BL602/604 Reference Manual
pushed into the FIFO.
4.3.1 ADC pins and internal signals
Table 4.1: ADC internal signals
Internal
signals
Signal type
Description
VBAT/2
Input
Voltage signal divided from the power pin
TSEN
Input
Internal temperature sensor output voltage
VREF
Input
Internal analog module reference voltage
DACOUTA
Input
DAC module output
DACOUTB
Input
DAC module output
Table 4.2: ADC external pins
External
pins
Signal type
Description
VDDA
Input
Analog power supply and positive reference
voltage for the ADC
VSSA
Input
Ground for analog power supply
ADC_CHX
Input
12 analog input channels
4.3.2 ADC channel
The channels that can be selected by the ADC include the input signals of external analog pins and the optional
signals inside the chip:
• ADC CH0
• ADC CH1
• ADC CH2
• ADC CH3
• ADC CH4
• ADC CH5
• ADC CH6
BL602/604 Reference Manual
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