Question

Problems 805 +20 V +20 V +20 V E10 kn +5 V 10 k 10 kn +5 V o V. 10 kn 10 kn 10 kn Vao sig V ImA 0.5 mA 0.5 mA (c) (b) +5 v +20 V 1 mA 10 kf +5 V 10 kn 10 k0 Q2 o V. Ve + 0.5 mA 10 k 0.5 mA 0.5 mA -10 V (d) 0.5 mA 10 k0 10 kn sia (f) Figure P10.108 CHAPTER 10 PROBLEMS

In each of the six circuits in Fig. P10.108, let
β = 100, Cμ= 2 pF, and fT= 400 MHz, and neglect rx and
ro. Calculate the midband gain AM and the 3-dB frequency fH.

I need all the questions solution with a good way and good hand writing. thanks.

Answer 1

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15 K(0=09ns Cx LO Ryz=(902R Rt+R=(+20s 500))- 39.1 K +10 2 x i012 x 39.) xlo = 78.2 ns 2CR t t Yup 19.6+09+09 +182=99.6ns CH 2x.6X1 6M talded cascode apla cwautt (eThis s a -c6-7 vlv 520x 10OX (0 Art Stio Rl R5|| 10 = 333k2, R C=CrR Cx 112x 3 33x1oš- 20 ns R SO RR+mRe+ Rei = 333(it4010-05)+0.05 = 1005 kn Cafe CofRay2x 61 0.a5 Kt= 20. Ins 6x 10-12 0-05 xto= 0.3ns 2x1012x 10 X 103 - 20ns C CapR t lt Ymp 20-1 + 20+0.3t 20 = 60-4 ns 2.6 Mit Ch 2 60-4x16 civautt ( Thts is a CE--CB cascode The to that fox case A above Aq- so vlv ; tu = 5M 2 C ts Pdentfca wnayate Resu lt Casse ContquaTion AM( M 66-7 CE O039 Coscede -667 2-6 50 5 CC-CB 1-6 CC-CE 194 eFolded Cascak 6- 2.6 50 5 Cc-CB