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5 X) z1 R* Z& H0 B# nThe low pass active filter is shown in Figure 5. The DC gain is defined by –R2/R1. The filter has a -20dB/decade roll-off after its
! ^6 O" `! \7 f1 a1 J7 dcorner frequency ƒC=1/(2πR3C1).
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