Hi folks, i need to make an FSK modulator and a demodulator.... i came to know abt this IC called 74HC4046 which has the centre/ free running frequency upto 17MHz which would be great for me....
now i'll start experimenting with the CD4046 first.... see if i could handle it.... if that works for me then i'll go for the 74HC4046 as thats my goal(m nt sure if this is available in my country bt the CD4046 is available and pretty cheap).....
i tried with the CD4046 before bt just on simulation.... i could not get it to work, i tried for abt a week on it.... may be there was some problem with the sim or i dont know..... bt i'll buy a CD4046 tomorrow and do a few experiments with it..... and i'll get back here and post the results....
the very first thing which i'm gonna do is to see i can set the VCO's free running freq.... i've posted the schematic which i'm gonna use.... plz tell me if this is ok or not as i'm kind of a newbie..... and i'm also afraid as i've already struggled with it and couldnt get it to work.... plz help me with this.... its very imp for me that this works.....
now i'll start experimenting with the CD4046 first.... see if i could handle it.... if that works for me then i'll go for the 74HC4046 as thats my goal(m nt sure if this is available in my country bt the CD4046 is available and pretty cheap).....
i tried with the CD4046 before bt just on simulation.... i could not get it to work, i tried for abt a week on it.... may be there was some problem with the sim or i dont know..... bt i'll buy a CD4046 tomorrow and do a few experiments with it..... and i'll get back here and post the results....
the very first thing which i'm gonna do is to see i can set the VCO's free running freq.... i've posted the schematic which i'm gonna use.... plz tell me if this is ok or not as i'm kind of a newbie..... and i'm also afraid as i've already struggled with it and couldnt get it to work.... plz help me with this.... its very imp for me that this works.....
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