Telit Wireless Solutions WE866 Hw User Manual
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Telit Wireless Solutions WE866 Hw User Manual

Telit Wireless Solutions WE866 Hw User Manual

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WE866
HW User Guide
1VV0301330 Rev. 3 – 2018-03-13
-13
Mod. 0805 2016-08 Rev.5

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Summary of Contents for Telit Wireless Solutions WE866

  • Page 1 WE866 HW User Guide 1VV0301330 Rev. 3 – 2018-03-13 Mod. 0805 2016-08 Rev.5...

  • Page 2: Notice

    WE866 HW User Guide SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE NOTICE While reasonable efforts have been made to assure the accuracy of this document, Telit assumes no liability resulting from any inaccuracies or omissions in this document, or from use of the information obtained herein.

  • Page 3: Usage And Disclosure Restrictions

    WE866 HW User Guide USAGE AND DISCLOSURE RESTRICTIONS License Agreements The software described in this document is the property of Telit and its licensors. It is furnished by express license agreement only and may be used only in accordance with the terms of such an agreement.

  • Page 4: Applicability Table

    WE866 HW User Guide APPLICABILITY TABLE PRODUCTS WE866A1-P 1VV0301330 Rev. 3 Page 4 of 54 2018-03-13...

  • Page 5: Table Of Contents

    WE866 HW User Guide Contents NOTICE COPYRIGHTS ....................2 COMPUTER SOFTWARE COPYRIGHTS ............2 USAGE AND DISCLOSURE RESTRICTIONS ..........3 License Agreements ..............3 Copyrighted Materials ..............3 III. High Risk Materials ............... 3 Trademarks .................. 3 Third Party Rights ................. 3 APPLICABILITY TABLE ................
  • Page 6 WE866 HW User Guide DIGITAL SECTION ..............22 Logic Levels ................22 Power On..................22 Power Off..................23 Low power deep sleep ..............24 Hibernate ..................24 Shutdown..................24 Communication ports ..............25 5.7.1. SPI....................25 5.7.2. UART ..................26 RF SECTION ................
  • Page 7 WE866 HW User Guide ACRONYMS ................51 DOCUMENT HISTORY .............. 53 1VV0301330 Rev. 3 Page 7 of 54 2018-03-13...

  • Page 8: Introduction

    INTRODUCTION Scope The aim of this document is the description of some hardware solutions useful for developing a product with the Telit WE866 module. Audience This document is intended for Telit customers, who are integrators, about to implement their apllications using our WE866 modules.

  • Page 9: Text Conventions

    WE866 HW User Guide Text Conventions Danger – This information MUST be followed or catastrophic equipment failure or bodily injury may occur. Caution or Warning – Alerts the user to important points about integrating the module, if these points are not followed, the module and end user equipment may fail or malfunction.

  • Page 10: Related Documents

    WE866 HW User Guide Related Documents 1VV0301330 Rev. 3 Page 10 of 54 2018-03-13...

  • Page 11: Overview

    The aim of this document is the description of some hardware solutions useful for developing a product with the Telit WE866 module. In this document all the basic functions of a mobile phone will be taken into account; for each one of them a proper hardware solution will be suggested and eventually the wrong solutions and common errors to be avoided will be evidenced.
  • Page 12 WE866 HW User Guide infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of Telit Communications S.p.A. other than for circuitry embodied in Telit products. This document is subject to change without notice.

  • Page 13: Pins Allocation

    WE866 HW User Guide PINS ALLOCATION Pin-out Signal Function Type Comment Asynchronous Serial Port (USIF0) - Prog. / Data + HW Flow Control Serial data input from DTE Serial data output to DTE Input for Request to send signal (RTS) from DTE...
  • Page 14 WE866 HW User Guide ON_OFF Input command for power Supply output for external accessories WiFi Antenna Power Supply VBATT Main Power supply Power VBATT Main Power supply Power Ground Power Ground Power Ground Power Ground Power Ground Power Ground Power...
  • Page 15 WE866 HW User Guide RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED...
  • Page 16 WE866 HW User Guide Warning – Reserved pins must not be connected. Warning – VDD output must not be used to supply any device on the customer application. It is only provided as reference/supply voltage when voltage translation to 1V8 CMOS is needed.

