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Unformatted text preview: co(SAT)-I RC then I co(SAT) ≥ 41/6mA+2.4mA then I BO(SAT) ≥ (41/6mA+2.4mA)/(0.8*50) I BO(SAT) ≥ (41/6mA+2.4mA)/40 I BO(SAT) =I E-I RD 41/6mA+2.4mA≤40*( I E-0.1) 41/6mA+2.4mA≤40*(2.1/(ρ * 6K)-0.1) 13.233≤14/ρ For all rho between 0 and 1, this condition is satisfied. d) Pavg=(P OH +P OL )/2 P OH =V CC* I IL =5*(5-0.9)/6K=3.416mW (No current flow from other supplies) I ρRB =(V cc-2V D,on-V BE,L(ON)-V BE,O(SAT) )/rho*R B= (5-0.7-2*0.7-0.8)/4.2K=0.5mA I RC = ( V CC-V CE,SAT )/R C =(5-0.2)/2K=2.4mA I RD =(V BE,SAT-(-0.2))/R D =0.1mA P OL =5 *( I ρRB+ I RC) + (-0.2)(-0.1mA)=14.52mW P avg =8.968 mW 2) V(in) vs V(out) Transient analysis (20p) Rise time: 90ns, Fall time: 2.7 ns Propagation delays: t(plh): 29 ns t(phl):0.15ns (or less than 1ns), tp=tphl*0.5+tplh*0.5= 14.6 ns Rise time: 162 ns, Fall time: 5 ns Propagation delays: t(plh): 60 ns t(phl): 1.8ns, tp=tphl*0.5+tplh*0.5=30.9 ns...
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- Spring '11