776572-90 NI | Alldatasheet

Document overview

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Technical content

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 V rms 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 Switches 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
  • C E 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

Simultaneous channels at maximum current DC path resistance Dynamic Characteristics Expected relay life: Physical Characteristics Dimensions I/O connectors Environment Safety This product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control and laboratory use:

  • IEC 61010-1, EN 61010-1
  • UL 3111-1, UL 61010B-1
  • CAN/CSA C22.2 No. 1010.1 CE Compliance This product meets the essential requirements of applicable European Directives, as amended for CE Marking, as follows: Electromagnetic Compatibility SCXI-1190, PXI-2590 Input Characteristics Number of banks Input voltage Maximum switching voltage rms Maximum switching capacity per channel RF Performance Characteristics Insertion loss VSWR Isolation Dynamic Characteristics Relay operate time (at 20 °C) Relay release time (at 20 °C) Expected life Electrical at maximum switching capacity 10 5 operations Caution: Exceeding the maximum switching capability decreases expected life. Power Requirement Physical Dimensions Environment 504 National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com SpecificationsSwitches Switch Specifications Specifications (continued) 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 100 200 300 400 500 600 Frequency (MHz) VSWR 700 16x1 8x1 32x1 800 900 1000

SCXI-1191, PXI-2591 Input Characteristics Input voltage rms/VDC Maximum switching voltage Maximum switching capacity per channel RF Performance Characteristics Insertion loss VSWR Isolation Dynamic Characteristics Relay operate time (at 20 °C) Relay release time (at 20 °C) Expected life Electrical (maximum switching capacity).. 10 5 operations Caution: Exceeding the maximum switching capability decreases expected life. Power Requirement Physical Dimensions Environment SCXI-1192 Input Characteristics Input voltage rms/VDC Maximum continuous carry power per channel The total input power for all relays combined should not exceed the preceding specifications. When using multiple relays, refer to table below for adjusted maximum input power RF Performance Characteristics Insertion loss at: VSWR at: Isolation: Dynamic Characteristics Relay operate time (at 20 °C) Relay release time (at 20 °C) Expected life Caution: Exceeding these electrical parameters decreases expected life. Power Requirement Physical Environment SCXI-1163R Input Characteristics Maximum switching voltage rms between banks, and bank to ground Transfer rate in serial mode Switch Specifications 505National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com SpecificationsSwitches Active Relays 1 to 3 GHz 3 to 8 GHz 8 to 12.4 GHz 12.4 to 18 GHz 1 120 W 80 W 60 W 50 W 2 60 W 40 W 30 W 25 W 4 30 W 20 W 15 W 12.5 W 8 15 W 10 W 7.5 W 6.25 W Specifications (continued)