-Draw the circuit in Figure 1. Label the part that acts as a filter and the part that acts as a buffer. Let
R_(in)=13k\Omega
and
C=13.6nF
. What is the -3 dB cutoff frequency of the filter? -What's the DC value of
v_(out )
shown in Figure 2 -In Figure 2, let
C_(1)=C_(2)=6.8nF
so that our resistors have reasonable values. Choose the values of resistors 1 through 4 such that you have
V_(1)=6VDC
, quality
Q=5
, unity gain
A_(v)
, and center frequency
f_(0)=900Hz
:
R_(1)=(Q)/(A_(v)\omega _(0)C_(1))
R_(2)=(Q)/((2Q^(2)-A_(v))\omega _(0)C_(1))
R_(3)=(2Q)/(\omega _(0)C_(1))