Datasheet

*1 RM
CLRWR
A
*
*
3DB
RBW 100 kHz
VBW 1 MHz
SWT 1 s * Att 20 dB * Ref 10 dBm
Center 885 MHz Span 100 MHz10 MHz/
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
Date: 17.OCT.2012 09:27:03
www.ti.com Basic Test Procedure with TSW1400
3.4 DAC31x4 Software Quick-Start Guide
• Provide the clock input 491.52 MHz at 1.5 Vrms at J9 SMA connector of the DAC31x4 EVM
• Provide the LO source of 885 MHz (12-dBm max) at either J13 SMA connector of the DAC31x4 EVM
• Turn on the power to the board and press the reset button on the EVM
• Press the Reset USB Port button in the GUI and verify the USB communication
• Switch to the INPUT tab of the GUI
• Click LOAD REGS, browse to the installation folder and load example file dac3174_reg.txt. This file
contains settings for DAC3174 running at 491.52 MSPS. 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 two RF outputs of the DAC EVM (J15).
Figure 8. Captured Two-Tone from Spectrum Analyzer
Figure 8 shows a captured two-tone from spectrum analyzer as illustrated configuration of TSW1400 GUI,
High Speed Data Converter Pro, in Figure 7. This two-tone is centered at 885 MHz as providing 885 MHz
of external LO from the signal generator.
9
SLAU466A–November 2012–Revised June 2013 DAC31x4 EVM User's Guide
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