1. In the circuit below find the expression of the frequency response H and plot the corresponding Bode plot for R1=12, R2=20 and C=1µF. Is it a high pass or a low pass filter? What is the gain in the pass-band? Find the -3dB cut-off frequency using the graph and by computing it. R1 C + + R2 V out Vị

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T8.1 : cutoff frequency
1. In the circuit below find the expression of the frequency response H and plot the
corresponding Bode plot for R1=1N, R2=2N and C=lµF. Is it a high pass or a low pass
filter? What is the gain in the pass-band? Find the -3dB cut-off frequency using the graph
and by computing it.
+
R1
+
Vout
R2
Vị
53kHz
gain 2/3 (or -3.5dB)
high-pass
Answer:
Transcribed Image Text:T8.1 : cutoff frequency 1. In the circuit below find the expression of the frequency response H and plot the corresponding Bode plot for R1=1N, R2=2N and C=lµF. Is it a high pass or a low pass filter? What is the gain in the pass-band? Find the -3dB cut-off frequency using the graph and by computing it. + R1 + Vout R2 Vị 53kHz gain 2/3 (or -3.5dB) high-pass Answer:
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