Fractional-N Software Description - Analog Devices EVAL-ADF411xEBZ1 User Manual

UG-161

FRACTIONAL-N SOFTWARE DESCRIPTION

The Fractional-N software is provided on the CD-ROM included
in the evaluation board package.
Installing the Software
To load the software, open the Fractional-N Software folder,
double-click setup.exe, and then follow the on-screen instructions
from the installation wizard. The software is installed into the
default directory C:\Program Files\Analog Devices\ADF_Frac\.
Running the Software
To run the software,
1. Ensure that the evaluation board is turned on and that the
interface cable is connected.
2. From the C:\Program Files\Analog Devices\ADF_Frac\
directory, double-click ADF_Frac_Revx.exe.
Figure 6. Analog Devices Evaluation Software Window
www.BDTIC.com/ADI
Rev. 0 | Page 6 of 12
Evaluation Board User Guide
3. A dialog box appears asking which device is to be evaluated.
Select the appropriate device, and click OK. The Analog
Devices Evaluation Software window appears (see Figure 6).
4. Click RF VCO Output Frequency, and the Output
Frequency window appears. Type the RF output frequency,
PFD frequency, reference frequency, and channel spacing
into the appropriate boxes, and click Update RO and R1
and then Exit.
5. Click RF Charge Pump Current Setting, and the Current
Setting window appears. Set the charge pump current setting
to the value used for the loop filter, and click OK.
6. Click RF PD Polarity to set the RF PD polarity bit.
7. Click Update all RF Registers.
The data is then set up, and other features can be examined.