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I am trying to build a fm modulation circuit in proteus. Using the circuit suggested in the book 'operational Amplifier design and Application' by Burr Brown staffs. I have attached the schematic from the book. What is this '4118/15 sin/cos module' used in this schematic? I cannot find this...
I want to show frequency spectrum of an fm signal using fourier analysis graph. The carrier frequency is around 90 Mega. I selected max frequency =100 mega and that did not work. In case my circuit had a problem, I used (a signal generator +resistor)with 10 mega Hz sine wave just to verify. It...
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