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2 \; @; L9 p7 A& BThe 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 4 j8 N' v8 L; p; G3 n) j
corner frequency ƒC=1/(2πR3C1).: b: H2 v! n1 \$ K3 M$ \7 L: z
. {) R, ?0 t) O1 E H
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