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Direct down-conversion mixer & AM demodulation.

时间:04-05 整理:3721RD 点击:
Hi
I have a question about direct down-conversion mixer

Right now i have a RF AM signal like this.
attachment1 ook
It has it's carrier freq & signal freq

we know that we can generate the above waveform by using a single mixer
attachment2 mixer

My question is ,can we demodulate this AM signal by a using a Direct down-conversion mixer which use the same mixer structure ?
attachment mixer2

sorry for my poor expression and thank you for your help

No, you cannot demodulate an ASK signal using a down-conversion mixer.
The simplest demodulator is to use an envelope detector (diode) and a comparator.

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