The circuit of utilizes a pn diode operating in the small-signal mode to implement a CR high-pass fi lter with a 23-dB frequency that is current controlled. (a) Draw the equivalent small-signal...

The circuit of utilizes a pn diode operating in the small-signal mode to implement a CR high-pass fi lter with a 23-dB frequency that is current controlled. (a) Draw the equivalent small-signal circuit, derive its transfer function H(j ), and show that its 23 dB frequency is 0 5 IDy(VTC). (b) If C 5 33 nF, what is the value of 0 at ID 5 0.1 mA? (c) Assuming vi 5 (5 mV) cos 105 t, fi nd vo (amplitude as well as phase) at ID 5 0.2 mA. If the diode used is such at that at 700 mV it gives 1 mA, what is the DC component of the output? (d) Repeat (c), but at ID 5 50 A.