Determine the reference voltage vr - determine the logic 0

Question

Consider the ECL circuit in Figure. The input voltages A and B are compatible with the output voltages v_O1 and v_O2.

(a) Determine the reference voltage V_R.

(b) Determine the logic 0 and logic 1 levels at the outputs v_O1 and v_O2.

(c) Determine the voltage V_E for A = B = logic 0 and for A = B = logic 1.

(d) Determine the total power dissipated in the circuit for A = B = logic 0 and for A = B = logic 1.