In the circuit in the figure, Vcc = 18 V, Rs1 = 0.9 kΩ, Rs2 = 0.5 kΩ, R1 = 75 kΩ, R2 = 15 kΩ, RC = 2.2 kΩ, RE = 1 kΩ and β =120. It is also known that Cwi = 6 pF, Cwo = 10 pF, Cbc = Cu = 7 pF, Cbe = Cπ = 48 pF and Cce = 11 pF. Accordingly, considering the frequency response of the circuit, what would be the high cutoff frequency (fH)? NOTE-1: The output impedance of the transistor is r0 = 20 kΩ and will be taken into account in the calculations. NOTE-2: The high frequency dependence of hfe, β, will be taken into account. a. 719,95 kHz b. 143,99 kHz c. 48,00 kHz d. 191,99 kHz e. 575,96 kHz f. 479,97 kHz g. 335,98 kHz h. 623,96 kHz
In the circuit in the figure, Vcc = 18 V, Rs1 = 0.9 kΩ, Rs2 = 0.5 kΩ, R1 = 75 kΩ, R2 = 15 kΩ, RC = 2.2 kΩ, RE = 1 kΩ and β =120. It is also known that Cwi = 6 pF, Cwo = 10 pF, Cbc = Cu = 7 pF, Cbe = Cπ = 48 pF and Cce = 11 pF. Accordingly, considering the frequency response of the circuit, what would be the high cutoff frequency (fH)? NOTE-1: The output impedance of the transistor is r0 = 20 kΩ and will be taken into account in the calculations. NOTE-2: The high frequency dependence of hfe, β, will be taken into account. a. 719,95 kHz b. 143,99 kHz c. 48,00 kHz d. 191,99 kHz e. 575,96 kHz f. 479,97 kHz g. 335,98 kHz h. 623,96 kHz
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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In the circuit in the figure, Vcc = 18 V, Rs1 = 0.9 kΩ, Rs2 = 0.5 kΩ, R1 = 75 kΩ, R2 = 15 kΩ, RC = 2.2 kΩ, RE = 1 kΩ and β =120. It is also known that Cwi = 6 pF, Cwo = 10 pF, Cbc = Cu = 7 pF, Cbe = Cπ = 48 pF and Cce = 11 pF. Accordingly, considering the frequency response of the circuit, what would be the high cutoff frequency (fH)?
NOTE-1: The output impedance of the transistor is r0 = 20 kΩ and will be taken into account in the calculations.
NOTE-2: The high frequency dependence of hfe, β, will be taken into account.
a.
719,95 kHz
b.
143,99 kHz
c.
48,00 kHz
d.
191,99 kHz
e.
575,96 kHz
f.
479,97 kHz
g.
335,98 kHz
h.
623,96 kHz
Transcribed Image Text:Vcc
R1
RC
C3
Vo
1µF
C1
Rs2
C2
Q1
Vi-
NPN
1µF
1µF
Rs1
R2
RE
CE
10µF
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