EVAL-AD5317RDBZ User Guide
UG-970
Rev. A | Page 5 of 13
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Figure 4.
AD5317R Evaluation Software
Main Window
SOFTWARE OPERATION
The software for the
allows the user to program values
to the input and DAC registers of each DAC individually or
collectively.
Write to Input Register
Click
Write to Input Register
to load the code of the input data
control to the input register of selected DAC in the DAC
selection box.
Update DAC Register from Input Register
Click
Update DAC Register from Input Register
to copy the
value in the input register to the corresponding DAC register. The
DAC outputs are automatically updated with the appropriate
voltage. The
LDAC MASK
setting is ignored.
Write to DAC Register
Click
Write to Input and DAC Register
to load the code of the
input data control to the input register and the DAC register of
the selected DAC. The DAC outputs are automatically updated
with the appropriate voltage. The
LDAC MASK
setting is ignored.
LDAC Control
Click
Pulse LDAC
to bring the LDAC pin low and then back
high. Doing this copies the data from the input registers to the
DAC registers, and the outputs update accordingly. Any DAC
updates disabled by the
LDAC MASK
settings are ignored.
Alternatively, the LDAC pin can be set to logic high or logic low
by clicking the corresponding
LDAC HIGH
or
LDAC LOW
option.
Power-Down Control
Each of the DACs can be powered down individually. Each of the
DACs has an associated selection box allowing the selected DAC to
operate in normal mode or power-down mode. Click the blue
progressive disclosure option on the
POWER-DOWN LOGIC
block to access the
Powerdown Configuration
window, as shown
in Figure 5. When the power-down settings for the DAC are
selected, click
OK
to write the appropriate values to the
The
POWER DOWN
indicator lights up accordingly when a
DAC is powered down.
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Figure 5.
Powerdown Configuration
Window
