RHF310AK01V View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'RHF310AK01V' PDF : 25 Pages View PDF
RHF310A
Active filtering
ωc =
----------1-----------------
R1R2C1C 2
The damping factor is calculated using the following expression.
ζ
=
1
2
ωc (
C1R1
+
C1R2
+
C2R1
–
C1R1g)
The higher the gain, the more sensitive the damping factor. When the gain is higher than 1, it is preferable to use
very stable resistor and capacitor values. In the case of R1 = R2 = R:
ζ = -2--C--2--–--C-----1---R--R------f-g--b---------
2 C1C2
Due to a limited selection of capacitor values in comparison with the resistors, you can set C1 = C2 = C, so that:
ζ = -2--R--2--–--R-----1---R--R------f-g--b---------
2 R1R2
DS6201 - Rev 7
page 16/25
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