I’m going to feed a square wave signal to a low pass filter (RC filter).What I only know is the cut off frequency.
R=10K, C= 10uF
Cut off frequency = 1.59Hz
Let say I’m feeding a 1Khz square wave.
Voltage level 0V-5V
PWM signal from a PIC pin @ 50% duty cycle.
My question is why I have to worry on the PWM frequency?
R=10K, C= 10uF
Cut off frequency = 1.59Hz
Let say I’m feeding a 1Khz square wave.
Voltage level 0V-5V
PWM signal from a PIC pin @ 50% duty cycle.
My question is why I have to worry on the PWM frequency?