ECE214_CE2

Emitter degeneration in the absence of a bypass capacitor .....

• decreases small signal gain

• increases input impedance

• increases small signal gain

• decreases input impedance

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The output impedance of a cascode is

• larger than ro

• smaller than ro

Why do we need the capacitors shown in the circuit?

• to avoid turning off the BJT by the DC of the input source

• to avoid dropping the gain by the DC of the load

• to increase the input impedance of the circuit

• to decrease the output impedance of the circuit

The input impedance of the shown circuit is

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