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AN3984 Datasheet(PDF) 23 Page - STMicroelectronics

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

AN3984 Datasheet(HTML) 23 Page - STMicroelectronics

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AN3984
Examples
Doc ID 022240 Rev 1
23/46
5.9
Band-pass filter
Input data:
●
Cutoff freq: 1 kHz
●
Gain: +6 dB
●
Quality factor: 3
●
Coefficient range: 4
●
Processing frequency: 96 kHz
Output data:
Figure 9.
Band-pass filter - magnitude response
Filter coefficients
'Coeff 1: b1/2'
'Coeff 2: b2'
'Coeff 3: -a1/2'
'Coeff 4: -a2'
'Coeff 5: b0/2'
'000000'
'ff4fc0'
'1f9650'
'e0b0ab'
'00581f'
10
-1
10
0
10
1
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
Frequency (kHz)
Magnitude Response (dB)



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