Pickering 4 878 Series User Manual

Pxi/pxie 50 ω 4-channel rf mems multiplexer

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4x-878 User Manual
PXI/PXIe 50 Ω 4-Channel RF MEMS Multiplexer
pickeringtest.com
Issue 1.5, June 2023

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Summary of Contents for Pickering 4 878 Series

  • Page 1 4x-878 User Manual PXI/PXIe 50 Ω 4-Channel RF MEMS Multiplexer pickeringtest.com Issue 1.5, June 2023...
  • Page 2 © Copyright (2023) Pickering Interfaces. All Rights Reserved. No part of this publication may be reproduced, transmitted, transcribed, translated or stored in any form, or by any means without the written permission of Pickering Interfaces. Technical details contained within this publication are subject to change without notice.
  • Page 3 Pickering Interfaces strives to fulfil all relevant environmental laws and regulations and reduce wastes and releases to the environment. Pickering Interfaces aims to design and operate products in a way that protects the environment and the health and safety of its employees, customers and the public. Pickering Interfaces endeavours to develop and manufacture products that can be produced, distributed, used and recycled, or disposed of, in a safe and environmentally friendly manner.
  • Page 4: Product Safety

    Product Safety Safety Symbols The following safety symbols may be used on the product and throughout the product documentation. Meaning/Description Symbol PROTECTIVE EARTH (GROUND) To identify any terminal which is intended for connection to an external conductor for protection against electric shock in case of a fault, or the terminal of a protective earth (ground) electrode.
  • Page 5: Table Of Contents

    Hardware Installation ..............................3.2 Software Installation ..............................3.2 Testing Operation ................................3.3 Section 4 Programming Guide .................................4.1 Programming Options for Pickering PXI/PXIe Modules ..................4.1 Module Architecture ..............................4.2 Operating & Using MEMS Switching ........................4.2 Programming the Module ............................4.4 Using Pickering Drivers in LabVIEW ........................4.5 Section 5 Connector Information ..............................5.1...
  • Page 6: Warnings And Cautions

    Unused slots in the PXI/PXIe/LXI chassis are populated with blanking plates to prevent access to user I/O signals that may be present. Blanking panels are available to order from Pickering in a variety of slot widths. If the product is not used in this manner for example by using an extender card then additional care must be taken to avoid contact with exposed signals.
  • Page 7 It can also be supported in all Bank 4 Pickering’s LXI Modular Switching chassis, allowing the use of a PXI or LAN controlled switching solution with the same high Quad 4 to 1 RF MUX (Part No. 4x-878-24x) levels of performance.
  • Page 8 Specifications 4x-878 Section 1 - Technical Specification 4x-878 RF Performance Plots (Plots taken from typical sample showing all connecting paths for parameter) Typical VSWR Plot For Each Signal Path (Load on COM) Typical Insertion Loss Plot For Each Signal Path Typical Crosstalk Plot Between Signal Paths (Unloaded) Typical VSWR Plot For Each Signal Path (Load on Channel) Typical Crosstalk Plot Between Signal Paths...
  • Page 9 Specifications 4x-878 Section 1 - Technical Specification RF Specification Mechanical Characteristics RF Frequency Range: DC to 4 GHz, usable to 5 GHz 40-878 - Single slot 3U PXI (CompactPCI card). Insertion Loss: Typically <0.7 dB to 1 GHz 42-878 - Single slot 3U PXIe, compatible with PXIe hybrid slot. Typically <1.4 dB to 4 GHz 3D models for all versions in a variety of popular file formats VSWR:...
  • Page 10 42-878-211 Single MEMS 50Ω 4:1 RF Multiplexer, SMB connectors in PXIe format Product Customization 42-878-241 PXIe Quad 50 Ω 4:1 RF Multiplexer Pickering modules are designed and manufactured on our own flexible manufacturing lines, giving complete product control and enabling simple customization to meet very specific requirements.
  • Page 11: Technical Description

    Section 2 - Technical Description Functional Description A functional block diagram is provided in Figure 2.1. The module is powered by +5 V and +3.3 V (PXI) or +3.3 V and +12 V (PXIe) supplies via PCI Bus connectors mounted on the mother board. The interface to the user test equipment is via the front panel mounted SMB or MCX connectors.
  • Page 12: Installation

