mutant_aliem
New Member
I was wondering if anybody knows of a simple way to perform frequency modulation on a low frequency (around 1Hz) AC signal using discrete components (BJT's, Op-amps etc). I have no idea how possible this is as I can't find any schematics.
If this isn't possible, are there any (cheap - only a few dollars) IC's that will do this? I have been told that the MC1496P chip can be used for freq. mod., but from it's datasheet, I can only see that it has a frequency doubling 'function,' which doesn't really look suitable (I want the 1Hz signal modulated to around 20kHz or higher).
Thanks.
If this isn't possible, are there any (cheap - only a few dollars) IC's that will do this? I have been told that the MC1496P chip can be used for freq. mod., but from it's datasheet, I can only see that it has a frequency doubling 'function,' which doesn't really look suitable (I want the 1Hz signal modulated to around 20kHz or higher).
Thanks.