# ADF4350
Communication library to interface with Analog Devices ADF4350 PLL IC. Designed
with the ADF4350 evaluation board in mind.
## Getting started
In your Arduino sketch, you'll want to include the SPI library in addition to this code:
#include <SPI.h>
#include <ADF4350.h>
#define COM_PIN 32 // sets pin 32 to be the slave-select pin for PLL
ADF4350 PLL(COM_PIN); // declares object PLL of type ADF4350. Will initialize it below.
void setup(){
SPI.begin(); // for communicating with DDS/PLLs
SPI.setClockDivider(4);
SPI.setDataMode(SPI_MODE0);
delay(500); // give it a sec to warm up
PLL.initialize(400, 10); // initialize the PLL to output 400 Mhz, using an
// onboard reference of 10Mhz
}
## Implemented features
Self-explanatory functions...
* `ADF4350::initialize(int frequency, int refClk)` -- initializes PLL with given frequency (Mhz) and reference clock frequency (also in Mhz).
* `ADF4350::getFreq()` -- returns current frequency
* `ADF4350::setFreq(int freq)` -- sets PLL to output new frequency `freq` (in MHz).
Functions you should use after consulting datasheet:
* `ADF4350::setFeedbackType(bool feedback)` -- fundamental vs. divided feedback
* `ADF4350::powerDown(bool pd)` -- power down the VCO (or not).
* `ADF4350::rfEnable(bool rf)` -- enable/disable output on the main RF output.
* `ADF4350::setRfPower(int pow)` -- `pow` should be 0, 1, 2, or 3, corresponding to -4, -1, 3, or 5 dBm.
* `ADF4350::auxEnable(bool aux)` -- enable/disable output on the auxilary output.
* `ADF4350::setAuxPower(int pow)` -- set auxiliary power output. Again, `pow` should be 0, 1, 2, or 3, corresponding to -4, -1, 3, or 5 dBm.