  • Page 17: Lga Pads Layout

    WE866 HW User Guide LGA Pads Layout TOP VIEW VBATT SPI_CLK SPI_MOSI VBATT 3 SPI_MISO SPI_CS nHIB HOST_INTR RESET* ON_OFF 1VV0301330 Rev. 3 Page 17 of 54 2018-03-13...

  • Page 18: Power Supply

    WE866 HW User Guide POWER SUPPLY Power Supply Requirements The external power supply must be connected to VBATT signals and must fulfill the following requirements: Power Supply Nominal Supply Voltage 3.8 V Normal Operating Voltage Range 3.1 V÷ 4.50 V The Operating Voltage Range MUST never be exceeded;...

  • Page 19: General Design Rules

    WE866 HW User Guide Current consumption(*) (typ) Functional mode [mA] 802.11b, 1Mbps Transmission at 802.11g, 6Mbps maximum power level 802.11g, 54Mbps 802.11b, 1Mbps Reception 802.11g, 54Mbps Idle connected Peak calibration <400 Hibernate 0.03 (*) preliminary values General Design Rules The principal guidelines for the Power Supply Design embrace three different design steps: The electrical design ...

  • Page 20: +5V Source Power Supply Design Guidelines

    WE866 from polarity inversion. This can be the same diode used for spike protection. 4.3.1.3. Battery Source Power Supply Design Guidelines A single 3.7V Li-Ion cell battery can be used to power the WE866 module.  A low-ESR, bypass capacitor of adequate capacity must be provided in ...

  • Page 21: Power Supply Pcb Layout Guidelines

     VDD Power Output A regulated 1.85V supply voltage is provided on pin G6 of the WE866 module. Please note that this voltage has the sole purpose to be a reference, e.g. for external voltage translators. No external devices must be powered from this voltage.

  • Page 22: Digital Section

    WE866 HW User Guide DIGITAL SECTION Logic Levels The following table shows the logic level specifications use in WE866: Parameter Input level on any digital pin -0.3V +2.1V (CMOS 1.8V) when on Level Input high level 1.5V 2.1V Input low level 0.4V...

  • Page 23: Power Off

    WE866 HW User Guide In order to switch on the device it must be applied a input logic high level to ON_OFF pin. VBATT nRESE POWER Device Ready to FW INIT RESET HW INIT STATE serve API calls ITEM NAME...

  • Page 24: Low Power Deep Sleep

    WE866 HW User Guide Low power deep sleep The low power deep sleep (LPDS) mode is an energy-efficient and transparent sleep mode that is entered automatically during periods of inactivity based on internal power optimization algorithms. The device can wake up in less than 3ms from the internal timer or from any incoming host command.

  • Page 25: Communication Ports

    Communication ports 5.7.1. Module WE866 is considered as a slave when it is interfaced with a Host which acts as master. In addition to the standard SPI lines (MOSI, MISO, CLK, CS) it can be used also HOST_INT line. WE866 can interrupt the host using HOST_INT line to initiate the data transfer over the interface.

  • Page 26: Uart

    SPI_nCS HOST_INT INTERRUPT 5.7.2. UART In the table below are listed the UART configuration of WE866. PROPERTY WE866 CONFIGURATION Baud rate 115200 bps, no auto-baud rate detection, can be changed by the host up to 3 Mbps using a special command...
  • Page 27 Figure.. shows the typical UART topology comprised of four standard UART lines (RTS, CTS, TX and RX) plus an optional line INTERRUPT from WE866 module to the host controller to allow efficient low-power mode. The configuration with INTERRUPT line offers the maximum communication reliability and flexibility between the host and the module.

