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1DX M.2 Module - Datasheet Document status: Preliminary Copyright 2019 © Embedded Artists AB 1DX M.2 Module Datasheet Get Up-and-Running Quickly and Start Developing Your Application On Day 1! EA2-DS-1901 Rev A 1DX M.2 Module - Datasheet Page 2 Embedded Artists AB Jörgen Ankersgatan 12 211 45 Malmö Sweden http://www.EmbeddedArtists.com Copyright 2019 © Embedded Artists AB. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of Embedded Artists AB. Disclaimer Embedded Artists AB makes no representation or warranties with respect to the contents hereof and specifically disclaim any implied warranties or merchantability or fitness for any particular purpose. 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Copyright 2019 © Embedded Artists AB 1DX M.2 Module - Datasheet Page 3 Table of Contents 1 Document Revision History 4 2 Introduction 5 2.1 Benefits of Using an M.2 Module to get Wi-Fi/BT Connectivity 5 2.2 More M.2 Related Information 5 2.3 ESD Precaution and Handling 5 2.4 Product Compliance 5 3 Specification 6 3.1 Power Up Sequence 7 3.2 External Sleep Clock 7 3.3 Mechanical Dimensions 7 3.4 M.2 Pinning 9 3.5 Test Points 12 3.6 VDDIO Override Feature 12 4 Antenna 4.1 Mounting and Clearance 13 4.2 Overriding PCB Trace Antenna 14 4.3 On-board Trace Antenna Performance 15 4.3.1 1DX M.2 Module Mounted on iMX OEM Carrier Board 15 4.3.2 1DX M.2 Module Standalone 18 5 Regulatory 20 6 Disclaimers 21 6.1 Copyright 2019 © Embedded Artists AB 13 Definition of Document Status 22 1DX M.2 Module - Datasheet Page 4 1 Document Revision History Revision Date Description PA1 2019-04-16 First version. Copyright 2019 © Embedded Artists AB 1DX M.2 Module - Datasheet Page 5 2 Introduction This document is a datasheet that specifies and describes the 1DX M.2 module mainly from a hardware point of view. Software related issues, like the Linux and WICED drivers, are not addressed. There are separate documents for that. 2.1 Benefits of Using an M.2 Module to get Wi-Fi/BT Connectivity There are several benefit to use an M.2 module to add connectivity to an embedded design:   Drop-in, certified solution! Modular and flexible approach to evaluate different Wi-Fi/BT solutions - with different tradeoffs around performance, cost, power consumption, longevity, etc. Access to maintained software drivers (Linux and WICED) with responsive support from Murata. Supported by Embedded Artists' Developer's Kits for i.MX RT/6/7/8 development, including advanced debugging support on carrier boards One component to buy, instead of 50+ No RF expertise is required Developed in close collaboration with Murata and Cypress      2.2 More M.2 Related Information For more information about the M.2 standard and Embedded Artists' adaptation, see: M.2 Primer For more general information about the M.2 standard, see: https://en.wikipedia.org/wiki/M.2 The official M.2 specification (PCI Express M.2 Specification) is available from: www.pcisig.com 2.3 ESD Precaution and Handling Please note that the M.2 module come without any case/box and all components are exposed for finger touches – and therefore extra attention must be paid to ESD (electrostatic discharge) precaution, for example use of staticfree workstation and grounding strap. Only qualified personnel shall handle the product. Make it a habit always to first touch the mounting hole (which is grounded) for a few seconds with both hands before touching any other parts of the boards. That way, you will have the same potential as the board and therefore minimize the risk for ESD. In general touch as little as possible on the boards in order to minimize the risk of ESD damage. The only reasons to touch the board are when mounting/unmounting it on a carrier board. Note that Embedded Artists does not replace modules that have been damaged by ESD. 2.4 Product Compliance Visit Embedded Artists' website at http://www.embeddedartists.com/product_compliance for up to date