Telit Wireless Solutions WL865E4-P User Manual
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Telit Wireless Solutions WL865E4-P User Manual

Telit Wireless Solutions WL865E4-P User Manual

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WL865E4-P
HW User Guide
1VV0301580 Rev. 1 – 2019-04-02
Mod. 0805 2017-01 Rev.6

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Summary of Contents for Telit Wireless Solutions WL865E4-P

  • Page 1 WL865E4-P HW User Guide 1VV0301580 Rev. 1 – 2019-04-02 Mod. 0805 2017-01 Rev.6...

  • Page 2: Notice

    WL865E4-P Module Hardware 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

    WL865E4-P Module Hardware 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 (Remove Unused)

    WL865E4-P Module Hardware User Guide APPLICABILITY TABLE (REMOVE UNUSED) PRODUCTS WL865E4-P 1VV0301580 Rev. 1 Page 4 of 52 2019-04-02...

  • Page 5: Table Of Contents

    WL865E4-P Module Hardware User Guide Contents NOTICE COPYRIGHTS ....................2 COMPUTER SOFTWARE COPYRIGHTS ............2 USAGE AND DISCLOSURE RESTRICTIONS ..........3 APPLICABILITY TABLE (REMOVE UNUSED) ..........4 CONTENTS ....................5 INTRODUCTION ................8 Scope ................... 8 Audience..................8 Contact Information, Support ............8 Text Conventions ................
  • Page 6 WL865E4-P Module Hardware User Guide 5.4.5. I2C ....................24 5.4.6. USB .................... 24 General purpose I/O ..............24 ADC / DAC Converter ..............25 Special Functions ............... 26 General Digital Interface Recommendations ....... 26 RF SECTION ................27 Bands Variants ................27 6.1.1.
  • Page 7 WL865E4-P Module Hardware User Guide Stencil ..................41 Solder paste ................41 Solder Reflow ................42 PACKAGING ................44 Tray .................... 44 Moisture sensitivity ..............45 CONFORMITY ASSESSMENT ISSUES ........46 FCC/IC Regulatory notices ............46 SAFETY RECOMMENDATIONS..........47 READ CAREFULLY ..............47 ACRONYMS ................

  • 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 WL865E4-P module. Audience This document is intended for Telit customers, who are integrators, about to implement their applications using our WL865E4-P modules.

  • Page 9: Text Conventions

    WL865E4-P Module Hardware 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

    WL865E4-P Module Hardware User Guide Related Documents WL865E4-P AT Command Reference Guide WL865E4-P EVB USER GUIDE 1VV0301580 Rev. 1 Page 10 of 52 2019-04-02...

  • Page 11: Overview

    Telit WL865E4-P module. For further hardware details that may not be explained in this document refer to the Telit WL865E4-P Product Description document where all the hardware information is reported.
  • Page 12 WL865E4-P Module Hardware User Guide 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. 1VV0301580 Rev. 1 Page 12 of 52...

  • Page 13: Pins Allocation

    WL865E4-P Module Hardware User Guide PINS ALLOCATION Pin-out The pin out table is shown below, the pins have been grouped for functional areas Signal Function Type Comment USB HS 2.0 COMMUNICATION PORT VUSB Power Supply for POWER VDD_BLE the internal USB transceiver.
  • Page 14 WL865E4-P Module Hardware User Guide Secure Digital Input Output (SDIO) SDIO_CLK/SPI_S_CLK SDIO card CLK VDD_VIO Slave SPI_S_CLK signal (PWM) SDIO_CMD/SPI_S_CS SDIO card VDD_VIO Slave SPI_S_CS Command signal (Active LOW) (PWM) SDIO_D3/SPI_S_MOSI SDIO card VDD_VIO Slave SPI_S_MOSI DAT[3] signal (PWM) SDIO_D2/USB_BOOT...
  • Page 15 WL865E4-P Module Hardware User Guide Miscellaneous Fuctions RESET# Hardware VDD_VIO Active LOW RESET / Power Disable GPIO_02/BT_PRIORITY GENERIC IO VDD_VIO BT_PRIORITY GPIO_05/DAC_OUT GENERIC IO VDD_VIO DAC_OUT1 GPIO_08/LF_CLK_IN GENERIC IO VDD_VIO External 32 kHz Clock Input or floating if not used.
  • Page 16 3.3 V Nominal Power Supply Ground Power Ground Power Ground Power Ground Power Ground Power Ground Power Ground Power Ground Power Ground Power Ground Power Ground Power Table 3 1: WL865E4-P Pinout Table 1VV0301580 Rev. 1 Page 16 of 52 2019-04-02...

