Communication library, for use with Analog Devices' ADF4107 PLL chip. Designed for interfacing between ADF4107 and Arduino Due. Other Arduino versions might work, but milage may vary.

In your Arduino Sketch, make sure to do something like:

#include <SPI.h>
#include <ADF4107.h>


ADF4107 DPLL(COM_PIN);


void setup(){
    SPI.begin();
    SPI.setClockDivider(6);
    SPI.setDataMode(SPI_MODE0); // this might be unnecessary - must check default!
    
    
    DPLL.initialize(P_VAL, B_VAL, A_VAL, R_VAL);
    // or use  ADF4107::initialize(int P, int B, int A, int R, int pol)
}

ADF4107::initialize(int P, int B, int A, int R)

This function initializes the ADF4107 after initial power-up.

• P: prescalar value; can be 8, 16, 32, or 64.
• B: B counter; accepts integer 3-8191 (13 bit). B cannot take values 0, 1, or 2.
• A: A counter; accepts integer 0-63 (6 bit).
• R: Reference divider; accepts integer 1-16383 (14 bit).

The final PLL frequency relationship is RF_FREQ = [(P*B+A)/R]*REF_FREQ.

If you want to specify a polarity for the PLL, add it as the final flag, eg, ADF4107::initialize(int P, int B, int A, int R, int pol) where pol is either 0 or 1. You can also specify what you want to be sent to the mux pin by adding a further flag i.e. ADF4107::initialize(int P, int B, int A, int R, int pol, int mux) where mux may take values from 0 to 7 corresponding to:

• 0 - Three state output
• 1 - Digital lock detect (output high)
• 2 - N divider output
• 3 - DV_{DD}
• 4 - R divider output
• 5 - N channel open-drain lock detect
• 6 - Serial data output
• 7 - DGND

Enjoy!