Datasheet

EV-ADF411XSD1Z User Guide UG-161
Rev. A | Page 17 of 28
The Main Controls tab controls the PLL settings (see Figure 34).
Use the Reference Frequency text box to set the correct refer-
ence frequency and the reference frequency divider. The default
reference frequency in this box is 25 MHz (change this value to
10 MHz if using the supplied on-board TCXO).
Use the RF Settings section to control the output frequency.
You can type the desired output frequency in the RF VCO
Output Frequency text box (in megahertz).
In the Registers tab, you can manually input the desired value
to be written to the registers.
In the Sweep and Hop tab, you can make the device sweep a
range of frequencies or hop between two set frequencies.
In the Latches/Registers section at the bottom of the Main
Controls tab of the main window, the values to be written to
each register are displayed. If the background on the text box is
green, the value displayed is different from the value actually on
the device. Click Write Rx (where x = 0 to 3) to write the value
displayed to the device.
Figure 34. Frac-N PLL Software, Main Window—Main Controls
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