http://www.analog.com/en/products/rf-microwave/iq-modulators-demodulators/iq-modulators/adrf6755.html#product-overview

1: Run and install "SDPDriversNET.exe"
2: Run "setup.exe" in the folder: ADRF6755_USB_v1.1_Installer\Volume
3: Refer to "ADRF6755_SPI_Interface_User_Guide_USB_Rev1.pdf" for instructions on software setup.
4: If you still have issues you can make a post on our support forum: https://ez.analog.com/community/rf
	Include "ADRF6755" in your title to ensure a quick response