R
RealInfo
- Jan 1, 1970
- 0
Hi all
My question is about the structure of a digitally controlled radio like this
http://www.hamradio.com/detail.cfm?pid=H0-010818
From the point of view of the micro controller that controls it .
If I understand well that micro does 3 main things
1> controls the frequency of the PLL that functions as a local oscillator
used by the rf mixer
2> sends the relevant data to the LCD .
3> respnds ti the buttons .
I want to concentrate on the first two .
How the micro controls the PLL so it will produce the exact frequency
that the LCD displays.
And how the micro translates the frequency knob to a chosen frequency .
Thanks
Elico
My question is about the structure of a digitally controlled radio like this
http://www.hamradio.com/detail.cfm?pid=H0-010818
From the point of view of the micro controller that controls it .
If I understand well that micro does 3 main things
1> controls the frequency of the PLL that functions as a local oscillator
used by the rf mixer
2> sends the relevant data to the LCD .
3> respnds ti the buttons .
I want to concentrate on the first two .
How the micro controls the PLL so it will produce the exact frequency
that the LCD displays.
And how the micro translates the frequency knob to a chosen frequency .
Thanks
Elico