Initial Configuration; Setting The Dac Output - Analog Devices EVAL-AD5423SDZ User Manual

EVAL-AD5423SDZ Evaluation Board User Guide UG-1554
Figure 8. AD5423 Memory Map in the ACE Software

INITIAL CONFIGURATION

An initial configuration wizard is available when the AD5423
plugin opens that allows quick configuration of the AD5423, and
provides configuration for the clock output in the general-purpose
configuration register, the DAC configuration register, and the
DAC input register. Click Apply to initiate the configured settings
in the order of the recommended power-up sequence on the
AD5423 data sheet.

SETTING THE DAC OUTPUT

To configure the DAC output, use the DAC Config Register
pop-up menu (see Figure 9). Click the 16 Bit DAC block in the
block diagram to display the DAC configuration register. Select
the appropriate settings and click Apply Changes. It is
recommended to disable the output until the correct value in
the DAC input register is written to the device.
Figure 9. AD5423 DAC Config Register Pop-Up Menu
To change the DAC voltage or current output level, write the
appropriate hexadecimal code to the DAC input register, and
then click Apply Changes. Click SW LDAC to issue a software
LDAC command, or pull the LDAC pin low to update the DAC
output register with the values in the DAC input register. To
enable the DAC output, select the OUT_EN (Enable VI_OUT)
checkbox, and then click Apply Changes. The programmed
voltage or current is then reflected at the VI pin.
OUT
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