YO4HFU
LMX2330 Prescaler (Divider)


510MHz divider with 100/1000

2500MHz divider with 1000

 

 

For testing and registry calculation, I used Code Loader 4 from National Semiconductor.

Calculated values of the registers must be inserted into the source program written for PIC16F628A. Then the source code is compiled with MPLAB.

For high values of counter, the output signal is very narrow. RF Counter can theoretically divide between 96...65631 (P=32).

Not all values gave good results.
Example: N = 200 (P= 32) , Freq. = 400 MHz
; Frequency counter display 2,020202MHz. I don't know what is the problem, possible shape of the output signal...

 

 


Schematic Diagram
PCB + Layout
File
Source Code PIC16F628

HEX File for PIC16F628:
IF Prescaler - ratio = 100
IF Prescaler - ratio = 1000
RF Prescaler - ratio = 1000

How to calculate value of registers with Code Loader 4
For more info please read: LMX2324 Tutorial MPLAB

 

 

 

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