Hey there.. This is my homework..
i really need someone who can check whether i'm doing
it right or not.. =)
Question:
Design a first order Butterworth low pass filter with cut-off frequency fo = 20 kHz and the gain K = 1
fo = 20kHz
K = 1
When K = 1, we can ignore R1 and Rf
formula :
ωo = 1/RC
2∏fo = 1/RC
Set R = 1kΩ
2∏fo = 1 / (1000) C
C = 1 / (1000)(2∏fo)
C = 7.96nF
Answer: R = 1kΩ ; C = 7.96nF
My answer is correct?
i really need someone who can check whether i'm doing
it right or not.. =)
Question:
Design a first order Butterworth low pass filter with cut-off frequency fo = 20 kHz and the gain K = 1
fo = 20kHz
K = 1
When K = 1, we can ignore R1 and Rf
formula :
ωo = 1/RC
2∏fo = 1/RC
Set R = 1kΩ
2∏fo = 1 / (1000) C
C = 1 / (1000)(2∏fo)
C = 7.96nF
Answer: R = 1kΩ ; C = 7.96nF
My answer is correct?