Differenze tra le versioni di "Arduino NANO + 19 resistors = A DDS signal generator"
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Versione delle 09:59, 30 mar 2018
This is the schematics and the prototype...
It generates signals (very nice to 1300 hz, acceptable to 10khz) using a N - 2N resistor ladder DAC.
It has been designed to be plugged on 7 contiguous pins (GND, D2, ... , D7).
Using 150ohm resistors its impedence is around 300ohm. It generates 0 to Vcc waves on an open circuit, 0 to Vcc/2 on a 300 ohm Load.