L4490A KEYSIGHT | Alldatasheet
Document overview
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Technical content
time with a robust, reliable solution.
Features
– Flexible and easily configurable switch mounting system for robust and reliable signal routing – 3D models included for quick RF cable layout and documentation – Graphical web interface for quick setup, troubleshooting and support – Easy connection and control of all the most popular microwave switches and attenuators – Expandable up to 128 coil drives – Effective switch management with switch verification, sequences and relay counter – Software drivers for most common programming environments – LXI compliance includes web interface and built-in Ethernet connectivity The Keysight Technologies, Inc. L4490A/91A RF switch platform simplifies the task of defining and build - ing a custom switch matrix. Engineers are often under pressure to lower cost and get to market quickly. The L4490A/91A provides the right tools to easily define and build a custom switch matrix while reducing your overall design time – all without sacrificing signal integrity. In addition, with the robust design, you can have confidence in the reliability and longevity of your system. The RF switch platform easily integrates into your test environment with standard rack mount kits, LAN and GPIB connectivity, graphical web interface and software drivers for the most common programming environments. This platform is ideal for R&D and manufacturing engineers creating custom switch matrices for A/D and wireless applications testing mobile radios, handsets, basestations, radio components, and other wireless devices. Also, with the broad range of supported switches up to 50 GHz, you can future-proof your invest - ment for emerging standards like WiMAXTM, LTE and UMB. Build custom designs from multiplexers, blocking or non-blocking matrices or a combination of both with signal conditioning to meet your unique needs.
Figure 1. L4490A RF switch platform
Figure 8. Keysight custom solutions are fully integrated, tested and documented
- LabVIEW is a National Instruments product.
tion and integration into your system.
09 | Keysight | L4490A/91A RF Switch Platform – Data Sheet Product Specifications Switch drive 64 channels, low side drive mode Driver off voltage (max) Driver off leakage current Driver on current (max) Driver on voltage (max) 30 V 500 uA 600 uA
0.5 V at 600 mA
64 channels, TTL drive mode Hi output voltage Lo output voltage Lo input current
3 V at lout = 2 mA
0.4 V at lin = 20 mA
Position indicator sense inputs Channels Lo input voltage (max) Hi input voltage (min) Input resistance Maximum input voltage 0.8 V 2.5 V > 100 kΩ at Vin ≤ 5 V > 20 kΩ at Vin > 5 V 30 V Switch drive power supply Voltage 24 V nominal (external power supply required for switches needing different voltages) Current 600 mA (typical 700 mA; 500 mA quiescent + 200 mA for switching) Quiescent Current Requirement Most latching switches require some small amount of quiescent current to remain in their position. This current can range from 1 to 2 mA to 50 mA to 40 mA. Be sure to calculate your quiescent cur - rent needs using the 5989-2272EN Configuration Guide. Example: 12 87106C nominal quiescent current: 12 x 30 mA = 360 mA Plus 6 N1810TL nominal quiescent current: 6 x 1.5 mA = 9 mA Total nominal quiescent current = 369 mA External power connection Voltage range 4.75 V to 30 V Current limit 2 A LED indicator (current mode divers) Channels Supply voltage LED drive current Driver compliance voltage
5 V nominal
(prog 1-20 mA) 0.8 V Memory States 5 instrument states with user label in non- volatile memory
10 | Keysight | L4490A/91A RF Switch Platform – Data Sheet Product Specifications (continued) General specifications Power supply and line frequency 100 V to 240 V ±10% (50-60 Hz ±10% auto sensed) Power consumption 100/200 VA Operating Environment Full accuracy for 0ºC to 55ºC Full accuracy to 80% R.H. at 40ºC Storage environment -40ºC to 70ºC 2U Dimensions (H x W x L) 88.1 x 425.6 x 574.0 mm 3.47 x 17.76 x 22.60 in 2U Weight 7.7 kg (17 lbs) 4U Dimensions (H x W x L) 177.0 x 425.6 x 574.0 mm 6.97 x 17.76 x 22.60 in 4U Weight 9.1 kg (20 lbs) Safety conforms to CSA, UL/IEC/EN 61010-1 EMC conforms to IEC/EN 61326-1, CISPR 11 Warranty 1 year Additional power ±5 V +12 V +24 V 1 A
3 A (3 A fused)
0.6 A Total max power: 1 35 W at 40ºC derated linearly to 10W at 55ºC (L4490A)
40 W at 40ºC derated linearly to 10 W at 55ºC (L4491A)
Max module power disipation 16 digital IO lines plus 28 relay drive lines Power available 6W
12 V regulation no load to full load
5 V regulation no load to full load
10% 6 W 1 W 28 relay drives sink up to 100 mA GPIO ports chan 1 and chan 2 8 configure bits as input or output chan 3 3 output bits 1. If additional power is required to drive relays, use an external power supply.
