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National Instruments 778572-46 PXI RF Multiplexer Switch Module.

The part number 778572-46 from National Instruments is the identifying part number for the PXI-2546 PXI RF Multiplexer Switch Module. This module has a maximum switching voltage of 30 Volts and a maximum carry current of 0.5 Amps per channel, and can carry a maximum RF power of 10 Watts channel to common. Its initial DC path resistance is <0.25 Ω ensuring efficient operation and minimal power loss while its end of life is ≤1.0 Ω, ensuring continued reliable performance. 

This PXI RF module is enclosed in a 3U, one slot, PXI/cPCI module form factor and requires one slot in a PXI chassis. The module physical dimensions are 21.6 by 2.0 by 13.0 cm (8.5 by 0.8 by 5.1 in.), and it weighs 255 g(9 oz). This module is made to function at operable power of 3.7 W at 5 V and 0.3 W at 3.3 V. 

The 778572-46 module is designed to have insertion loss of less than 0.7 dB up to 1 GHz and 1.3 dB up to 2.7 GHz. The VSWR is maintained below 1.25 up to 1 GHz and below 1.6 up to 2.7 GHz, reducing signal interruptions and helps in impedance matching.  This RF module supports input trigger from PXI trigger lines <0...7> with a minimum pulse width of 150 ns and output trigger from PXI trigger lines <0...7> with a pulse width of 1 µs to 62 µs. The 778572-46 module have an expected mechanical life of  1x10^6 cycles and an electrical life ranging from 3 × 10^5 cycles at maximum load, ensuring long-term reliability. 

It operates within an ambient temperature range of 0 degrees Celsius to 55 degrees Celsius (Tested in accordance with IEC 60068-2-1 and IEC 60068-2-2) and the module can withstand storage temperatures from -20 degrees Celsius to 70 degrees Celsius with relative humidity levels from 5% to 85%, non-condensing. This module is designed to be mounted at a maximum altitude of 2,000 meters and meets Pollution Degree 2 standards. It is designed for indoor use only and with compliance of many certifications, this equipment is a best choice for measurement, control and laboratory use.