National Instruments NI 9234, Руководство по эксплуатации, Страница: 16 / 36

NI 9234 Operating Instructions and Specifications 16 ni.com
Understanding NI 9234 Data Rates
The freq u ency of a master timebase ( f
M
) controls the data rate ( f
s
)
of the NI 9234. The NI 9234 incl u des an internal master timebase
with a freq u ency of 13.1072 MHz, b u t the mod u le also can accept
an external master timebase or export its own master timebase. To
synchronize the data rate of an NI 9234 with other mod
u les that u se
master timebases to control sampling, all of the mod u les m u st
share a single master timebase so u rce. Refer to the software help
for information abo u t config u ring the master timebase so u rce for
the NI 9234. Visit
ni.com/info
and enter
c s erie s doc
for
information abo u t C Series doc u mentation.
The following eq u ation provides the available data rates of the
NI 9234:
f
s
=
where n is any integer from 1 to 31.
However, the data rate m u st remain within the appropriate data rate
range. Refer to the Specifications section for more information
abo u t the data rate range. When u sing the internal master timebase
f
M
256 ÷
n
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