stanleyche
Newbie level 4
Hi, I have a question about time constant. For a 1st order RC filter, time constant=RC, which obviously has the unit of [second]. The bandwidth of this filter is 1/(2*pi*RC), which has the unit of [Hz]=[cycle/second]. I just don't know how this unit comes about. Here is my confusion:
If RC has the unit of [second], then 2*pi must be 1/[cycle] to make 1/(2*pi*RC) have the unit of [cycle/second]. But it seems weird to me that 2*pi is in unit of 1/[cycle].
Thanks for any help!
If RC has the unit of [second], then 2*pi must be 1/[cycle] to make 1/(2*pi*RC) have the unit of [cycle/second]. But it seems weird to me that 2*pi is in unit of 1/[cycle].
Thanks for any help!