Digitally Tuned FM Reciever

[nford]

I am interested in controlling a FM radio receiver using a microcontroller.

Does anyone know of a design to use as a reference for building a FM radio, which is tuned using digital signals?

 

[budhy]

FM Radio Module normally has a voltage input feed to a varactor for frequency tuning purpose.
On Digitally controlled FM receiver, use DAC (Digiltal Analog Converter) to control the varactor when selecting frequency.

 

[Giuss]

The best solution is to use a PLL circuit connected to the microcontroller

 

[stroma]

hi nford,

https://www.silabs.com/tgwWebApp/public/web_content/products/Broadcast/Radio_Tuners/en/Si4700-01.htm
you can check tea5768 and tea5764 from nxp /philips/

best regards,
stroma