I'm making a basic digital audio recorder with an ADC, PICAXE microcontroller and EEPROM, and I have a quick question about ADC usage.
I don't want to use the internal ADC on the PICAXE because I'm concerned about speed issues - I'd rather get an external chip to do it, while the PICAXE manages other things.
So, I had a look, and found the . **broken link removed**
Looking at the spec, the input voltage is apparently supposed to be positive. I haven't had much experience with ADCs, so does anyone here, who's used this ADC before, know whether I'd have to bias my audio signal to be encode the full signal, and not just the positive section?
Many Thanks in advance!
Sput