In the circuit of let VCC 5 2VEE 5 6 V, RC1 5 RC2 5 100 kV, and IEE 5 0.5 mA. Moreover, let vI1 5 (100 mV)cos t and vI2 5 0. (a) Specify suitable values for RE1 5 RE2 so as to ensure that both BJTs...

In the circuit of let VCC 5 2VEE 5 6 V, RC1 5 RC2 5 100 kV, and IEE 5 0.5 mA. Moreover, let vI1 5 (100 mV)cos t and vI2 5 0. (a) Specify suitable values for RE1 5 RE2 so as to ensure that both BJTs meet the small-signal constraint uvbeu # 5 mV. What are the ensuing emitter ac voltages ve1 and ve2? (b) Find vod. Find the small-signal resistance Ri1 seen looking into Q1’s base if 0 5 250.