Revision History
12
SLAU485A – January 2013 – Revised April 2016
Copyright © 2013–2016, Texas Instruments Incorporated
Revision History
3.
Select
Single Tone
FFT Test under
Test Selection
4. Select the number of sample points (and resulting number of FFT bins). The example shown in
has 65536 samples.
5. Enter the ADS4449 sampling rate. The example shown in
has the sample rate set at 245.76
MSPS.
6. Enter the input frequency desired. If the clock and input frequency signal generators are synchronized,
then make sure the checkbox for coherent frequency is checked and set the input frequency signal
generator to the input frequency displayed. The example shown in
has the input frequency
set at 170 MHz.
7. For this example, High Frequency Mode is selected under the ADS4449 GUI special mode tab.
8. Select channel A, B, C, or D depending on which channel is connected to the signal generator.
9. Press the
Capture
button on the High Speed Data Converter Pro GUI.
Observe an FFT result similar to that of
Figure 11. ADS4449 14-bit Operating Mode, Single Tone Test Result: Fs = 245.76 MSPS, Fin = 170 MHz
Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (January 2013) to A Revision
....................................................................................................
Page
•
Changed wording regarding power supply following the
Simplified ADS4449 EVM Block Diagram
image.
..................
•
Changed description on the J2 row of the
ADS4449 EVM Connectors
table.
....................................................
