10.93 Figure 10.135 shows a Colpitts oscillator. Show that the ed oscillation frequency is 1 fo= 2π √√LCT where CTC₁C2/(C₁ + C₂). Assume R; >>> R₁ + Rf ww Vo L m C₂ C₁ 5 Xci Figure 10.135 A Colpitts oscillator; for Prob. 10.93. (Hint: Set the imaginary part of the impedance in the feedback circuit equal to zero.)

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10.93 Figure 10.135 shows a Colpitts oscillator. Show that the
ed oscillation frequency is
1
fo=
2π √√LCT
where CTC₁C2/(C₁ + C₂). Assume R; >>>
R₁
+
Rf
ww
Vo
L
m
C₂
C₁
5
Xci
Figure 10.135
A Colpitts oscillator; for Prob. 10.93.
(Hint: Set the imaginary part of the impedance in the
feedback circuit equal to zero.)
Transcribed Image Text:10.93 Figure 10.135 shows a Colpitts oscillator. Show that the ed oscillation frequency is 1 fo= 2π √√LCT where CTC₁C2/(C₁ + C₂). Assume R; >>> R₁ + Rf ww Vo L m C₂ C₁ 5 Xci Figure 10.135 A Colpitts oscillator; for Prob. 10.93. (Hint: Set the imaginary part of the impedance in the feedback circuit equal to zero.)
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