1.3 GHz and 4 GHz Multiplexers
1.3 GHz and 4 GHz Multiplexers
NI SCXI-1190, NI PXI-2590, NI SCXI-1191, NI PXI-2591
• 4x1 unterminated multiplexer
• 50 characteristic impedance
• High-bandwidth
electromechanical relays
• Excellent insertion loss, VSWR,
and isolation specifications
• Fully software programmable
Operating Systems
• Windows 2000/NT/XP
Recommended Software
• LabVIEW
• LabVIEW Real-Time Module
(PXI Modules only)
• LabWindows/CVI
• Measurement Studio
• NI Switch Executive
SCXI-1190 (quad 4x1),
PXI-2590 (single 4x1)
• 1.3 GHz bandwidth
• SMB direct connectivity
• 1 A at 24 VDC capacity
Other Compatible Software
• Visual Basic
• C/C++
SCXI-1191 (quad 4x1),
PXI-2591 (single 4x1)
• 4 GHz bandwidth
• SMA direct connectivity
• 330 mA at 30 VDC capacity
Driver Software (included)
• NI-SWITCH
Compliance
• CE
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 V
rms
with a maximum current of 1 A. For the
SCXI-1191 and the PXI-2591, the maximum voltage rating is 30 V
rms
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.
Ordering Information
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.
Module
SCXI-1190, PXI-2590 (@ 1.3 GHz)
SCXI-1190, PXI-2590 (@ 2 GHz)
SCXI-1191, PXI-2591 (@ 4 GHz)
Insertion Loss
< 1.5 dB
< 3 dB
< 0.9 dB
VSWR
< 1.5
< 2.5
< 1.5
Switches
Table 1. Parameters of High-Frequency Switching Modules
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.
492
National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com
Switch Specifications
Specifications
Specifications
(continued)
2
1.9
1.8
1.7
1.6
VSWR
1.5
8x1
1.4
1.3
1.2
1.1
0
0
100
200
300
400
500
600
Frequency (MHz)
700
800
900
1000
16x1
32x1
SCXI-1190, PXI-2590
Input Characteristics
Number of channels per bank..........................
Number of banks
SCXI-1190 ..................................................
PXI-2590.....................................................
Input voltage
Channel-to-earth........................................
Maximum switching voltage
AC ............................................................
DC ............................................................
Maximum switching capacity per channel
AC ............................................................
DC ............................................................
Maximum switching power per channel .........
Contact resistance (initial) ...............................
Contact material...............................................
4
4
1
24 VDC
24 V
rms
24 VDC
1 A
rms
at 24 V
rms
1 A at 24 VDC
24 W
100 mΩ maximum
Gold-clad silver
Input Characteristics
Maximum switching voltage............................
Maximum switching current ............................
Maximum carry current....................................
Simultaneous channels at maximum current
PXI-2593 ...................................................
SCXI-1193 ..................................................
DC path resistance
Initial .........................................................
End of life ..................................................
150 V, CAT I
0.5 A (per channel)
1 A (per channel)
2, maximum
4, maximum
<1.0
Ω
≥2.0 Ω
RF Performance Characteristics
Characteristic impedance (Z
0
).........................
Insertion loss
100 MHz ....................................................
500 MHz ....................................................
1.3 GHz ......................................................
2 GHz .........................................................
VSWR
100 MHz ....................................................
500 MHz ...................................................
1.3 GHz ......................................................
2 GHz .........................................................
Isolation
500 MHz ....................................................
1.3 GHz ......................................................
2 GHz .........................................................
Rise time ..........................................................
Signal delay......................................................
Maximum RF carry power at 900 MHz............
50
Ω
<0.4 dB
<0.9 dB
<1.5 dB
<3 dB
<1.15
<1.35
<1.5
<2.5
>60 dB
>50 dB
>30 dB
<300 ps
<3 ns
10 W
Dynamic Characteristics
Maximum scan rate ......................................... 100 operations/s
Expected relay life:
Mechanical ............................................... 5x10
7
operations
Electrical .................................................... 3x10
5
operations (30 V, 0.3 ADC resistive)
Physical Characteristics
Relay type.........................................................
