Shown in Fig. P4.40 is the pnp realization of the EC pair concept. Let VEE 5 2VCC 5 6 V, RC1 5 RC2 5 5 kV, IEE 5 1 mA, and REE 5 `. (a) Find vO1, vO2, and vOD if vI1 5 vI XXXXXXXXXXb) What happens if...

Shown in Fig. P4.40 is the pnp realization of the EC pair concept. Let VEE 5 2VCC 5 6 V, RC1 5 RC2 5 5 kV, IEE 5 1 mA, and REE 5 `. (a) Find vO1, vO2, and vOD if vI1 5 vI2 5 0. (b) What happens if vI1 5 vI2 5 1.0 V? If vI1 5 vI2 5 21.0 V? (c) Find vO1, vO2, and vOD if vI1 5 30 mV and vI2 5 0. (d) If vI1 5 0, fi nd vI 2 so that vOD 5 4 V. (e) If VE0 denotes the voltage at the emitters in part (a), what is the voltage at the emitters in part (b)? In part (c)?