Figure 10-4. filter example – National Instruments NI 6232 User Manual
Page 133
Chapter 10
Digital Routing and Clock Generation
10-10
ni.com
Figure 10-4. Filter Example
Enabling filters introduces jitter on the input signal. For the 125 ns and
6.425 µs filter settings, the jitter is up to 25 ns. On the 2.55 ms setting, the
jitter is up to 10.025 µs.
When a PFI input is routed directly to RTSI, or a RTSI input is routed
directly to PFI, the M Series device does not use the filtered version of the
input signal.
Refer to the KnowledgeBase document, Digital Filtering with M Series
and CompactDAQ, for more information about digital filters and counters.
To access this KnowledgeBase, go to
ni.com/info
and enter the info
code
rddfms
.
1
2
3
1
4
1
2
3
4
5
RTSI, PFI, or
PXI_STAR Terminal
Filter Clock
(40 MHz)
Filtered Input
Filtered input goes high
when terminal is sampled
high on five consecutive
filter clocks.