126 Find the transfer function TVs =V2s=V1s of the circuit in Figure P126. (a) Find the dc...

12–6 Find the transfer function TVðsÞ =V2ðsÞ=V1ðsÞ of the circuit in Figure P12–6.

(a) Find the dc gain, infinite frequency gain, and cutoff frequency. Identify the type of gain response.

(b) Sketch the straight-line approximation of the gain response.

(c) Calculate the gain at ω=0:1 ωC, ωC, and 10 ωC.

(d) Use Multisim to plot the Bode magnitude gain response of the circuit. Validate your answers for part (c).

(e) What element values would you change to increase the cutoff frequency to 10 ωC?

(f) How many dB down from the passband is the filter at one decade past the cutoff?

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20 www v(t) 0.15 uF = ww 30 V2(f) 10 FIGURE P12-6