National Instruments 781259-01

The National Instruments 781259-01 is an advanced RF Vector Signal Generator designed for integration within modular PXI Express systems, specifically the PXIe-5663E model. This solution combines the capabilities of the PXIe-5601 RF signal downconverter, the PXIe-5622 IF digitizer, and the PXIe-5652 RF analog signal generator to deliver robust signal analysis performance across a frequency range of 10 MHz to 6.6 GHz. The system supports an RF input level from a nominal 0 dBm to a maximum of +20 dBm, managing input signals with adjustable RF input attenuation across a range of 0 dB to 50 dB in 1 dB steps, ensuring safe operation up to +30 dBm.

Exhibiting remarkable tuning resolution of 533 nHz and bandwidth options from less than 1 Hz to 10 MHz, the PXIe-5663E is engineered for precision in demanding applications. The internal reference frequency of 10 MHz guarantees exceptional accuracy with an aging rate of ±5 × 10⁻⁶ per year and temperature stability of ±1 × 10⁻⁶. With typical phase noise of -105 dBc/Hz at 1 GHz, this device ensures superior spectral purity and dynamic range, particularly regarding third-order intermodulation distortion (IMD3) across various frequency bands.

Built to withstand challenging operational environments, the PXIe-5663E functions effectively in ambient temperatures ranging from 0 °C to 55 °C and can be stored between -40 °C and 71 °C. It also complies with stringent safety and EMC standards, including IEC 61010-1 and EN 61326-1, affirming its reliability and durability for sophisticated signal analysis tasks. For a quote or further information, please contact a National Instruments team member.