Bandwidth
Equalized Bandwidth
Table 1. PXIe-5665 Equalized Bandwidth
Frequency Range RF Vector Signal Analyzer
Bandwidth Configuration
Equalized Bandwidth
>10 MHz to 14 GHz 50 MHz (Optional) 50 MHz
Self-calibration performed using the NI-RFSA instrument driver with the preselector
disabled. When using the preselector on the PXIe-5605, the signal is not equalized.
Equalization is performed by digital filters in the digitizer. The IF through path is limited to
either 50 MHz or 25 MHz depending on the digitizer option you purchased.

Frequency Reference
Internal Frequency Reference3
Frequency 10 MHz
Initial calibration accuracy ±50 × 10-9 over a temperature range from
15 °C to 35 °C
Temperature stability
15 °C to 35 °C ±10 × 10-9 (maximum)
0 °C to 55 °C ±50 × 10-9
Aging after 30 days of continuous operation
Per day ±0.5 × 10-9 (maximum)
Per year ±100 × 10-9 (maximum)
Accuracy Initial Calibration Accuracy ± Aging ±
Temperature Stability
External Frequency Reference Input5
Frequency 5 MHz to 100 MHz in 1 MHz steps
Lock range ±0.2 × 10-6
Peak-to-peak amplitude (Vpk-pk) 0.5 V to 2.0 V into 50 Ω (≥1 V recommended)
Peak-to-peak absolute maximum
amplitude (Vpk-pk)5 V

PXIe-5665 14 GHz VSA
Mechanical 0 dB to 75 dB in 5 dB steps
(20 Hz to 14 GHz, nominal)
Electronic 0 dB to 30 dB in 1 dB steps
(20 Hz to 3.6 GHz, nominal)

ACCESSORY : Front Connection cable