Hi All,
To control a RF transmitter, I have to set its synthesizer paramter N:
N = (fTX + foffset) / Xclk
we know foffset and Xclk, it is easy to get N when I set any fTX.
but the problem is, there is a register called:
Local oscillator frequency extension.
It has 2 bits for different range frequency.
Why do I need this?
If chip already know my target frequency, why should I tell him another information...
the point is, I still don't know what is this register for ..
For synthesizer, I have N... so what is that for ....
Best regards, Boki.