  • Page 28: Rf Section

    WE866 HW User Guide RF SECTION Bands Variants The WE866 module operates in the 2.400-2.500 GHz ISM band, and it complies with protocols 802.11b/g/n. Supported channels are 1-13, at frequencies listed in the following table: Channel Frequency [MHz] 2412 2417...

  • Page 29: Tx Output Power

    WE866 HW User Guide Please note that channel availability may vary according to regional regulations. TX Output power All measures have been taken at VBATT = 3.8V, Tamb = 25°C, if not otherwise stated. Maximum RMS output Datarate power (typ.) (*)

  • Page 30: Rx Sensitivity

    WE866 HW User Guide RX Sensitivity All measures have been taken at VBATT = 3.8V, Tamb = 25°C, if not otherwise stated. Datarate Sensitivity (typ.)(*) Protocol [Mbps] [dBm] -94.7 802.11b (PER < 8%) -92.6 -87.0 -89.0 802.11g (PER < 10%) -88.0...

  • Page 31: Pcb Design Guidelines

    6.4.1. PCB Design guidelines The WE866 module provides a 50Ω antenna pad, which has to be routed to the antenna connector (or the integrated antenna) by means of a transmission line. It is vital that the impedance of this line is controlled to 50Ω. The line should be as short as possible, and keep a constant cross section, without abrupt curves.

  • Page 32: Pcb Guidelines In Case Of Fcc Certification

    WE866 HW User Guide 6.4.2. PCB Guidelines in case of FCC Certification 1VV0301330 Rev. 3 Page 32 of 54 2018-03-13...

  • Page 33: Mechanical Design

    WE866 HW User Guide MECHANICAL DESIGN Drawing 1VV0301330 Rev. 3 Page 33 of 54 2018-03-13...

  • Page 34: Application Pcb Design

    WE866 HW User Guide APPLICATION PCB DESIGN Footprint Recommended footprint for the application: 1VV0301330 Rev. 3 Page 34 of 54 2018-03-13...
  • Page 35 WE866 HW User Guide In order to easily rework the WE866 is suggested to consider on the application a 1.5 mm placement inhibit area around the module. 1VV0301330 Rev. 3 Page 35 of 54 2018-03-13...

  • Page 36: Pcb Pad Design

    WE866 HW User Guide It is also suggested, as common rule for an SMT component, to avoid having a mechanical parts of the application in direct contact with the module. Tip or Information – In the customer application, the region under WIRING INHIBIT (see figure above) must be clear from signal or ground paths.

  • Page 37: Stencil

    WE866 HW User Guide Holes in pad are allowed only for blind holes and not for through holes. Recommendations for PCB pad surfaces: Finish Layer thickness [µm] Properties Good solderability protection, Electro-less Ni / 3 –7 / 0.03 – 0.15...

  • Page 38: Solder Paste

    WE866 HW User Guide Solder paste Lead free Solder paste Sn/Ag/Cu We recommend using only “no clean” solder paste in order to avoid the cleaning of the modules after assembly. Solder Reflow Recommended solder reflow profile Profile Feature Pb-Free Assembly Average ramp-up rate (TL to TP) 3°C/second max...
  • Page 39 Time 25°C to Peak Temperature 8 minutes max. Tip or Information – All temperatures refer to topside of the package, measured on the package body surface. Caution or Warning –WE866 module withstands one reflow process only. 1VV0301330 Rev. 3 Page 39 of 54...

  • Page 40: Packaging

    WE866 HW User Guide PACKAGING Tray The WE866 modules are packaged on trays of 98 pieces each when small quantities are required (i.e. for test and evaluation purposes). 1VV0301330 Rev. 3 Page 40 of 54 2018-03-13...

  • Page 41: Reel

    WE866 HW User Guide Reel The WE866 modules are packaged on reels of 200 pieces each, see picture below. 1VV0301330 Rev. 3 Page 41 of 54 2018-03-13...
  • Page 42 WE866 HW User Guide Caution or Warning –These trays can withstand at the maximum temperature of 65°C. 1VV0301330 Rev. 3 Page 42 of 54 2018-03-13...

