
X27
Stereo input
X26
Stereo output
Table 43:
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 0.4W loudspeaker is
located on the Development Board at X36 and is connected to signals
LOUT2 and ROUT2.
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