    Modular products require installation in a suitable PXI/PXIe/LXI chassis. The module is designed for indoor use only. Pre-operation Checks (Unpacking) 1. Check the module for transport damage and report any damage immediately to Pickering Interfaces. Do not attempt to install the product if any damage is evident.
  • Page 13: Hardware Installation

    If you are not a LabVIEW user you should choose the “full” version, and once that has been installed run the LabVIEW Runtime Engine installer via the shortcut on the Programs>>Pickering menu. In the absence of LabVIEW the Runtime Engine is required to support the Pickering Test Panels application.
  • Page 14: Testing Operation

    Figure 3.2 - General Soft Front Panel Icon A selector panel will appear, listing all installed Pickering PCI, PXI/PXIe or LXI switch cards and resistor cards. Click on the card you wish to control, and a graphical control panel is presented allowing operation of the card. Panels can be opened simultaneously for all the installed cards.
  • Page 15 Section 4 - Programming Programming options for Pickering Interfaces PXI/PXIe Modules For information on the installation and use of drivers and the programming of Pickering’s products in various software environments, please refer to the Software User Manual. This is available as a download from: pickeringtest.com/support/software-drivers-and-downloads...
  • Page 16: Module Architecture

    Section 4 - Programming Module Architecture The 4x-878 module is an 4-channel RF multiplexer based on MEMS switching technology and is available with one, two or four independent banks. The multiplexers have a default state with all signal paths open. The software includes blocking that allows only one out of the four signal paths to be enabled on each bank at any one time.
  • Page 17 Section 4 - Programming Table 4.1 - Sub-unit / Bit allocations for the 4x-878 4-Channel MEMS RF Multiplexer Programming Bit / Signal Path Table Applicable Multiplexer IVI Channel Names IVI Channel Names Sub-Unit Signal Path Modules Bank (multi-bank versions) (single bank versions) C1 to 1 comA chA1...
  • Page 18: Programming The Module

    Once the drivers are installed the manual “Sys40Prg.pdf” and driver help files which fully describes these functions can be found in the Pickering folder(s) or the Pickering entries on your Start Menu. The card must be opened before use and closed after using the following function calls:...
  • Page 19: Using Pickering Drivers In Labview

    Section 4 - Programming Using Pickering Drivers In LabVIEW Most Pickering drivers include a LabVIEW wrapper to permit full operation of the Pickering product from the LabVIEW environment. These wrappers are normally installed to the current LabVIEW folder system during installation of the Pickering driver.
  • Page 20 Section 5 - Connectors pickering pickering pickering Bank 1 Single 4-Channel RF Multiplexer Bank 2 Figure 5.1 - Single 4-Channel MEMS Multiplexer Module 4x-878-21x: SMB/MCX Connector Positions pickeringtest.com Page 5.1...
  • Page 21 Section 5 - Connectors pickering pickering pickering Bank 1 Bank 1 Bank 2 Bank 2 Bank 3 Dual 4-Channel RF Multiplexer Bank 4 Figure 5.2 - Dual 4-Channel MEMS Multiplexer Module 4x-878-22x: SMB/MCX Connector Positions pickeringtest.com Page 5.2...
  • Page 22 Section 5 - Connectors pickering pickering Bank 1 Bank 1 Bank 2 Bank 2 Bank 3 Bank 4 Quad 4-Channel RF Multiplexer Figure 5.3 - Quad 4-Channel MEMS Multiplexer Module 4x-878-24x: SMB/MCX Connector Positions pickeringtest.com Page 5.3...
  • Page 23: Trouble Shooting

    PCI configuration, highlighting any potential configuration problems. Specific details of all installed Pickering switch cards are included. All the installed Pickering switch cards should be listed in the “Pilpxi information” section - if one or more cards is missing it may be possible to determine the reason by referring to the PCI configuration dump contained in the report, but interpretation of this information is far from straightforward, and the support@pickeringtest.com...
  • Page 24: Maintenance Information

    For PXI modules which are supported in one of Pickering Interfaces’ Modular LXI Chassis (such as the 60-102B and 60-103B) no module software update is required. If the module was introduced after the LXI chassis was manufactured the module may not be recognized, in this case the chassis firmware may need upgrading.

This manual is also suitable for:

40-878

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