Question

tage 2:Baseband Filter The filter schematic is shown in Fig. 3. Select resistor Rj and capacitor C1 so that the cut-off frequency of the filter response is below 100kHz. The input network formed by resistors Rsrc, R2 and capacitor C2 also has a low pass response that should attenuate the input Vsrc seen at the top of capacitor C2 by -3dB at 200kHz. The magnitude of the voltage gain at low frequency should be Vout/Vsrc-50V/V. Ensure that the Op Amp supplies are adequately decoupled to ground src src out Fig. 3: Active low-pass filter schematic diagram Derive the transfer function assuming that an ideal op amp is used for the implementation Use LTSpice to verify your predictions and plot the filter transfer function using a suitable model for the Op Amp. In the laboratory, experimentally verify the frequency response by measuring the small-signal input impedance and voltage gain up to IMHz. Also, experimentally determine the low-frequency gain and input impedance at 1kHz when the input signal amplitude (Vsrc) is a 0.1Vpk-pk sinewave. Compare your measured data and LTSpice predictions from simulation.

is it ok to use R1=4.7Kohms and C1=330pf? And I want to know how to calculate the R2, Rsrc, and C2

Answer 1

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