Determine the critical frequency and V_{out} at f_{c} for an input of 10 V for the RC low-pass filler in Figure 18-2.
Question 18.2: Determine the critical frequency and Vout at fc for an input...
f_{c}= \frac{1}{2\pi RC}= \frac{1}{2\pi (100 \ \Omega )(0.0047 \ \mu F)}= 339 \ kHz
The output voltage is 3 dB below V_{in} at this frequency (V_{out}, has a maximum value of V_{in}).
V_{out}= 0.707V_{in}= 7.07 V
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