I have just recieved an arduino DUE which I am very excited about. My initial reason for getting it is for synthesis/audio applications.
I haven't touched the DAC yet as I have heard some baaad things about what can happen to it if you connect speakers or amps straight.
Could someone please help me with the best approach to using the DAC0 and DAC1 without blowing it out?
I have seen some reference circuits using an LM386... Are these definitely safe?
Could I use an op-amp circuit such as a TL072 summing amp?
And also, if I wanted to do a simple test running a loop through the DAC to create a triangle wave for testing purposes like this:
analogWriteResolution(12); // 12-bit!
for(int x=0; x<4096; x++)
analogWrite(DAC0, x); // use DAC1 for ... DAC1
for(int x=4095; x>=0; --x)
Could I then connect DAC0 and GND straight to an oscilloscope probe with no fear of retribution??
Any help greatlt appreciated,