i.MX RT1020 16-bit resolution PWM

[614678489]

I wanna use the 16-bit resolution PWM output as a Digital-to-Analog Converter.

Compared with the conventional 16-bit resolution DAC， is there any difference in terms of the "accuracy" ?

[igorpadykov]

Hi Fun

in conventional DAC "accuracy" is defined by precision reference voltage,

while using pwm one need take into account stability pwm frequency or

filtering components.

Best regards
igor
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[614678489]

Thanks, assume that the PWM frequency stability and the filtering components have been adjusted very well, can the PWM output achieve the same "accurary" with the conventional DAC ?

[igorpadykov]

in general, yes.

Best regards
igor

[614678489]

Gentleman, are you still there ？ as to the filtering components, do you refer to the filters inside RT1020， or,  we should design the filtering circuits outside RT1020 ？

[igorpadykov]

seems better to design the filtering circuits outside RT1020.

Best regards
igor

[614678489]

Thanks, as to the filtering components, do you refer to the filters inside RT1020， or,  we should design the filtering circuits outside RT1020 ？