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Find an estimate for the lower and upper cut-off frequencies for the amplifier circuit shown in Figure Q4. Q4. The device capacitances for the transistors are: Chel = 30 pF, Chel = 2 pF, Ceel = 0.1 pF, Che2 = 20 pF, Chc2 = 1 pF and Cee2 =0.25 pF. Use B = 100 for both transistors in your calculations. The small signal model parameters for the transistors are: Tal = 2 k2, gml = 50 mS, r2 =4 kN, gm2 = 25 mS, For the low-frequency: @ where Tps are the time constants for the capacitors. For the high-frequency: Vc 14 V Rs 5.6 kn 180 pF R 68 k R Q, 2N 3905 5.6 kn 2N Qi 3903 15 uF R2 68 k 0.47 uF 600n 220 n RL 40 ka R3 47 k R. 5.6 ksa 4.7 k2 Figure Q4

Find an estimate for the lower and upper cut-off frequencies for the amplifier circuit shown in Figure Q4. Q4. The device capacitances for the transistors are: Chel = 30 pF, Chel = 2 pF, Ceel = 0.1 pF, Che2 = 20 pF, Chc2 = 1 pF and Cee2 =0.25 pF. Use B = 100 for both transistors in your calculations. The small signal model parameters for the transistors are: Tal = 2 k2, gml = 50 mS, r2 =4 kN, gm2 = 25 mS, For the low-frequency: @ where Tps are the time constants for the capacitors. For the high-frequency: Vc 14 V Rs 5.6 kn 180 pF R 68 k R Q, 2N 3905 5.6 kn 2N Qi 3903 15 uF R2 68 k 0.47 uF 600n 220 n RL 40 ka R3 47 k R. 5.6 ksa 4.7 k2 Figure Q4

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Q4. Find an estimate for the lower and upper cut-off frequencies for the amplifier circuit shown in Figure Q4. The device capacitances for the transistors are: Chel = 30 pF, Chel = 2 pF, Cel = 0.1 pF, Che2 = 20 pF, Che2 = 1 pF and Cee2 = 0.25 pF. Use B = 100 for both transistors in your calculations. The small signal model parameters for the transistors are: Tal = 2 k2, gml = 50 mS, r-2 = 4 kN, gm2 = 25 mS, %3D For the low-frequency: @ where Tpß are the time constants for the capacitors. For the high-frequency: Vc 14 V C, Rs 5.6 kn 180 uF R R, 68 k Q, 2N 3905 5.6 kN |2N Qi 3903 1S µF R U, 68 k2 0.47 uF 600 n 220 n R 40 ka R 47 ka 8 uF 5.6 ksa 4.7 ka Figure Q4
Transcribed Image Text:Q4. Find an estimate for the lower and upper cut-off frequencies for the amplifier circuit shown in Figure Q4. The device capacitances for the transistors are: Chel = 30 pF, Chel = 2 pF, Cel = 0.1 pF, Che2 = 20 pF, Che2 = 1 pF and Cee2 = 0.25 pF. Use B = 100 for both transistors in your calculations. The small signal model parameters for the transistors are: Tal = 2 k2, gml = 50 mS, r-2 = 4 kN, gm2 = 25 mS, %3D For the low-frequency: @ where Tpß are the time constants for the capacitors. For the high-frequency: Vc 14 V C, Rs 5.6 kn 180 uF R R, 68 k Q, 2N 3905 5.6 kN |2N Qi 3903 1S µF R U, 68 k2 0.47 uF 600 n 220 n R 40 ka R 47 ka 8 uF 5.6 ksa 4.7 ka Figure Q4
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