RF Input Average Noise Density

Table 289. RF Input Average Noise Density (dBm/Hz)

PXIe-5563
Center Frequency Reference Level Warranted Typical
30 MHz to 1.75 GHz -30 dBm -160 -163
>1.75 GHz to 3 GHz -30 dBm -159 -162
>3 GHz to 12 GHz -30 dBm -155 -159
>12 GHz to 18 GHz -30 dBm -151 -155
>18 GHz to 22 GHz -30 dBm -150 -153
>22 GHz to 25 GHz -30 dBm -148 -152
>25 GHz to 26.5 GHz -30 dBm -147 -151
30 MHz to 1.75 GHz 0 dBm -134 -138
>1.75 GHz to 3 GHz 0 dBm -133 -138
>3 GHz to 22 GHz 0 dBm -133 -137
>22 GHz to 26.5 GHz 0 dBm -131 -136
Noise density improves approximately 4 dB for the 0 dBm reference level when Center Frequency ≥ 3.75 GHz and Signal Bandwidth ≤ Maximum Offset Bandwidth or when offset mode is enabled. Example: 5.25 GHz to 22 GHz frequency range at 0 dBm typical reference level improves from -144 dBm/Hz to -148 dBm/Hz when Signal Bandwidth ≤ 900 MHz.

Conditions:

  • Result is the power spectral density expressed in dBm/Hz.
  • Measured at 20 MHz offset from the center frequency; 10 averages computed from the root-mean-square average of the input signal across a 1 MHz span after spurs are removed and normalized to a 1 Hz noise bandwidth.
  • Input terminated with a 50 Ω load.
Note Signal analyzer specifications are often provided as displayed average noise level (DANL). To convert average noise density to DANL, subtract 2.51 dB. DANL is lower because it is computed using the average of the logarithm of measurement samples, not the logarithm of the average of measurement samples as provided.

RF Input Third-Order Intermodulation

Table 290. RF Input Third-Order Intercept Point (IIP3, dBm)

PXIe-5563
Center Frequency Reference Level Warranted 23 °C ± 5 °C Warranted Typical
30 MHz to 1 GHz -30 dBm -8 -8 -3
>1 GHz to 3 GHz -30 dBm -12 -13 -7
>3 GHz to 8 GHz -30 dBm -18 -18 -12
>8 GHz to 24 GHz -30 dBm -10 -11 -5
>24 GHz to 26.5 GHz -30 dBm -10 -11 -5
30 MHz to 1 GHz 0 dBm 21 20 26
>1 GHz to 3 GHz 0 dBm 18 18 22
>3 GHz to 8 GHz 0 dBm 13 12 18
>8 GHz to 24 GHz 0 dBm 13 12 18
>24 GHz to 26.5 GHz 0 dBm 13 12 18
30 MHz to 1 GHz 15 dBm 36 35 40
>1 GHz to 3 GHz 15 dBm 34 33 37
>3 GHz to 8 GHz 15 dBm 28 27 32
>8 GHz to 24 GHz 15 dBm 28 27 34
>24 GHz to 26.5 GHz 15 dBm 28 27 34
Conditions:
  • Measured when receiving two -6 dBr tones at the following offsets from the center frequency:
    • Center Frequency < 1 GHz: +10 MHz and +10.7 MHz
    • Center Frequency ≥ 1 GHz: +95 MHz and +105 MHz

RF Input Phase Noise

Table 291. RF Input Phase Noise (dBc/Hz), Typical

PXIe-5563
Center Frequency 100 Hz Frequency Offset 1 kHz Frequency Offset 10 kHz Frequency Offset 100 kHz Frequency Offset 1 MHz Frequency Offset 10 MHz Frequency Offset
900 MHz -102 -118 -129 -140 -145 -146
2.4 GHz -93 -117 -127 -134 -143 -144
5.5 GHz -86 -111 -121 -128 -140 -142
10 GHz -81 -107 -117 -124 -136 -140
18 GHz -75 -102 -112 -119 -131 -136
Conditions: 0 dBm Reference Level.

RF Input LO Residual Power

Table 292. RF Input LO Residual Power (dBr), Typical

PXIe-5563
Center Frequency Value
1.75 GHz to 3 GHz -54
>3 GHz to 6 GHz -47
>6 GHz to 8 GHz -51
>8 GHz to 12 GHz -44
>12 GHz to 18 GHz -43
>18 GHz to 23 GHz -40
>23 GHz to 25 GHz -40
>25 GHz to 26.5 GHz -33
Conditions: Peak power level -25 dBm to Specification Maximum Level in RF Output Amplitude Range; maximum LO residual power when generating a CW signal anywhere within the full instrument bandwidth. A digital backoff of 12 dB is representative of the residual LO power performance for many wideband communications signals with a PAPR of approximately 12 dB. The PXIe-5842 uses the low frequency subsystem to directly generate the RF output signal for center frequencies ≤1.75 GHz.

RF Input Residual Sideband Image

Table 293. RF Input Residual Sideband Image (dBc), Typical

PXIe-5563
Center Frequency Value
1.75 GHz to 3 GHz -59
>3 GHz to 6 GHz -48
>6 GHz to 8 GHz -42
>8 GHz to 12 GHz -44
>12 GHz to 18 GHz -50
>18 GHz to 23 GHz -48
>23 GHz to 25 GHz -49
>25 GHz to 26.5 GHz -30
Conditions: Reference level is -30 dBm to +25 dBm; maximum residual sideband image when receiving a CW signal anywhere within the full instrument bandwidth.

The PXIe-5842 uses the low frequency subsystem to directly acquire the RF input signal for center frequencies <1.75 GHz.