How to use a Motorola MC145152 to control RX and TX frequency of a 27MHz CB radio?

[fjpompeo]

How do I use a Motorola MC145152 to control RX and TX frequency of a 27MHz CB radio from 26.965MHz up to 27.805MHz or any upper or lower frequency close?

Regards,

Fernando

 

[muralicrl]

pll mc145152

Hi,
See the attachment on the user manual of MC145152

 

[m1cem]

cb pll 02

Hi Fernando,
Looking at the data sheet, it should be as easy as just selecting the correct binary code on the pll ic. I played about with some old ssb sets a few years back, the only problem you may have is getting the rf o/p stage to cover such a wide range.
I used a pic with lookup tables, used i/p from channel select and a switch to select the band and o/p the relevent binary code to the pll.

Regards,
Brian (M1CEM)