information about product compliances such as CE, RoHS2, Conflict Minerals, REACH, etc. Copyright 2019 © Embedded Artists AB 1DX M.2 Module - Datasheet Page 6 3 Specification This chapter lists some of the more important characteristics of the M.2 module, but it is not a full specification of performance and timing. The main component in the design is Murata's 1DX module (full part number: LBEE5KL1DX), which in turn is based around Cypress CYW4343W chipset. For a full specification, see on Murata's 1DX Module (LBEE5KL1DX) see Murata’s 1DX product page (https://wireless.murata.com/eng/type-1dx.html) and the 1DX datasheet (https://wireless.murata.com/datasheet?/RFM/data/lbee5kl1dx.pdf). Module / Chipset Murata module LBEE5KL1DX Chipset Cypress CYW4343W Wi-Fi Standards 802.11b/g/n Network AP and STA dual mode Frequency 2.4GHz band Data rates 11, 54, 65 Mbps Host interface SDIO 2.0, SDR25@50MHz Bluetooth Standards 4.2 BR/EDR/LE Power Class Class 1 Host interface 4-wire UART@3MBaud Audio interface PCM for audio Powering Supply voltage to M.2 module Note: Do not exceed maximum voltage. Module will be permanently damaged above this limit! Min Typ Max -0.5V absolute min 3.0V operating 3.2V RF specification 3.3V 3.6V Note that LBEE5KL1DX module specification is 4.8V, but other components on the M.2 module limits the maximum voltage Receive mode current (WLAN) 47 mA typical Transmit mode current (WLAN) 320 mA typical, 370 mA maximum Environmental Specification Operational Temperature -30 to +70 degrees Celsius Specification Temperature (for Wi-Fi/BT communication) -10 to +55 degrees Celsius Copyright 2019 © Embedded Artists AB 1DX M.2 Module - Datasheet Page 7 Storage Temperature -40 to +85 degrees Celsius Relative Humidity (RH), operating and storage 10 - 90% non-condensing 3.1 Power Up Sequence The supply voltage shall not rise (10 - 90%) faster than 40 microseconds and not slower than 100 milliseconds. Signals WL_REG_ON or BT_REG_ON must be held low for at least 700 microseconds after supply voltage has reached specification level before pulled high. 2 clock cycles of the 32.678kHz clock must also have passed before any of the signals is pulled high. These clock cycles will typically occur during the 700 microseconds but if the clock signal has a long delay during power-up, the 700 microsecond period can be extended. 3.2 External Sleep Clock The sleep clock signals can be applied to a powered and unpowered M.2 module. Clock Specification Frequency 32.768 kHz Frequency accuracy ±200 ppm Duty cycle 30 - 70% Clock jitter 5 mm >5mm clearance to non-metallic case. >5 mm >7.5mm clearance (under and over pcb) to non-metallic case. Antenna area marked with dashed rectangle. Figure 5 – M.2 Module Clearance Area Copyright 2019 © Embedded Artists AB 1DX M.2 Module - Datasheet 4.2 Page 14 Overriding PCB Trace Antenna The antenna connection from the 1DX module be redirected to the u.fl. connector by just moving one zero ohm 0402 resistor, see illustration below. The on-board trace antenna can be left as-is, or the antenna can be snapped-off. Snap-off on-board antenna, if needed, else just leave as-is. Remove this series resistor and mount a zero ohm 0402 resistor as shown in red rectangle (towards u.fl. connector) Figure 6 – Rework to Connect U.FL. Connector Copyright 2019 © Embedded Artists AB 1DX M.2 Module - Datasheet 4.3 Page 15 On-board Trace Antenna Performance The on-board pcb trace antenna type is monopole. The 1DX M.2 module has been measured both standalone and mounted on the iMX OEM Carrier Board (which is a typical carrier board design). The table below lists total efficiency: Condition Frequency [MHz] Average dB Average % -2.2 -2.3 58.4 -2.7 -2.8 52.3 2400 2442 2484 M.2 module mounted on reference carrier board -2.5 -2.3 M.2 module standalone -2.9 -2.8 The table below lists peak gain: Condition Frequency [MHz] Max dBi 2400 2442 2484 M.2 module mounted on reference carrier board 0.0 -0.1 0.1 0.1 M.2 module standalone -0.5 -0.1 