NI PXI/PCI-5114 Specifications 6 ni.com
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Sample Clock

Specification Value Comments
Sources Internal, Onboard Clock (internal VCXO)*
External, CLK IN (front panel SMB connector)
* Internal Sample
Clock is locked to the
Reference Clock or
derived from the
onboard VCXO
Onboard Clock (Internal VCXO)
Sample Rate
Range
Real-Time Sampling
(Single Shot)
Random Interleaved
Sampling (RIS)
* Divide by n
decimation used
for all rates less than
250 MS/s
For more information
about Sample Clock
and decimation, refer
to the NI High-Speed
Digitizers Help.
3.815kS/s to 250MS/s* 250 MS/s to 5 GS/s in
increments of 250 MS/s
Timebase
Frequency
250MHz When not using
External Sample
Clock
Timebase
Accuracy
Not Phase-Locked to
Reference Clock
Phase-Locked to
Reference Clock
—
±25 ppm Equal to the Reference
Clock accuracy
Sample Clock
Delay Range
±1 Sample Clock period —
Sample Clock
Delay Resolution
≤20 ps —