11 | Keysight | L4490A/91A RF Switch Platform – Data Sheet Product Specifications (continued) Software Keysight connectivity software included Keysight 10 Libraries Suite 15 or greater (E2094N) Minimum system requirements PC hardware Intel Pentium 100 MHz, 64 Mbyte RAM, 210 Mbyte disk space Display 800x600, 256 colors, CD-ROM drive Operating system 1 Windows NT/2000/XP/Vista Software driver support for programming languages Software drivers IVI-C and IVI-COM for Windows NT/2000/XP/Vista LabView Compatible with programming tools and environments Keysight VEE Pro National Instruments TestStand Measurement Studio LabWindows/CVI LabVIEW Switch Executive Microsoft Visual Studio.NET C/C++ Visual Basic 6 1. Load IO Libraries Version M for Windows NT support version 14.0 for Windows 98 SE support
Table 1. Ordering information Required for control of external switches. See Table 2 to determine correct distribution boards needed. Can mount up to 12 transfer switches per bay in the L4491A. Can mount up to 4 attenuators per bay in the L4491A.
Figure 7. L4490A/91A RF switch mounting brackets Table 1. Ordering information (continued)
14 | Keysight | L4490A/91A RF Switch Platform – Data Sheet Custom Matrix from Keysight’s Custom Group Configuration and pricing depends on the defined configuration. See www.keysight.com/find/switchmatrix to find out more. Example configuration: A test system is being built that requires the following microwave switching: – (Qty 6) Keysight 87206B SP6T switches – (Qty 8) Keysight N1810UL SPDT switches Step 1 Select the required quantity of dis - tribution boards for the required switches using Table 2: – (Qty 6) Y1152A distribution boards to control (Qty 6) 87206B switches – (Qty 1) Y1150A distribution board to control (Qty 8) N1810UL switches Step 2 Select switch mounting kits based on switches selected: – (Qty 2) Y1172A mounting kits to mount (Qty 6) 87206B switches – (Qty 2) Y1170A mounting kits to mount (Qty 8) N1810UL switches Step 3 Select the RF Platform and op - tions. For 14 switches, the L4491A is recommended. If more than 4 distribution boards are needed, then you need to add Option 002. Here is the final recommended configuration: – (Qty 6) 87206B DC-20 GHz SP6T switches with option 161 (Qty 6) Y1152A distribution boards (Qty 2) Y1172A mounting brackets plus ribbon cables – (Qty 8) N1810UL DC-20 GHz SPDT switches with options 124, 402, 201 (Qty 1) Y1150A distribution board (Qty 2) Y1170A mounting brackets plus ribbon cables – L4491A w/option 002 for an additional 64 control lines See table 2 for recommended switch options for 24 VDC coils, position indi - cators and DIP socket connectors. See the application note: Keysight 34945A, L4445A & L4490A/ L4491A Configuration Guide (5989-2272EN) for additional configu - ration details.
Table 2. Accessory selection: Use the following table to select distribution boards, mounting brackets and switch options.
26.5 GHz
024 Included 161
- Product and technical overviews for the switches and attenuators listed can be obtained by document number from the Keysight RF & Microwave Test
Accessories website. Go to http://www.keysight.com/find/accessories, select ‘RF & Microwave Test Accessories,’ and search for the document number. on the reference document link.
- Drive Option 403 adds current interrupts which allow continuous drive mode to be used within the 34945A/L4445A/L4490A/L4491A.
- Bracket kits apply to the L4490A and L4491A. These kits include pre-assembled control cables and hardware for mounting switches/attenuators to the
brackets and the bracket assemblies to the L4490A and L4491A RF Switch Platforms.
