Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

Preview PDF HTML

AN3984 Datasheet(PDF) 8 Page - STMicroelectronics

Part # AN3984
Description  The purpose of this document is to provide a tool to calculate
PDF  46 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3984 Datasheet(HTML) 8 Page - STMicroelectronics

Back Button AN3984 Datasheet HTML 4Page - STMicroelectronics AN3984 Datasheet HTML 5Page - STMicroelectronics AN3984 Datasheet HTML 6Page - STMicroelectronics AN3984 Datasheet HTML 7Page - STMicroelectronics AN3984 Datasheet HTML 8Page - STMicroelectronics AN3984 Datasheet HTML 9Page - STMicroelectronics AN3984 Datasheet HTML 10Page - STMicroelectronics AN3984 Datasheet HTML 11Page - STMicroelectronics AN3984 Datasheet HTML 12Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 46 page
background image
Second-order filter design
AN3984
8/46
Doc ID 022240 Rev 1
4
Second-order filter design
4.1
Low-pass and high-pass filters
The preliminary step to obtain the coefficients for a second-order filter is the calculation of
these coefficients obtained from the filter parameters:
Equation 12
The denominator coefficients are the same for both an LPF and an HPF if designed for the
same cutoff frequency. They are computed as follows:
Equation 13
4.1.1
Low-pass filter
The numerator coefficient for a second-order LPF can be calculated as follows:
Equation 14
()
W
Q
K
DE
K
K
W
K
f
f
c
s
c
c
+
+
=
+
=
=
=
⋅
⋅
=
1
1
2
tan
2
2
α
ω
π
ϑ
()
DE
W
Q
K
a
DE
W
a
a
+
−
=
−
⋅
=
=
1
1
2
1
2
1
0
DE
W
b
DE
W
b
DE
W
b
=
⋅
=
=
2
1
0
2



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com