Part Number:AFE4300
Hi, can't understand what is the voltage this chip uses? Datasheet said
| Operating Supply Voltage: | 2 V to 3.6 V |
But when I connected SPI to 3.3v level pins and gonna read default value of ADC_CONTROL_REGISTER1 (address 0x01 default value is 0x01C3) I got 0xFFFF. I use nrf51 with cortex m0.
So when I connected it to Arduino Mega 2560 with SPI level 5.0v, I see correct value of this register. Also I tried to read 4 more registers (addresses: 0x02, 0x03,...) they gave me the correct values too.
I powered up AFE4300 with 3.3v. I didn't pull up/down signal lines. Also I tested DRDY pin with multimeter and it shows 1.65v. And before reading the register I reseted my AFE4300