www.ti.com
Testing and Configuration
2.4
DAC31x2EVM Configuration for Modulator Output
Follow these steps to set up the DAC31x2EVM and perform a spectrum analysis.
Step 1.
Set the clock input to 491.52 MHz at 0.5 V
RMS
at the J9 SMA connector of the DAC31x2EVM.
Step 2.
Supply the LO source of 900 MHz (7 dBm) at the J10 SMA connector of the DAC31x2EVM.
Step 3.
Turn on power to the board at J12/J13.
Step 4.
Verify the spectrum using the Spectrum Analyzer at the RF output of the DAC31x2EVM
(J11).
A typical WCDMA output from a wave analyzer is shown in
Figure 4
.
Figure 4. DAC3162EVM and TRF3703-33 WCDMA Output
5
SBOU096A – November 2010 – Revised January 2011
DAC31x2EVM
Submit Documentation Feedback
© 2010–2011, Texas Instruments Incorporated