Справочник Пользователя для National Instruments NI 5412

© National Instruments Corporation

Average Noise 
Density

Path

Amplitude 

Range

Average Noise Density

Average Noise 
Density at small 
amplitudes is 
limited by a 
–148 dBm/Hz 
noise floor.

V

pk-pk

dBm

dBm/Hz

dBFS/

Hz

Low-Gain

2

10

45

–134

–144

High-
Gain

12

25.6

251

–119

–145

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 

section for more 
information 
about Internal 
Clock Sources.

Table 1.  (Continued)

nV

Hz

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