2.1 Two passive filters are shown in figure 3 (a) and (b). Identify which one acts as a low pass filter, and which one w

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2 1 Two Passive Filters Are Shown In Figure 3 A And B Identify Which One Acts As A Low Pass Filter And Which One W 1 (95.06 KiB) Viewed 25 times

2.1 Two passive filters are shown in figure 3 (a) and (b). Identify which one acts as a low pass filter, and which one will act as a high pass filter, referring to components R1 and C1. Draw the response curves for both filters. (8) R1 HI INPUT SIGNAL C1 LOAD of INPUT SIGNAL R13 LOAD (a) (b) Figure 3 2.2 Four-pole filter is shown in Figure 4, determine the capacitance values required to produce a critical frequency of 2680 Hz if all the resistors in the RC low-pass circuits are 1.8 kV. Also select values for the feedback resistors to get a Butterworth response. (10) CAL CA2 RAL om RB1 w RA2 w Rg2 w CB1 } R CE2 Rz wm R2 2 poles 2 poles R 2 Figure 4: Cascaded low-pass filters, fourth-order configuration.