A 10-kHz AM broadcast signal covering 895-905 kHz radio frequency (RF) range is to be down-converted to an intermediate frequency (IF) range of 395-405 kHz where main amplification takes place in AM receivers. (Further down-converting to audio frequencies follows this IF amplification step) (a) Find the mixing frequency (the frequency of the sine wave used to mix), and (b) Specify the frequency range of the passband of the filter following the mixer needed to achieve the down-converting objective.

Answer rating: 100% (QA)

To downconvert the 10kHz AM broadcast signal from the 895905 kHz radio frequency RF range to an inte... View the full answer