Consider the circuit in Figure P17.14. Neglect base currents.

(a) What are the logic 1 and logic 0 values at the output terminals \(v_{O 1}\) and \(v_{O 2}\) ?.

(b) For \(v_{X}=v_{Y}=\operatorname{logic} 0\), determine \(R_{E}\) such that \(i_{E}=0.25 \mathrm{~mA}\).

(c) Using the results of part (b), determine \(R_{1}\) such that \(i_{D 1}=2 i_{R 1}\) when \(Q_{R}\) is conducting.

(d) For \(v_{X}=v_{Y}=\) logic 1 and \(R_{1}=R_{2}\), determine \(i_{E}, i_{R 2}\), and \(i_{D 2}\).

(e) For \(v_{X}=\operatorname{logic} 0\) and \(v_{Y}=\operatorname{logic} 1\), calculate the power dissipation in the circuit.

Transcribed Image Text:

iR2 www R +0.9 V JiD2 tip Ri UX Uy o Q2 QR ww Figure P17.14 -3.10 V ww R3 = 3.3 k RE ww IRL Q3 www Q4 -0002 R = 13.3