Use the following table to select distribution boards, mounting brackets and switch options.
- Product and technical overviews for the switches and attenuators listed can be obtained by document number from the Keysight RF & Microwave Test
Accessories website. Go to http://www.keysight.com/find/accessories, select ‘RF & Microwave Test Accessories,’ and search for the document number. on the reference document link.
- Bracket kits apply to the L4490A and L4491A. These kits include pre-assembled control cables and hardware for mounting switches/attenuators to the
brackets and the bracket assemblies to the L4490A and L4491A RF Switch Platforms.
Use the following table to select distribution boards, mounting brackets and switch options (continued).
024 N/A Solder
324 N/A Solder
8 GHz Solid State
18 GHz Solid State
- Product and technical overviews for the switches and attenuators listed can be obtained by document number from the Keysight RF & Microwave Test
Accessories web site. Go to http://www.keysight.com/find/accessories, select ‘RF & Microwave Test Accessories,’ and search for the document number. on the reference document link.
- Bracket kits apply to the L4490A and L4491A. These kits include pre-assembled control cables and hardware for mounting switches/attenuators to the
brackets and the bracket assemblies to the L4490A and L4491A RF Switch Platforms.
Use the following table to select distribution boards, mounting brackets and switch options (continued).
- Product and technical overviews for the switches and attenuators listed can be obtained by document number from the Keysight RF & Microwave Test
Accessories website. Go to http://www.keysight.com/find/accessories, select ‘RF & Microwave Test Accessories,’ and search for the document number. on the reference document link.
- Bracket kits apply to the L4490A and L4491A. These kits include pre-assembled control cables and hardware for mounting switches/attenuators to the
brackets and the bracket assemblies to the L4490A and L4491A RF Switch Platforms.
- Information on these attenuators plus additional information on other attenuators can be found in the latest version of the ‘RF and Microwave Test
19 | Keysight | L4490A/91A RF Switch Platform – Data Sheet This information is subject to change without notice. © Keysight Technologies, 2012 - 2014 Published in USA, December 18, 2014 5989-7857EN www.keysight.com myKeysight www.keysight.com/find/mykeysight A personalized view into the information most relevant to you. www.lxistandard.org LAN eXtensions for Instruments puts the power of Ethernet and the web inside your test systems. Keysight is a founding member of the LXI consortium. Three-Year Warranty www.keysight.com/find/ThreeYearWarranty Keysight’s commitment to superior product quality and lower total cost of ownership. The only test and measurement company with three-year warranty standard on all instruments, worldwide. Keysight Assurance Plans www.keysight.com/find/AssurancePlans Up to five years of protection and no budgetary surprises to ensure your instruments are operating to specification so you can rely on accurate measurements. www.keysight.com/quality Keysight Technologies, Inc. DEKRA Certified ISO 9001:2008 Quality Management System Keysight Channel Partners www.keysight.com/find/channelpartners Get the best of both worlds: Keysight’s measurement expertise and product breadth, combined with channel partner convenience. www.keysight.com/find/L4490A www.keysight.com/find/L4491A For more information on Keysight Technologies’ products, applications or services, please contact your local Keysight office. The complete list is available at: www.keysight.com/find/contactus Americas Canada (877) 894 4414 Brazil 55 11 3351 7010 Mexico 001 800 254 2440 United States (800) 829 4444 Asia Pacific Australia 1 800 629 485 China 800 810 0189 Hong Kong 800 938 693 India 1 800 112 929 Japan 0120 (421) 345 Korea 080 769 0800 Malaysia 1 800 888 848 Singapore 1 800 375 8100 Taiwan 0800 047 866 Other AP Countries (65) 6375 8100 Europe & Middle East Austria 0800 001122 Belgium 0800 58580 Finland 0800 523252 France 0805 980333 Germany 0800 6270999 Ireland 1800 832700 Israel 1 809 343051 Italy 800 599100 Luxembourg +32 800 58580 Netherlands 0800 0233200 Russia 8800 5009286 Spain 0800 000154 Sweden 0200 882255 Switzerland 0800 805353 Opt. 1 (DE) Opt. 2 (FR) Opt. 3 (IT) United Kingdom 0800 0260637 For other unlisted countries: www.keysight.com/find/contactus (BP-07-10-14)