Telit Wireless Solutions WE865-DUAL Hardware User's Manual
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Telit Wireless Solutions WE865-DUAL Hardware User's Manual

Telit Wireless Solutions WE865-DUAL Hardware User's Manual

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WE865-DUAL Hardware User Guide
1vv0300787 Rev. 1 - 03/10/08

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Summary of Contents for Telit Wireless Solutions WE865-DUAL

  • Page 1 WE865-DUAL Hardware User Guide 1vv0300787 Rev. 1 - 03/10/08...
  • Page 2 WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 This document is relating to the following products: WE865DUA000-001 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 2 of 48...

  • Page 3: Table Of Contents

    3.1  Pin table..........................10  3.2  Ball grid ..........................12  Electrical description .....................13     4.1  Power supply ........................13  4.1.1 Unique supply voltage for WE865-DUAL and GE863-PRO ............13     4.1.1.1 Current consumption ......................... 15     4.1.1.2 Shut-down mode........................15  ...
  • Page 4 WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 9.1.4 Pin table ............................39     Mounting the WE865-DUAL on the application board ..........40     10.1  Stencil............................40  10.2  PCB pad design ........................40  10.3  Solder paste ..........................43  10.4  Solder reflow.........................43 ...
  • Page 5 WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 DISCLAIMER The information contained in this document is proprietary information of Telit Communications S.p.A. including its affiliates (“TELIT”). The contents are confidential and any disclosure to persons other than the Officers, employees, agents or subcontractors of the owner or licensee of this document, without the prior written consent of Telit, is strictly prohibited.

  • Page 6: Overview

    This document cannot embrace the whole hardware solutions and products that may be designed. The information given is a guide line and a starting point for properly developing products with the Telit WE865-DUAL module. For further hardware details please refer to the Telit “WE865-DUAL Product Description” document. NOTICE WE865-DUAL...

  • Page 7: Related Documents

    1.1 Related documents The following documents are related to this user guide: [1] Telit WE865-DUAL Product Description 80312ST10046A [2] Telit WE865-DUAL Software User Guide 1vv0300788 [3] Telit GE863-PRO³ Hardware User Guide 1vv0300773a [4] Telit GE863-PRO³ Software User Guide 1vv0300788 [5] Telit GE863PRO...

  • Page 8: Mechanical Description

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 2 Mechanical description Telit WE865-DUAL module overall dimensions are: • Length: 22.15 mm (max) • Width: 22.15 mm (max) • Thickness: 3.48 mm (max) • Weight 3.5 g Figure 1 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved...
  • Page 9 WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 Figure 2 (Bottom side) Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 9 of 48...

  • Page 10: Pin-Out

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 3 Pin-out 3.1 Pin table Internal PULL Ball Signal Function Type UP/DOWN SDIO SDIO[0] SDIO DATA[0] (or SPI MISO) 10KOhm pull-up SDIO (or SPI) SDIO DATA[1] (or SPI INTERRUPT) SDIO[1] 10KOhm pull-up...
  • Page 11 WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 Internal PULL Ball Signal Function Type UP/DOWN N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C.

  • Page 12: Ball Grid

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 3.2 Ball grid SDIO[0] EN_A* MR_RESET* EN_B* VCC_A SDIO[2] SDIO[1] RESET VCC_A SDIO_CLK SDIO[3] TEST_1 VCC_A SDIO_CMD TEST_2 TEST_3 TEST_4 RF_ANT Table 2 NOTE: The drawing above is a top view.

  • Page 13: Electrical Description

    The above voltage range is chosen in order to use the same voltage range for the Wi-Fi module WE865-DUAL and the GE863-PRO 4.1.1 Unique supply voltage for WE865-DUAL and GE863-PRO In order to get the suitable voltage range valid for both WE865-DUAL and GE863-PRO certain balls need to be connected as described below.
  • Page 14 WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 3.8 V (typ) WE865-DUAL VCC_A (F1) VCC_A (F2) VCC_A (F3) VDD (E1) VDD (E2) Figure 3 The table below shows the operating and absolute voltage ranges. VOLTAGE RANGES @ 25 °C...

