Evaluation Board User Guide UG-109
Rev. 0 | Page 5 of 12
EVALUATION BOARD SOFTWARE
The Outputs section controls the charge pump current setting,
the output power setting, and the multiplexer output setting.
The control software for the EVAL-ADF4350 accompanies the
EVAL-ADF4350EB1Z on a CD. To install the software, use the
following steps:
Use the Output Frequency section to control the output
frequency. You may specify two frequencies, and select which
one the device operates at. For some frequencies, the device can
operate in two modes: the low end of the VCO band or the high
end plus an extra divide by two. To control which mode is used,
select Minimum Output Divider in the Options section.
1. Click setup.exe.
2. The install wizard guides you through the installation
process. The software is installed in a default directory
called C:/Program Files/Analog Devices/ADF4350.
3. To run the software, click the .exe file.
The device can be set to toggle between the two set frequencies
by selecting Alternate in the Dynamic section. The time spent
on each frequency is set in the Approximate Delay field. To
stop, click Stop. There is also a possibility to sweep from f1 to
f2 with the channel spacing resolution with approximate delay
time spent on each frequency.
The main interface window appears (see Figure 4). Confirm
that USB OK is displayed on the right side of the screen. Other-
wise, the software has no connection to the evaluation board.
It is also possible to disconnect the USB by clicking the
Disconnect USB button. Should this happen, no data is sent
to the part. This function is to be used before disconnecting
the board from the USB connection. When the board is
connected again, click the USB connect button to enable the
programming of the part. This ensures the PC does not freeze
up when the USB cable is disconnected.
It is also possible to select Low Spur Mode or Low Noise Mode
for the frac-N mode in the Options section. Here you can also
set the cycle slip reduction bit.
The Settings section displays selected settings. Click Registers to
display every bit of the register settings. To download these to
the device, click Update ALL.
Use the Reference section to set correct reference frequency
and reference frequency divider. The reference TCXO on the
evaluation board runs at 25 MHz. To force the device to operate
in integer-N mode, set the R divider so that the PFD frequency
(displayed in the Settings section) equals the channel spacing
(set in the Output Frequency section) and select the Integer-N
when possible check box (in the Options section).
08907-004
Figure 4. Software Front Panel