0.2 0.2 4.3.1 1DX M.2 Module Mounted on iMX OEM Carrier Board The 3D directivity measurements are presented below for the 2.4 GHz bands when the 1DX M.2 module is mounted on the iMX OEM Carrier Board. Copyright 2019 © Embedded Artists AB 1DX M.2 Module - Datasheet Page 16 Figure 7 – 3D Directivity Measurements in 2.4 GHz Band (1DX M.2 Mounted on iMX OEM Carrier Board) Figure 8 – 3D Directivity Measurements Plane Orientations The pictures below illustrates the return loss, efficiency and directivity when the 1DX M.2 module is mounted on the iMX OEM Carrier Board. Copyright 2019 © Embedded Artists AB 1DX M.2 Module - Datasheet Figure 9 – Return Loss for 1DX M.2 Module Mounted on iMX OEM Carrier Board Figure 10 – Efficiency for 1DX M.2 Module Mounted on iMX OEM Carrier Board Figure 11 – Directivity for 1DX M.2 Module Mounted on iMX OEM Carrier Board Copyright 2019 © Embedded Artists AB Page 17 1DX M.2 Module - Datasheet 4.3.2 Page 18 1DX M.2 Module Standalone The 3D directivity measurements are presented below for the 2.4 GHz when the 1DX M.2 module is standalone. Figure 12 – 3D Directivity Measurements Plane Orientations The pictures below illustrates the return loss, efficiency and directivity when the 1DX M.2 module is standalone. Copyright 2019 © Embedded Artists AB 1DX M.2 Module - Datasheet Figure 13 – Return Loss for 1DX M.2 Module Standalone Figure 14 – Efficiency for 1DX M.2 Module Standalone Figure 15 – Directivity for 1DX M.2 Module Standalone Copyright 2019 © Embedded Artists AB Page 19 1DX M.2 Module - Datasheet 5 Regulatory Copyright 2019 © Embedded Artists AB Page 20 1DX M.2 Module - Datasheet Page 21 6 Disclaimers Embedded Artists reserves the right to make changes to information published in this document, including, without limitation, specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Customer is responsible for the design and operation of their applications and products using Embedded Artists’ products, and Embedded Artists accepts no liability for any assistance with applications or customer product design. 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Customer is responsible for doing all necessary testing for the customer’s applications and products using Embedded Artists’ products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). Embedded Artists does not accept any liability in this respect. Embedded Artists does not accept any liability for errata on individual components. Customer is responsible to make sure all errata published by the manufacturer of each component are taken note of. The manufacturer's advice should be followed. Embedded Artists does not accept any liability and no warranty is given for any unexpected software behavior due to deficient components. Customer is required to take note of manufacturer's specification of used components. Such specifications, if applicable, contains additional information that must be taken note of for the safe and reliable operation. 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Resale of Embedded Artists’ products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by Embedded Artists Copyright 2019 © Embedded Artists AB 1DX M.2 Module - Datasheet Page 22 for the Embedded Artists’ product or service described herein and shall not create or extend in any manner whatsoever, any liability of Embedded Artists. This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from national authorities. 6.1 Definition of Document Status Preliminary – The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. Embedded Artists does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. The document is in this state until the product has passed Embedded Artists product qualification tests. Approved – The information and data provided define the specification of the product as agreed between Embedded Artists and its customer, unless Embedded Artists and customer have explicitly agreed otherwise in writing. Copyright 2019 © Embedded Artists AB