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Optional Configuration
Figure 11. Locations of DAC348x to Transformer Output Jumper Locations
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Provide the clock input 1228.8 MHz at 1.5Vrms at J9 SMA connector of the DAC3484 EVM
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Turn on power to the board and press the reset button on the EVM
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Press the “Reset USB Port” button in GUI and verify USB communication.
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Switch to the INPUT tab of GUI
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Click “LOAD REGS”, browse to the installation folder and load example file
DAC3484_FDAC_1228p8MHz_4xint_NCO_30MHz_QMCon.txt. This file contains settings for 4x
interpolation with the DAC3484 running at 1228.8MSPS. Load this file and wait a couple of seconds for
the settings to go into effect.
•
Verify the spectrum using the Spectrum Analyzer at the four DAC outputs of the DAC EVM (J7, J6, J3,
and J2).
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(Toggle the SIF SYNC button to sync the appropriate digital blocks, if example file with NCO
setting is used)
13
SLAU336 – March 2011
DAC3484/DAC3482 EVM
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