  • Page 15: Current Consumption

    NOTE: continuous receive and transmit mode measures were taken at channel 6. 4.1.1.2 Shut-down mode In order to minimize the current consumption it is possible to completely shut-down the WE865-DUAL. That is achieved by acting on the relevant signal outside the module, which directly acts on the power device enable/Shut-down signals.

  • Page 16: Power Supply Design Guidelines

    The power supply circuitry is a very important part in the full product design and it strongly affects the product overall performances, hence read carefully the requirements and the guidelines that will follow for a proper design. The table below shows the WE865-DUAL operating voltage range: VOLTAGE RANGE Nominal Supply Voltage 3.8V...

  • Page 17: Input Source

    A protection diode should be inserted close to the power input, in order to save the WE865-DUAL from power polarity inversion. This can be the same diode as for spike protection.

  • Page 18: Input Source

    This allows the regulator to respond quickly to any current peak absorption. A protection diode should be inserted close to the power input, in order to save the WE865-DUAL from power polarity inversion. This can be the same diode as for spike protection.
  • Page 19 WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 Figure 6 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 19 of 48...

  • Page 20: Battery Source

    A protection diode should be inserted close to the power input, in order to save the WE865-DUAL from power polarity inversion. Otherwise the battery connector should be done in a way to avoid polarity inversions when connecting the battery.

  • Page 21: Reset

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 4.3.1 Reset An active high host reset (RESET, ball D2), allowing the WE865-DUAL to be reset by an external device (host). This pin is internally pulled-down, do not drive the signal during normal operation.

  • Page 22: Manual Reset

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 4.3.2 Manual reset An active low manual reset (MR_RESET*, ball C1), see the table below for the allowed voltage levels. As the pin is internally pulled-up, do not drive the signal during normal operation.

  • Page 23: Sdio Signals

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 4.4 SDIO signals A 4-data bit SDIO interface is available on the WE865-DUAL that must be connected to the host processor (Telit GE863-PRO WE865-DUAL SDIO voltage levels are fully compatible with the GE863-PRO I/O voltage levels.

  • Page 24: Thermal Design Guidelines

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 5 Thermal design guidelines The thermal design for the power supply heat sink should be done taking into account the current consumption involved in the appropriate power supply configuration. Please refer to §4.1.1.1 for detailed information on the current consumption.

  • Page 25: Pcb Layout Design Guidelines

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 6 PCB layout design guidelines In case of implementing the input power supply circuitry as described in the previous §4.2.2, the PCB traces connecting the switching output to the inductor and the switching diode must be as short as possible.

  • Page 26: Antenna

    7.1 Wi-Fi antenna guidelines General guidelines for an antenna and antenna line on PCB for a Telit WE865-DUAL device ANTENNA REQUIREMENTS Frequency range [MHz]...

  • Page 27: Wi-Fi Antenna Pcb Trace Guidelines

    PCB and surround it with Ground planes, or shield it with a metal frame cover. • If you don't have EM noisy devices around the PCB of WE865-DUAL, by using a strip-line on the superficial copper layer for the antenna line, the line attenuation will be lower than a buried one.

  • Page 28: Wi-Fi Antenna Installation Guidelines

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 7.3 Wi-Fi antenna installation guidelines • Install the antenna in a place covered by the Wi-Fi signal. • The antenna must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.

  • Page 29: Integration With The Ge863-Pro

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 8 Integration with the GE863-PRO Figure 9 (Block diagram) NOTE: It is mandatory to leave available the TEST lines in the customer design: • TEST_1 • TEST_2 • TEST_3 • TEST_4 Reproduction forbidden without Telit Communications S.p.A.

  • Page 30: Power Supply

    It is possible to connect together the two power inputs since they have compatible ranges, but if it is desired the two power supplies can be kept separate. If keeping separated VBATT and VBATT2 is the chosen solution, the WE865-DUAL 3.8V power balls (VCC_A) should be connected to the same voltage source feeding VBATT2.

  • Page 31: Sdio Signals

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 SDIO signals A 4-data bit SDIO interface is available on the WE865-DUAL that must be connected to the host processor (Telit GE863-PRO The WE865-DUAL SDIO voltage levels are fully compatible with the GE863-PRO I/O voltage levels.

