© National Instruments Corporation 7 NI 5412 Specifications
Sample Clock
Spectral Characteristics (Continued)
Average Noise
Density
Path
Amplitude
Range Average Noise Density
Average Noise
Density at small
amplitudes is
limited by a
–148 dBm/Hz
noise floor.
Vpk-pk dBm dBm/Hz
dBFS/
Hz
Low-Gain 210 45 –134 –144
High-
Gain
12 25.6 251 –119 –145
Table 2.
Specification Valu e Comments
Sources 1. Internal, Divide-by-N (N ≥ 1)
2. Internal, DDS-based, High-Resolution
3. External, CLK IN (SMB front panel connector)
4. NI PXI-5412: External, PXI Star trigger
(backplane connector)
5. NI PXI-5412: External, PXI_Trig<0..7>
(backplane connector)
NI PCI-5412: External, RTSI<0..7>
Refer to the
Onboard Clock
section for more
information
about Internal
Clock Sources.
Table 1. (Continued)
Specification Valu e Comments
nV
Hz
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