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Synthiam
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#2  

Analog output would be pwm. The answer is yes:)

#3  

you could see it that way I guess but in my mind that is a pure 0V and 5V line no increasing/decreasing sinusoidal wave just a variance in the pulse width, kind of more digital to me , but you da boss DJ.

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Synthiam
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#4  

Hehe it's as close as analog output as you'll get from a digital source:)

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#6  

You can generate an analog out from the EZB PWM this is an example circuit there are lots of others. You just need a low pass filter which could be just a capacitor and a resistor click here