  • Page 43: Moisture Sensitivity

    WE866 HW User Guide Moisture sensitivity The moisture sensitivity level of the Product is “3” according with standard IPC/JEDEC J- STD-020, take care of all the relative requirements for using this kind of components. Moreover, the customer has to take care of the following conditions: a) The shelf life of the Product inside of the dry bag is 12 months from the bag seal date, when stored in a non-condensing atmospheric environment of <...

  • Page 44: Conformity Assessment Issues

    WE866 HW User Guide CONFORMITY ASSESSMENT ISSUES FCC/IC Regulatory notices Modification statement Telit has not approved any changes or modifications to this device by the user. Any changes or modifications could void the user’s authority to operate the equipment. Telit n’approuve aucune modification apportée à l’appareil par l’utilisateur, quelle qu’en soit la nature.
  • Page 45 WE866 HW User Guide L'émetteur ne doit pas être colocalisé ni fonctionner conjointement avec à autre antenne ou autre émetteur. WE866A1-P Dipole ½-wave antenna Type RP-SMA connector Gain 2.2 dBi FCC Class B digital device notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
  • Page 46 WE866 HW User Guide CAN ICES-3 (B) / NMB-3 (B) This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de classe B est conforme à la norme canadienne ICES-003 1VV0301330 Rev. 3 Page 46 of 54 2018-03-13...

  • Page 47: 2014/53/Eu Directive

    French conforme aux exigences essentielles et aux autres dispositions pertinentes de la directive 2014/53/CE. Hér með lýsir “Telit Communications S.P.A.” yfir því að “WE866 MODULE” er í samræmi við Icelandic grunnkröfur og aðrar kröfur, sem gerðar eru í tilskipun 2014/53/EU Con la presente “Telit Communications S.P.A.”...
  • Page 48 Hawnhekk, “Telit Communications S.P.A.”, jiddikjara li dan “WE866 module” jikkonforma mal- Maltese ħtiġijiet essenzjali u ma provvedimenti oħrajn relevanti li hemm fid-Dirrettiva 2014/53/EU. “Telit Communications S.P.A.” erklærer herved at utstyret “WE866 module” er i samsvar med Norwegian de grunnleggende krav og øvrige relevante krav i direktiv 2014/53/EF.
  • Page 49 WE866 HW User Guide Thus, the following marking is included in the product: There is no restriction for the commercialization of this device in all the countries of the European Union. Final product integrating this module must be assessed against essential requirements of the 2014/53/EU (RED) Directive.

  • Page 50: Safety Recommendations

    WE866 HW User Guide SAFETY RECOMMENDATIONS READ CAREFULLY Be sure the use of this product is allowed in the country and in the environment required. The use of this product may be dangerous and has to be avoided in the following areas: Where it can interfere with other electronic devices in environments such as ...

  • Page 51: Acronyms

    WE866 HW User Guide ACRONYMS Telit Technical Support Centre TTSC Universal Serial Bus High Speed Data Terminal Equipment Universal Mobile Telecommunication System UMTS Wideband Code Division Multiple Access WCDMA High Speed Downlink Packet Access HSDPA High Speed Uplink Packet Access...
  • Page 52 WE866 HW User Guide Slave Ready SRDY Chip Select Real Time Clock Printed Circuit Board Equivalent Series Resistance Voltage Standing Wave Radio VSWR Vector Network Analyzer 1VV0301330 Rev. 3 Page 52 of 54 2018-03-13...

  • Page 53: Document History

    WE866 HW User Guide DOCUMENT HISTORY Revision Date Changes 2016-10-27 First issue 2016-12-06 Updated Pin Out Table 2017-11-22 Update Par. 9- Packaging 2018-03-13 Updated Par.10- Conformity assessment issues 1VV0301330 Rev. 3 Page 53 of 54 2018-03-13...

  • Page 54: Mod. 0805 2016-08 Rev

    Mod. 0805 2016-08 Rev.5...

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