Explain the operation of frequency demodulation by using the PLL method.

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Explain the operation of frequency demodulation by using the PLL method.

50
-K-
1
cos
FM signal
kf
Integrator
Trigonometric
Function
Ac
Message signal
100
fe
Figure (2): FM Modulation.
butter
50
+1
Continuous-Time
VCO
Cos
Matrix
2n
Multiply
Trigonometric
Funcion
Messaze signal
Integrator
Matrix Muliply
Analog
Fiter Design
Cortinuous-Time
VCO
100
fe
Scope1
Figure (3): FM Demodulation.
Transcribed Image Text:50 -K- 1 cos FM signal kf Integrator Trigonometric Function Ac Message signal 100 fe Figure (2): FM Modulation. butter 50 +1 Continuous-Time VCO Cos Matrix 2n Multiply Trigonometric Funcion Messaze signal Integrator Matrix Muliply Analog Fiter Design Cortinuous-Time VCO 100 fe Scope1 Figure (3): FM Demodulation.
R1
2.7 kN
C2
0.047 µF 0.047 µF
OV out
R2
2.7 kN
R3
1.5 kN
R4
2.7 kN
Transcribed Image Text:R1 2.7 kN C2 0.047 µF 0.047 µF OV out R2 2.7 kN R3 1.5 kN R4 2.7 kN
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