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Appendix A Specifications
NI 5620 User Manual A-2 ni.com
VSWR
0.1 to 25 MHz..................................< 1.5:1
25 to 32 MHz...................................< 3:1
Dither (can be disabled)
Frequency range ..............................15 kHz to 3 MHz
Frequency
Internal Sample Clock
Frequency........................................64 MHz / n, where 1 ≤ n ≤ 2
32
Accuracy..........................................< ±12 ppm (after calibration)
Noise sidebands
Residual FM ...........................................< 2 Hz
pk–pk
in 10 ms
Amplitude
Average noise density............................. –134 dBm/Hz
Spurious responses (0 dBm signal)
5 to 25 MHz, dither enabled............< –80 dBc
0.1to32MHz,ditherdisabled........–80 dBc
Residual responses (input terminated)....< –85 dBm
Frequency response (5 to 25 MHz)
Relative (to response at 15 MHz)....Less than ±0.25 dB
Absolute...........................................Less than ±0.5 dB
Absolute, using calibration table.....Less than ±0.1 dB
Absolute (0.1 to 32 MHz)................±2.5 dB
Relative
(0.1 to 32 MHz, to 15 MHz)............±1.5 dB
Offset Density
100 Hz < –100 dBc/Hz
1kHz < –120 dBc/Hz
10 kHz < –130 dBc/Hz
100 kHz < –130 dBc/Hz