National Instruments NI PXI-5621 用户手册

© National Instruments Corporation

Figure 1.  Noise Density (Dither Disabled, Input Terminated)

Average noise density
(dither off) .............................................. <–129 dBm/Hz

Signal-to-noise ratio

9 dBm signal, full bandwidth.......... >62 dB

Harmonic distortion (single tone, 0 dBm signal; 
includes aliased harmonic distortion)

4–15 MHz, dither enabled .............. <–77 dBm

0–32 MHz, dither disabled.............. <–71 dBm

–80.00

–90.00

–100.00

–120.00

–130.00

–140.00

0.0

5.0M

20.0M

25.0M

32.0M

Frequency (Hz)

Typical Results

Amplitude (dBm)

15.0M

10.0M

–110.00

–70.00