©
National Instruments Corp.
11
NI 9229E/9239E
to control sampling, all of the modules must share a single master
timebase source. Refer to the software help for information about
configuring the master timebase source for the NI 9229E/9239E.
Visit
ni.com/info
and enter
cseriesdoc
for information about
C Series documentation.
The following equation provides the available data rates of the
NI 9229E/9239E:
f
s
=
where
n
is any integer from 1 to 31.
However, the data rate must remain within the appropriate data rate
range. Refer to the
Specifications
section for more information
about the data rate range. When using the internal master timebase
of 12.8 MHz, the result is data rates of 50 kS/s, 25 kS/s, 16.67 kS/s,
and so on down to 1.613 kS/s, depending on the value of
n
. When
using an external timebase with a frequency other than 12.8 MHz,
the NI 9229E/9239E has a different set of data rates.
f
M
256
÷
n
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