Datasheet

A. Arrants 4
10. Start the SPI Controller software. If prompted for a configuration file, select the
AD6641_12Bit_500MSspiR03.cfg file. If not, check the title bar of the window to see which
configuration is loaded. If necessary, choose “Cfg Open” from the “File” menu and select the
above configuration file. Note that the CHIP ID(1) field may be filled whether the correct
SPI Controller configuration file is loaded or not.
Note: SPI Controller can be started from the “Tools” menu in VisualAnalog, but first make
sure that it is installed. Select “External Tools” from the “Tools” menu in VisualAnalog.
If SPI Controller is not shown, click the Add button on the External Tools from the
“Tools” menu in VisualAnalog window. Under “Display Text:” enter “SPI Controller”.
Then, enter the path to the SPI controller executable.
11. Click the New DUT button ( ) in SPI Controller. On the Customer 2 tab, set the
following options: Fill Count = 255, Dump Operation = Master, Readback Mode = SPORT.
12. Return to the VisualAnalog window and click the Run button ( ).
13. Adjust the amplitude of the input signal so that the fundamental is at the desired level.
(Examine the “Fund Power” reading in the left panel of the VisualAnalog FFT window.)
14. If desired, click on File>Save Form as in the FFT window to save the FFT plot.