AM Demodulator - Electronic Circuits Projects Diagrams Free

davemcarr · 31st July 2003, 01:43 PM

Hi everyone

I have just arrived here - it's nice here!

I was wondering if anyone could help me in finding a cheap AM Demodulator IC which can operate down to DC frequency (the modulating wave). I want to measure the envelope of a sound wave which may be the same intensity for several minutes at a time. Also if I can use it single-sided that would help too.

I've tried making my own envelope detector circuit which sort of works, but not very well.

Thanks to anyone who can shed some light 8)

Dave

**kinjalgp** · 31st July 2003, 08:47 PM

One AM IC that I know is ZN414. Here is the datasheet: http://www1.jaycar.com.au/images_uploaded/ZN414484.PDF

**kinjalgp** · 31st July 2003, 08:50 PM

Ok I found equivalent of ZN414. It is MK84. Datasheet:
http://www.mailtronics.co.nz/DataSheets/MK484.pdf

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31st July 2003, 01:43 PM	(permalink)
davemcarr	AM Demodulator Hi everyone I have just arrived here - it's nice here! I was wondering if anyone could help me in finding a cheap AM Demodulator IC which can operate down to DC frequency (the modulating wave). I want to measure the envelope of a sound wave which may be the same intensity for several minutes at a time. Also if I can use it single-sided that would help too. I've tried making my own envelope detector circuit which sort of works, but not very well. Thanks to anyone who can shed some light 8) Dave

31st July 2003, 08:47 PM	(permalink)
kinjalgp	One AM IC that I know is ZN414. Here is the datasheet: http://www1.jaycar.com.au/images_uploaded/ZN414484.PDF __________________ "There is no way to peace, peace is the way!"

31st July 2003, 08:50 PM	(permalink)
kinjalgp	Ok I found equivalent of ZN414. It is MK84. Datasheet: http://www.mailtronics.co.nz/DataSheets/MK484.pdf __________________ "There is no way to peace, peace is the way!"