Relay contact material .....................................
Dimensions
PXI-2593.....................................................
SCXI-1193 ..................................................
I/O connectors
PXI-2593.....................................................
SCXI-1193 ..................................................
Trigger connectors............................................
Electromechanical, latching
Silver palladium and gold
10 by 16 by 4 cm (3.9 by 6.3 by 1.6 in.)
3.0 by 17.3 by 19.6 cm (1.2 by 6.7 by 7.6 in.)
18 MCX jacks
36 MCX jacks
2 SMB jacks
Dynamic Characteristics
Relay operate time (at 20 °C)
Typical........................................................ 15 ms
Relay release time (at 20 °C)
Typical........................................................ 15 ms
Expected life
Mechanical (no load)................................. 5x10
6
operations
Electrical at maximum switching capacity 10
5
operations
Caution: Exceeding the maximum switching capability decreases expected life.
Environment
Operating temperature.....................................
Storage temperature ........................................
Relative humidity .............................................
Pollution degree ...............................................
Approved altitudes ..........................................
0 to 50 °C
- 20 to 70 °C
5 to 85% noncondensing
2
Up to 2,000 m
Power Requirement
+5 VDC ............................................................ 600 mA maximum (all relays closed)
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
Physical
Dimensions
SCXI-1190 .................................................. 17.3 by 19.6 by 3.0 cm (6.81 by 7.70 by 1.19 in.)
PXI-2590..................................................... 10 by 16 by 4 cm (3.9 by 6.3 by 1.6 in.)
I/O connectors .................................................. 5 SMB female per bank
Switches
CE Compliance
This product meets the essential requirements of applicable European
Directives, as amended for CE Marking, as follows:
Low-voltage Directive (safety) .................. 73/23/EEC
Electromagnetic Compatibility
Directive (EMC).......................................... 89/336/EEC
Environment
Operating temperature.....................................
Storage temperature ........................................
Relative humidity .............................................
Pollution degree ...............................................
Approved altitudes ..........................................
0 to 50 °C
- 20 to 70 °C
5 to 85% noncondensing
2
Up to 2,000 m
504
National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com
Switch Specifications
Specifications
Specifications
(continued)
SCXI-1191, PXI-2591
Input Characteristics
Number of channels per bank .........................
Number of banks..............................................
SCXI-1191 ..................................................
PXI-2591.....................................................
Input voltage
Channel-to-ground.....................................
Maximum switching voltage
AC ............................................................
DC ............................................................
Maximum switching capacity per channel
AC. ............................................................
DC ............................................................
Maximum switching power per channel .........
Contact on resistance (initial) ..........................
Contact material ..............................................
4
4
4
1
30 V
rms
/VDC
30 V
rms
30 VDC
0.33 A at 30 V
rms
0.33 A at 30 VDC
10 W
200 mΩ maximum
Gold
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
Active Relays
1
2
4
8
1 to 3 GHz
120 W
60 W
30 W
15 W
3 to 8 GHz
80 W
40 W
20 W
10 W
8 to 12.4 GHz
60 W
30 W
15 W
7.5 W
12.4 to 18 GHz
50 W
25 W
12.5 W
6.25 W
Contact resistance (initial) ............................... 100 mΩ maximum
Contact material............................................... Gold plate
RF Performance Characteristics
Characteristic impedance (Z0) .........................
Insertion loss at:
≤4
GHz .......................................................
4 to 8 GHz ..................................................
8 to 12.4 GHz .............................................
12.4 GHz to 18 GHz ...................................
VSWR at:
≤1
GHz .......................................................
1 to 4 GHz ..................................................
4 to 8 GHz ..................................................
8 to 12.4 GHz .............................................
12.4 to 18 GHz ...........................................
Isolation:
≤1
GHz .......................................................
1 to 4 GHz ..................................................
