Adc Interfaces - Quectel FGM842D Hardware Design

3.4.5. ADC Interfaces

In the case of multiplexing, the module supports up to 6 10-bit ADC interfaces, whose voltage range is
0~3.3 V. To improve ADC accuracy, surround ADC traces with ground.
Table 11: Pin Definition of ADC Interfaces
Pin Name Pin No.
UART2_RXD 20
UART1_RXD 30
GPIO28 6
GPIO20 5
GPIO24 13
GPIO26 12
Table 12: ADC Features
Parameter
ADC Voltage Range
ADC Resolution
FGM842D_Hardware_Design
Alternate Function
ADC5
ADC6
ADC4
ADC3
ADC2
ADC1
Min. Typ.
0 -
- 10
Wi-Fi&Bluetooth Module Series
I/O Description
AI General-purpose ADC interface
AI General-purpose ADC interface
AI General-purpose ADC interface
AI General-purpose ADC interface
AI General-purpose ADC interface
AI General-purpose ADC interface
Max.
3.3
-
Unit
V
bit
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