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777987-01 Datasheet(PDF) 1 Page - National Instruments Corporation |
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777987-01 Datasheet(HTML) 1 Page - National Instruments Corporation |
1 / 3 page Overview The National Instruments PXI-2590 and PXI-2591 are 4x1 high- frequency unterminated multiplexing switches. The NI SCXI-1190 and NI SCXI-1191 perform the same functions as the PXI-2590 and PXI-2591 but also offer a quad 4x1 multiplexing configuration. The switches are capable of switching signals from DC to 1.3 GHz (SCXI-1190 and PXI-2590) and DC to 4 GHz (SCXI-1191 and PXI-2591). The characteristic impedance of the channels is 50 . For the SCXI-1190 and the PXI-2590, the maximum voltage rating of the switches is 24 Vrms with a maximum current of 1 A. For the SCXI-1191 and the PXI-2591, the maximum voltage rating is 30 Vrms with a maximum current of 330 mA. All are well suited for applications that require the routing of high-frequency signals inside automated test equipment (ATE) systems because they can switch signals with a very low insertion loss. In addition, the excellent voltage standing-wave ratio (VSWR) and isolation parameters make these modules the perfect choice in a system geared to high- frequency applications as shown in Table 1. Extended Features and Specifications National Instruments switch modules are built with a number of core features that are covered in detail in the Switch Overview section. For additional information about the PXI-2590, PXI-2591, SCXI-1190, and SCXI-1191, including software, certifications and compliance, relay control, etc., please see page 20. For detailed specifications, please see page 504. 1.3 GHz and 4 GHz Multiplexers 492 National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com NI SCXI-1190 ................................................................776572-90 NI PXI-2590 ..................................................................777987-01 NI SCXI-1191 ................................................................776572-91 NI PXI-2591 ..................................................................778339-01 Includes switch module and NI-SWITCH driver software. For information on extended warranty and value added services, see page 20. See page 499 for accessory and cable information. BUY ONLINE! Visit ni.com/products and enter pxi2590, pxi2591, scxi1190, and/or scxi1191. Ordering Information • 4x1 unterminated multiplexer • 50 characteristic impedance •High-bandwidth electromechanical relays •Excellent insertion loss, VSWR, and isolation specifications •Fully software programmable SCXI-1190 (quad 4x1), PXI-2590 (single 4x1) • 1.3 GHz bandwidth • SMB direct connectivity •1 A at 24 VDC capacity SCXI-1191 (quad 4x1), PXI-2591 (single 4x1) •4 GHz bandwidth • SMA direct connectivity • 330 mA at 30 VDC capacity Operating Systems •Windows 2000/NT/XP Recommended Software • LabVIEW • LabVIEW Real-Time Module (PXI Modules only) • LabWindows/CVI •Measurement Studio • NI Switch Executive Other Compatible Software •Visual Basic • C/C++ Driver Software (included) • NI-SWITCH Compliance •CE NI SCXI-1190, NI PXI-2590, NI SCXI-1191, NI PXI-2591 Module Insertion Loss VSWR SCXI-1190, PXI-2590 (@ 1.3 GHz) < 1.5 dB < 1.5 SCXI-1190, PXI-2590 (@ 2 GHz) < 3 dB < 2.5 SCXI-1191, PXI-2591 (@ 4 GHz) < 0.9 dB < 1.5 Table 1. Parameters of High-Frequency Switching Modules |
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