Datasheet

Evaluation Board User Guide UG-160
Rev. B | Page 3 of 16
QUICK START GUIDE
Use the following steps to evaluate the ADF4108 device:
1. Install the Int-N software (see the UG-476 user guide, PLL
Software Installation Guide).
2. Follow the hardware driver installation procedure.
3. Connect the power supplies to the EV-ADF4108EB1Z:
a. Connect the 5.5 V power supply to the on-board
banana connectors.
b. Connect the 15 V power supply to the test points
labeled +15 V and AGND1.
4. Connect the USB cable to the PC and to the
EV-ADF4108EB1Z.
5. Run the Int-N software.
6. Select the ADF4108 device and the USB board in the
Select Device and Connection tab of the main window.
7. Ensure that Analog Devices RFG.L Eval Board connected
is displayed at the bottom left of the main window.
8. Connect the reference frequency to REFIN (SMA).
9. Click the Main Controls tab to input the RF and other
settings.
10. Note that the Phase Detector Polarity drop-down box in
the Settings section should be set to Negative to suit the
active loop filter in inverting mode.
11. Update all registers.
12. Connect the output to a signal source analyzer. The board
offers two outputs.
a. VCO/2 via the SMA labeled VCO/2.
b. VCO via the SMA labeled EXT_VCOOUT.
13. Measure the results.