The following post caught my eye.
I built a cct with variable pwm and frequency offered up by crutschow several months ago--thanks
I wish to feed the output of several on these to a DAC in order to achieve an audio output.
Dec 2, 2017#6
crutschowExpert
Mar 15, 2008
22,364
6,535
↑
won't almost any DAC work?
Nope. No DAC will work.
A DAC takes a digital number of typically 8-bits or more and converts that to a voltage.
That's not even close to what's required to convert a PWM signal (which is a square-wave with a varying duty-cycle) to a voltage.
Hi , so what is needed circuit wise to convert a PWM to make it DAC friendly?
I built a cct with variable pwm and frequency offered up by crutschow several months ago--thanks
I wish to feed the output of several on these to a DAC in order to achieve an audio output.
Dec 2, 2017#6
crutschowExpert
Mar 15, 2008
22,364
6,535
↑
won't almost any DAC work?
Nope. No DAC will work.
A DAC takes a digital number of typically 8-bits or more and converts that to a voltage.
That's not even close to what's required to convert a PWM signal (which is a square-wave with a varying duty-cycle) to a voltage.
Hi , so what is needed circuit wise to convert a PWM to make it DAC friendly?