Texas Instruments DAC8411EVM-PDK - DAC8411 Performance Demonstration Kit DAC8411EVM-PDK DAC8411EVM-PDK 데이터 시트
제품 코드
DAC8411EVM-PDK
Using the SC70 DAC EVM With DXP
www.ti.com
6.2
MMB0 Power Supplies
Several power connections are required for the hardware to work properly. For the MMB0, the supplied
6-V AC/DC converter is all that is necessary. Ensure that J12 on the MMB0 board is closed before
connecting the AC/DC adapter to the DC In connector of the MMB0. This supply provides all power to the
digital portion of the SC70 DAC EVM as well as all necessary power for the DSP. Clean, well-regulated
analog power for the SC70 DAC EVM must be supplied externally via J14 – a 6-position screw terminal
mounted in the lower left corner of the MMB0 board.
6-V AC/DC converter is all that is necessary. Ensure that J12 on the MMB0 board is closed before
connecting the AC/DC adapter to the DC In connector of the MMB0. This supply provides all power to the
digital portion of the SC70 DAC EVM as well as all necessary power for the DSP. Clean, well-regulated
analog power for the SC70 DAC EVM must be supplied externally via J14 – a 6-position screw terminal
mounted in the lower left corner of the MMB0 board.
CAUTION
When using external power supplies applied to J14 on the MMB0, ensure that
all shorting blocks from J13 are completely removed. Permanent damage to the
MMB0 may occur otherwise.
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
SC70 DAC board has power requirements as described in
SC70 DAC board has power requirements as described in
. The analog +5VA may be applied
directly to the screw terminals at J14 on the MMB0 (referenced to the GND terminal).
For convenience to the SC70 DAC EVM user, the +5VA required for the analog power to the EVM may be
provided through the MMB0. This can be accomplished by placing a shunt jumper on J13B (+5 to +5VA),
which connects the digital 5-V supply to the analog supply input. Due to switching noise, overall
performance of the device installed on the EVM may be compromised.
provided through the MMB0. This can be accomplished by placing a shunt jumper on J13B (+5 to +5VA),
which connects the digital 5-V supply to the analog supply input. Due to switching noise, overall
performance of the device installed on the EVM may be compromised.
6.3
Software – Running DXP
Install DXP on a laptop or personal computer running Windows XP as per the detailed instruction in the
DXP User's Guide (
DXP User's Guide (
). 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 device installed on the EVM as shown in
configuration file, select the desired DAC from the configuration list under the DAC menu. Choose the
DAC configuration file for the device installed on the EVM as shown in
6
SC70 DAC EVM
SLAU299 – November 2009
Copyright © 2009, Texas Instruments Incorporated