Question

Vout TL074 10kS2 10 mH Figure 2. LC bandpass resonant filter 4. In Part 2 of this lab, you will construct a "resonant" LC bandpass filter (Fig. 2). The filter will only allow signals at the resonant frequency to pass through. For example, if you input a 1kHz square wave into a 5kHz resonant bandpass filter, the resulting output will be a sinusoid at 5kHz. From Prelab Part 1, we know that a square wave can be represented as an infinite sum of sinusoids. As such, when the input is a square wave (sum of sinusoids), the resonant bandpass filter "cancels" all sinusoids except for the one at the filter's resonant frequency 5. Calculate a reasonable capacitor value for a LC bandpass "resonant" filter (Fig. 2) at 10kHz. Buy 1 inductor (10mH) and 1 capacitor (the value you solve for). The tank oscillator (LC in parallel in Fig. 2) is followed by a non-inverting amplifier stage to boost the output voltage of the filtered signal. The resonance frequency is given by: fo = 1/(2π.TC)

Answer 1

LK out loko- Given Srot; Refonand .etquency cp 4ra ha 위tter : Given L=10m) 0,o00 - Naud Vout remnant frequengs