Texas Instruments DAC8881, User Manual, Page: 19 / 25

Using the DAC8881EVM with DXP
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CAUTION
When using external power supplies applied to J14 on the MMB0, please
ensure all shorting blocks from J13 are completely removed. Permanent
damage to the MMB0 may occur otherwise.
From left to right, the J14 screw terminal connections are –VA, +VA, +5VA, –5VA, +5VD and GND. The
DAC8881 board has power requirements as described in section 1.2 of this manual. The analog power for
Vss (–VA) and Vcc (+VA) as well as +5VA may be applied directly to the screw terminals at J14 on the
MMB0 (referenced to the GND terminal).
Connect the MMB0 power supply to DC IN connector (J2) on the MMB0. Connect all other analog
supplies as necessary to J14 on the MMB0.
4.3 Software – Running DXP
Install DXP on a laptop or personal computer running Windows XP as per the detailed instruction in the
DXP Users Guide (TI Document
SBAU146 ). Run the DXP program by clicking on the DXP icon on your
desktop, or by browsing to your installation directory.
Before you can generate signals with DXP, a DAC EVM configuration file must be loaded. To load a
configuration file, select the desired DAC from the configuration list under the DAC menu. Choose the
DAC configuration file for the DAC8881 EVM as shown in
Figure 12 .
Figure 12. Loading the DAC8881EVM INI file
18 DAC8881 Evaluation Module SLAU257A – September 2008 – Revised November 2009
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