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A positive-voltage-supply ECL logic gate is shown in Figure P17.12. Neglect base currents.(a) What logic function is performed by this circuit.
(b) What are the logic 1 and logic 0 values of 2 at the output?
(c) When 1 = logic 0 for one of the three inputs, determine and 2.
(d) Repeat part (c) when 1 = logic 1 for all three inputs.