Evaluation Board User Guide
UG-171
Rev. A | Page 5 of 8
EVALUATION BOARD SOFTWARE
09173-
005
Figure 5. Evaluation Software, Main Window
SOFTWARE INSTALLATION AND SETUP
The evaluation board software is provided on the CD that
accompanies the board. To install the software,
1.
Click the
setup.exe
file.
2.
Follow the on-screen instructions. The software is installed
in a default directory called
C:/Program Files/Analog
Devices/ADF4x5x
.
3.
To run the software, click
ADF_Frac_Rev2_7.exe
.
4.
Before the main window appears (see Figure 5), the device
window opens, prompting you to choose the device to
evaluate.
5.
Select
ADF4156
and click
OK
.
SOFTWARE OPERATION
When the main window (shown in Figure 5) opens, perform
the following tasks:
1.
In the left
RF Section
panel in the window, click
REF IN
Frequency
. When a new window appears, change the
reference frequency to 10 MHz.
2.
Click
Update R0 and R1 (Normal Mode)
and then click
Exit Window
. Note that these fields have been replaced by
the
Rx Updated
fields shown in blue.
3.
Click
Update All Registers
(this has been replaced by
All
RF Registers Updated
in Figure 5). The data is now set up.
The window should look like Figure 5.
Other features can now be examined. For example, to change
the VCO output frequency and/or channel spacing, click
RF
VCO Output Frequency
. The output frequency window then
appears, and the values can be changed. The on-board loop filter
has been designed for a charge pump current of 0.3125 mA.
To examine the cycle slip reduction feature, click the
CSR
Disabled
button in the main window. Note that the PFD duty
cycle must be 50:50, and the charge pump current must be set
to minimum to take advantage of this feature. See the ADF4156
data sheet for more information on cycle slip reduction.