  • Page 32: We865-Dual - Evaluation Kit

    • WE865-DUAL interface board In such a case, the WE865-DUAL module is directly soldered on its interface board. The figure below shows how the boards must be assembled in order to allow the system working. WE865-DUAL interface board...
  • Page 33 WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 GE863-PRO WE865-DUAL interface board WE865-DUAL EVK-PRO Figure 13 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 33 of 48...
  • Page 34 WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 EVK-PRO WE865-DUAL interface board WE865-DUAL GE863-PRO Figure 14 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 34 of 48...

  • Page 35: We865-Dual Interface Board

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 WE865-DUAL Interface board 9.1.1 Mechanical description Figure 15 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 35 of 48...

  • Page 36: Main Components

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 9.1.2 Main components Main components TOP side list: WE865-DUAL module PL101: 2 pin jumper PL102: 2 pin jumper SW101: Reset button – Push to drive MR_RESET* low) SO104: RF connector (alternative to AT101)
  • Page 37 WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 Main components BOTTOM side list: SO101: Interface connector SO102: Interface connector SO103: Interface connector Figure 17 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 37 of 48...

  • Page 38: Jumpers Settings

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 9.1.3 Jumpers settings The figure below shows the PL101 and PL102 jumpers on the TOP side in the interface board Figure 18 PL101 - Short the jumper to drive EN_A* low PL102 - Short the jumper to drive EN_B* low Reproduction forbidden without Telit Communications S.p.A.

  • Page 39: Pin Table

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 9.1.4 Pin table SO101 SO102 SO103 PL103 Pin n. Signal name Signal name Signal name Signal name RESERVED RESERVED RESERVED TEST_1 RESERVED RESERVED RESERVED TEST_2 RESERVED RESERVED RESERVED TEST_3 RESERVED RESERVED...

  • Page 40: Mounting The We865-Dual On The Application Board

    1vv0300787 Rev. 1 - 03/10/08 10 Mounting the WE865-DUAL on the application board The Telit WE865-DUAL module has been designed in order to be compliant with a standard lead-free SMT process. 10.1 Stencil Stencil’s apertures layout can be the same of the recommended footprint (1:1), we suggest a thickness of stencil foil ≥...
  • Page 41 WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 Figure 20 Recommendations for PCB pad dimensions Dimension Value [mm] Ball pitch Solder resist opening diameter A 1,150 Metal PAD diameter B 1 +/- 0,05 Table 15 Placement of microvias not covered by solder resist is not recommended inside the “Solder resist Opening”,unless the microvia carry the same signal of the pad itself.
  • Page 42 WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 Figure 21 Holes in pad are allowed only for blind holes and not for through holes. Recommendations for PCB pad surfaces: Finish Layer tickness [um] Properties Electro-less Ni / 3-7 /...

  • Page 43: Solder Paste

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 10.3 Solder paste Lead free Solder paste Sn / Ag / Cu Table 17 10.4 Solder reflow The following is the recommended solder reflow profile Figure 22 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved...
  • Page 44 Table 18 NOTE: All temperatures refer to topside of the package, measured on the package body surface. IMPORTANT: WE865-DUAL module can accept only one reflow process Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 44 of 48...

  • Page 45: Moisture Sensitivity

    1vv0300787 Rev. 1 - 03/10/08 11 Moisture sensitivity The level of moisture sensibility of Telit WE865-DUAL modules 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: •...

  • Page 46: Conformity Assessment Issues

    Low Voltage Directive 73/23/EEC and product safety • Directive 89/336/EEC for conformity for EMC In order to satisfy the essential requisite of the R&TTE 99/5/EC directive, the WE865-DUAL module is compliant with the following standards: • Use of RF Spectrum. Standard: EN 300 328 v1.7.1 (2006-10) •...

  • Page 47: Safety Recommendations

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 13 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:...

  • Page 48: Document Change Log

    WE865-DUAL HW User Guide 1vv0300787 Rev. 1 - 03/10/08 14 Document change log ISSUE#0 20/08/08 Preliminary Release ISSUE#1 03/10/08 Updated mechanical dimensions Updated pin-out and ball grid Updated power configuration section Added current consumption Updated reset section Updated antenna section...

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