Evaluation Board Software; Main Controls - Analog Devices ADF4355-2SD1Z User Manual

UG-804

EVALUATION BOARD SOFTWARE

MAIN CONTROLS

The Main Controls tab (see Figure 5) selects the RF and user
configurable register settings. Consult the register descriptions
of the ADF4355-2 data sheet for details. Default settings are
recommended for most registers.
In the RF Settings, ensure that VCOout(MHz) equals the
VCO frequency. Set the Output divider to give the required
RFoutA± (MHz).
Figure 5. Software Front Panel Display—Main Controls
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EV-ADF4355-2SD1Z User Guide
Ensure that Reference freq equals the applied reference signal.
The PFD frequency is calculated from the reference frequency,
the R counter, the reference doubler, and the reference divide
by 2. Ensure that the value in PFD (MHz) matches the value
specified in the loop filter design.
In Register 4, program the CP current to match the value used
for the loop filter design.