For the transistors in the TTL circuit in Figure P17.34, the parameters are \(\beta_{F}=100\) and \(\beta_{R}=0.3\) (for each input emitter).

(a) For \(v_{X}=v_{Y}=v_{Z}=\) \(2.8 \mathrm{~V}\), determine \(i_{B 1}, i_{B 2}\), and \(i_{B 3}\).

(b) For \(v_{X}=v_{Y}=v_{Z}=0.1 \mathrm{~V}\), determine \(i_{B 1}\) and \(i_{B 4}\) for a fanout of 5 .

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+2.8 V 0.9 : 2 24 22 Uy o Vzo Q3 Figure P17.34 1.0 10.5