4 to 8 GHz ..................................................
8 to 12.4 GHz .............................................
12.4 to 18 GHz ...........................................
50
Ω
≤0.2
dB
≤0.3
dB
≤0.4
dB
≤0.5
dB
≤1.1
≤1.15
≤1.25
≤1.35
≤1.5
≥85
dB
≥80
dB
≥70
dB
≥65
dB
≥60
dB
RF Performance Characteristics
Characteristic impedance (Z0 ) ........................
Insertion loss
2.5 GHz ......................................................
4 GHz .........................................................
VSWR
2.5 GHz ......................................................
4 GHz .........................................................
Isolation
2.5 GHz ......................................................
4 GHz .........................................................
Maximum RF carry power at 900 MHz............
50
Ω
<0.6 dB
<0.9 dB
<1.3
<1.5
>60 dB
>55 dB
10 W
Dynamic Characteristics
Relay operate time (at 20 °C)
Typical........................................................ 15 ms
Relay release time (at 20 °C)
Typical........................................................ 15 ms
Expected life
Mechanical (no load)................................. 5x10
6
operations
Electrical at 5 W........................................ 5x10
6
operations (to 3 GHz, 50
Ω,
VSWR maximum 1.2)
Caution: Exceeding these electrical parameters decreases expected life.
Dynamic Characteristics
Relay operate time (at 20 °C)
Typical........................................................ 15 ms
Relay release time (at 20 °C)
Typical........................................................ 15 ms
Expected life
Mechanical (no load)................................. 5x10
6
operations
Electrical (maximum switching capacity).. 10
5
operations
Caution: Exceeding the maximum switching capability decreases expected life.
Power Requirement
+5 VDC ............................................................ 800 mA, maximum
Power Requirement
+5 VDC ........................................................... 950 mW maximum (all relays closed)
Physical
Dimensions....................................................... 17.3 by 19.6 by 3.0 cm (6.81 by 7.70 by 1.19 in.)
I/O connector.................................................... 24 SMA female
Physical
Dimensions
SCXI-1191 .................................................. 17.3 by 19.6 by 3.0 cm (6.81 by 7.70 by 1.19 in.)
PXI-2591..................................................... 10 by 16 by 4 cm (3.9 by 6.3 by 1.6 in.)
I/O connector.................................................... 5 SMA female per bank
Environment
Operating temperature..................................... 0 to 50 °C
Storage temperature ........................................ -20 to 70 °C
Relative humidity ............................................. 5 to 85% noncondensing
Environment
Operating temperature..................................... 0 to 50 °C
Storage temperature ........................................ -20 to 70 °C
Relative humidity ............................................. 5 to 85% noncondensing
SCXI-1163R
Input Characteristics
Number of relays..............................................
Relay type.........................................................
Maximum switching voltage
AC ............................................................
DC ............................................................
Maximum switching capacity ..........................
Commonmode isolation ...................................
On-resistance ...................................................
Output capacitance ..........................................
Leakage current................................................
Transfer rate in serial mode
1
(1 word = 32 bits) ......................................
Relay set time ..................................................
Relay reset time ...............................................
Power-on state .................................................
32 organized as 8 optically isolated banks of 4 relays each
Normally open (Form A). solid-state relays
240 VAC
240 VDC
200 mA
250 V
rms
between banks, and bank to ground
8
Ω
110 pF at 50 V, 1 MHz
1 µA maximum
750 words/s
0.6 ms
0.1 ms
Relays open
SCXI-1192
Input Characteristics
Number of relays..............................................
Input voltage
Channel-to-ground.....................................
Maximum switching voltage............................
Maximum carry current per channel................
Maximum continuous carry power per channel
1 to 3 GHz ..................................................
3 to 8 GHz ..................................................
8 to 12.4 GHz .............................................
12.4 to 18 GHz ...........................................
8 SPDT (latching)
30 V
rms
/VDC
30 VDC
2 ADC
120 W
80 W
60 W
50 W
National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com
505
Switches
Microchip MCU
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