I revisited the concept of demodulation of an AM signal.
Isn't the output of the 455 KHz IF filter, similar to a sampled signal as I could get from a DAC process?
If so (in the hope of not being wrong assuming the above) could I obtain the baseband just by using an active filter implemented with opamps of suitable GBW, surely very expensive/hard to find?
What are the flaws of my reasoning?
Isn't the output of the 455 KHz IF filter, similar to a sampled signal as I could get from a DAC process?
If so (in the hope of not being wrong assuming the above) could I obtain the baseband just by using an active filter implemented with opamps of suitable GBW, surely very expensive/hard to find?
What are the flaws of my reasoning?