D/A Convert Signal - Measurement Computing PCI-DAS6013 User Manual

PCI-DAS6013 and PCI-DAS6014 User's Guide
Rising Edge Polarity
Falling Edge Polarity

D/A CONVERT signal

The D/A CONVERT signal causes a single output update on the D/A converters. You
can program any AUXIN pin to accept the D/A CONVERT signal. It is also available as
an output on any AUXOUT pin.
The D/A CONVERT input signal polarity is software selectable. DAC outputs update
within 100ns of the selected edge. The D/A CONVERT pulses should be no less than
100 µs apart.
When used as an output, the D/A CONVERT signal may be used to monitor the pacing
of the output updates. The output has a pulse width of 225 ns with selectable polarity.
Figure 4-17
CONVERT signal.
Figure 4-15. D/A START TRIGGER Input Signal Timing
Figure 4-16. D/A START TRIGGER Output Signal Timing
and Figure 4-18 show the input and output timing requirements for the D/A
t
w
t = 37.5 ns minimum
w
t
w
t = 50 ns
w
4-11
Functional Details