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-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))
```