As the crowning touch to my home-built MP3-server, I'd like to broadcast the output from the soundcard and be able to listen to it from the various stereo's, boom-boxes, etc around my house. I've ...

These are fed to the PLL and attenuator in turn for FM and AM modulation, and the result is SSB. It’s only suitable for narrow bandwidths, but it’s a novel and surprisingly simple deign.

FM Modulation Methods. Frequency modulation has been around for over 80 years thanks to inventor and EE Edwin Armstrong. ... When demodulating FM, you just need a PLL with no feedback divider.

I see what he is doing here as FM modulation which is a form of phase modulation. Report comment. Reply. Ostracus says: ... He is calling it a PLL, but he is just using some DDS IP as an NCO.

The RFMD Polaris 2 Total Radio chipset is made up of the RF2723 quad band RF receiver, the RF6007 fractional-N PLL, modulator, digital signal processor and PA ramp controller, and their RF3186 PA.