SN8P1700
8-bit micro-controller build-in 12-bit ADC
ADC CIRCUIT
VDD
AVREF
AIN0/P40
MCU
MCU
Analog Signal Input
0.1uF
AVREFH is connected to VDD.
VDD
AVREF
Reference Voltage Input
Analog Signal Input
AIN0/P40
0.1uF
47uF
AVREFH is connected to external AD reference voltage.
Figure 12-2. The AINx and AVREFH Circuit of AD Converter
ꢂ
Note: The capacitor between AIN and GND is a bypass capacitor. It is helpful to stable the analog signal.
Users can omit it.
SONiX TECHNOLOGY CO., LTD
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Revision 1.94