Hello,
Per "Table 6.2: Recommended Power Operating Range" in BL702 Datasheet (6.2.1 Power characteristics) VDDIO_2 could be from 1.8V to 3.63V with typical value 3.3V. But in all other places of datasheet VDDIO_2 specified to be supplied with exactly 3.3V and no other values are supposed to be allowed:
I want to use GPIO9 pin as ADC input. Could I supply VDDIO_2 with 2.5V in this case?
Could VDDIO_2 be supplied with full range of supply voltages (1.8V to 3.3V) and there is an error in datasheet figures or 3.3V requirements are caused by hardware restrictions?