Hi All -

I have no idea where to begin with this, since phase-locked loops still exceed my grasp, to some extent.
I feel like it must be possible to build something that can receive FM radio signals, though. The 74HC4046 goes up to 18mhz, which is still too low to receive most signals - so:
Does anyone have suggestions for a different PLL chip that could handle this? Or a schematic that demonstrates how it would be achieved?

I would appreciate it.

Thank you,
Barry

 

http://electronics-diy.com/single-chip-fm-receiver-tda7012.php

https://www.nxp.com/products/media-...hly-efficient-low-if-radio-one-chip:TEF6640HW

http://www.jfd-ic.com/Documents/AR1019.pdf

Regards, Dana.

 

We achieve it by using an intermediate frequency. We beat or mix the desired frequency.....down to a lower frequency........then we demodulate or decode the signal.

Google am and fm radio schematics......look at the IF stages.

Study superheterodyne receivers.

We superheterodyne the signal.

 

Is there a way to do that, using a 4046 as the carrier, though?

To be a little more explicit about my question: I'm wondering specifically about the potential for a phase-locked loop IC, in this particular project. I haven't found any schematics that use it quite for this purpose - though I have seen a video where someone is able to transmit a lower-frequency, lower-fidelity audio signal between two 4046s.

 

Is there a way to do that, using a 4046 as the carrier, though?

Not capable of FM, unless you mix up the 4046 output.

Regards, Dana.

 

Mix up how?

 

Google "basic signal mixers", lots of ap notes, hits on RF
mixers.

Regards, Dana.