Ch07p - Chapter 7 Exercise Solutions EX7.1 (a) (i) RS = RP...

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Chapter 7 Exercise Solutions EX7.1 (a) (i) () ( ) ω π μ = + = ==Ω = = + = 3 4 k 11 2 22 0441 0 0.995 F SP SS P S S S RR rR R C C fR R C (ii) ⎛⎞ = ⎜⎟ + + ⎝⎠ =+ = × == ++ = × = ⎡⎤ ⎣⎦ = = × = = = × = 3 3 2 3 3 2 3 1 7.96 10 4 0.5 44 40 Hz 0.5 2 40 7.96 10 1 2 40 7.96 10 0.447 80 Hz 0.5 2 80 7.96 10 1 2 80 7.96 10 0.485 200 Hz 0.5 2 200 7.96 S P S P S P r R Tj r R C R f f f = 3 2 3 10 122 0 07 . 9 6 1 0 0.498 (b) = = ×× = & & & 33 1 2 1 2 500 10 10 10 10 63.7 pF PS P P P P R C C C EX7.2 a.
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() ( ) 10 3 63 20 log 1 0.891 1 0.891 0.891 8.20 k 1 11 2 21 0 018 . 2 01 0 0.173 F 2 2 10 1 || 8.20 10 179 pF PPP PP PS P LS SP S S HP P P RRR RR R fC RRC C C π μ ⎛⎞ =− == −= ⎜⎟ ++ + ⎝⎠ = = + = = = × = & b. ( ) =+ + × × = = × = & & 33 6 31 2 1 10 8.20 10 0.173 10 1.59 ms open-circuit time-constant 18 . 2 0 1 7 91 0 0.160 s short-circuit time-constant SS P S S S P P P P rR R C r r R C r r EX7.3 a. Si S C i R C b. ( ) ( ) β = = Ω = = + = = Ω = && 12 2 1 2 2.2 20 1.98 k 2.2 10 0.991 V 2.2 20 on 0.991 0.7 0.0132 mA 1 1.98 201 0.1 2.636 mA 200 0.026 1.97 k 2.636 2.636 101.4 m 0.026 S TH TH CC TH BE BQ TH E CQ T CQ CQ m T f r R R VV I I V r I I g V ( ) ( ) ( ) τβ =++ = + = Ω Ω = Ω × × = = = × & 36 3 A/V 1 1.97 201 0.1 22.1 k 1.98 k 1.98 22.1 1.817 k 1.817 0.1 10 47 10 90.1 ms 1 1.77 Hz 2 90.1 10 ib E B iB i b S i C R R C ff Midband Gain
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() ( ) ( ) ν π β =⋅ ++ + =− 1 200 2 1.82 1.97 201 0.1 1.82 0.1 17.2 Ci Ei S i RR A rR R R A EX7.4 2 DQ n GS TN IK V V a. 0.8 23 . 2 6 5 V 0.5 5 3.265 3.265 5 2.17 k 0.8 5 06 . 2 5 k 0.8 GS GS S SD Q S SS DD D VV V VI R VR R += = −− = −+ = = = b. ( ) μ =+ = + × × = = × = = × 3 3 3 10 6.25 10 11 2 2 16.25 10 1 0.49 F 2 20 16.25 10 L C C C S CC R C C fC r f EX7.5 ππ = = + ⎧⎫ + ⎪⎪ = ⎨⎬ + ⎩⎭ & & 2 2 00 22 1 SL o C C o SB E R C rf R R R RRr From Example 7-5, 0 35.5 R 2 3 2 1 2 10 10 10 35.5 1.59 F C C C C = ⎡⎤ ×+ ⎣⎦ = EX7.6 a. = = = = 2 1 . 4 1 V 0.5 3.41 53 . 4 1 1.59 k 1 DQ P SG TP SG SG S V V V 5 For 0 5 k 1 SDG SGQ D D D V R R = = =
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b. () ππ π = = = = = × & & & 63 11 22 1 47.7 pF 2 10 5 10 10 PD L L L L LL rR R C fC rf R R CC EX7.7 (a) = =− −− == + = = = = 5 K 3.7527 3.7527 0.7 5 0.54726 5 101 0.5 55.5 0.00986 0.986 mA 37.925 2.637 K 5 0.986 1 0.4 55 0.035 TH TH BQ CQ m oo o o R V I I gr VV V V (b) ± ² R S ³ 0.1 k ´ R TH ³ 5 k ´ R C ±± R L ³ 2.5 k ´ V ± r ± R E ³ 0.5 k ´ R ib ± ² g m V ± V 0 V i ( ) ( ) ( ) β = =++ = + = = ⎛⎞ + + + ⎜⎟ ⎝⎠ ++ = + & & & & & 1 2.64 101 0.5 53.14 K 101 14.885 1 10 . 5 1 2.637 5 53.14 5 53.14 0.1 4.57 0.9786 4.57 0.1 37.925 2.5 0. 14.885 omC L ib E bb b E TH ib bi i TH ib S i v Vg V R R Rr R V V R r RR VVV RRR V A 9786 6.23 v A (c) EX7.8 a.
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() ( ) ( ) π β −− == + = = Ω = 00 . 7 1 0 0.0230 mA 0.5 101 4 2.30 mA 100 0.026 1.13 k 2.30 2.30 88.46 mA / V 0.026 BQ CQ T CQ CQ m T I I V r I I g V ( ) + = +++ ×+ = ++ 3 1 4 10 0.5 1.13 0.5 1.13 101 4 ES E B SE E RR rC r Rr R C ππ μ = × = = = 3 11 0.7958 ms 22 2 0 0 0.796 10 16.07 49.5 F 16.07 B B BE E E r f rC C C b.
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Ch07p - Chapter 7 Exercise Solutions EX7.1 (a) (i) RS = RP...

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