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ASK demodulator_envelope detector

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anoopskondattu

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Sir,

I would like to design an ASK demodulator circuit, for which I use an ENVELOPE DETECTOR (or a diode detector) as a part of my project.

I want to know the following:

1) From where should I start the design. I mean how to choose the R and C values.
2) How can I feed an ASK modulated signal as input in NGSPICE.

Please don't ignore

Thank you,
Anoop S
 

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