  • Page 17: Pads Layout

    WL865E4-P Module Hardware User Guide Pads Layout The Figure 3-1 shows the pads layout configuration for the module (top view) Figure 3-1: Top View Pad Layout 1VV0301580 Rev. 1 Page 17 of 52 2019-04-02...

  • Page 18: Power Supply

    BLE TX TBD µA WIFI RX 2G4 TBD µA WIFI RX 5G TBD µA DTIM=1 TBD µA DTIM=3 TBD µA DTIM=5 TBD µA DTIM=10 TBD µA Table 4-2: WL865E4-P general power consumption table 1VV0301580 Rev. 1 Page 18 of 52 2019-04-02...
  • Page 19 54 Mbps BPSK MCS0_20 QPSK MCS1_20 QPSK MCS2_20 16 QAM MCS3_20 16 QAM MCS4_20 64 QAM MCS5_20 64 QAM MCS6_20 64 QAM MCS7_20 Table 4-3: WL865E4-P TX Table consumption @ 2.4 GHz 1VV0301580 Rev. 1 Page 19 of 52 2019-04-02...

  • Page 20: General Design Rules

    MCS6_20 64 QAM MCS7_20 Table 4-4: WL865E4-P TX Table consumption @5GHz General Design Rules It is recommended to make provision of at least 10 µF capacitors right next to the VDD_WLAN and VDD_BLE pins, and 2.2 µF at each of the other power supply pins like VDD_VIO and VUSB.

  • Page 21: Digital Section

    WL865E4-P Module Hardware User Guide DIGITAL SECTION Logic Levels Parameter Input level on any digital pin -0.3 V VDD_VIO + 0.3 V Levels with VDD_VIO = 3.3V Input high level 2.4 V 3.6 V Input low level -0.3 V 0.3 V Output high level 3.0 V...

  • Page 22: Power Up/Down Sequence

    Rise time of the power to 90% of final voltage Minimum time before RESET# is de-asserted µs Table 5-2: WL865E4-P Power on Reset Table Unconditional Shutdown The RESET# is used for unconditional Hardware RESET. Connect to the RESET# pin a PU resistor of 10 kΩ to VDD_VIO.

  • Page 23: Low Speed Uart

    WL865E4-P Module Hardware User Guide Property High Speed UART Configuration Baud rate 115200 bps, no auto-baud rate detection, can be changed by the host up to 3 Mbps using a special command Data bits 8 bits Flow control CTS/RTS Parity...

  • Page 24: Spi

    WL865E4-P Module Hardware User Guide 5.4.4. Two general-purpose SPI interfaces. One is configured as dedicated master and one configured as master or slave pin-mux with SDIO interface pins. • Interface clock frequency up to 48 MHz 5.4.5. The I2C Master/Salve interface has weak internal pull-up. If necessary add external ones of 10 kΩ...

  • Page 25: Adc / Dac Converter

    Output GPIO_20 JTAG_TMS Output GPIO_21 JTAG_TDI Input Table 5-5: WL865E4-P GPIO Alternate Function ADC / DAC Converter GPIO_15, GPIO_16 and GPIO_17 can be reprogrammed to be ADC if VDD_VIO is powered with 1.8V. Main ADC characteristic are: • 12-bit ADC up to 1 Msps •...

  • Page 26: Special Functions

    • WAKEUP (GPIO_01), input used to wakeup the Processor from Sleep mode. WL865E4-P has a 3 wire PTA coexistence algorithm between WIFI and BLE. Packet Traffic Arbiter (PTA) is a dedicated hardware System-on-Chip (SoC) block that controls access of Wi-Fi and Bluetooth devices to the antenna. It does this through pre- programmed priority of packet transmissions and receptions, controlled through hardware signaling.

  • Page 27: Rf Section

    Frequency Range (GHz) Channel spacing (MHz) 2.412 ≤ Fc ≤ 2.484 WIFI 2.4 GHz 5.000 ≤ Fc ≤ 5.925 WIFI 5 GHz Table 6-1: WL865E4-P supported Frequency Bands for WIFI 6.1.2. BlueTooth Technology Frequency Range (GHz) Channel Number (k) 2.4 ≤ F ≤ 2.4835 BLE 5 Fc=2402 + k ×...

  • Page 28: Tx Output Power

    MCS1_20 -15,6 QPSK MCS2_20 -16.0 16 QAM MCS3_20 -21,4 16 QAM MCS4_20 -21,5 64 QAM MCS5_20 -23,8 64 QAM MCS6_20 -27.0 64 QAM MCS7_20 -28,6 Table 6-3: WL865E4-P IEEE 802.11 EVM @2.4GHz 1VV0301580 Rev. 1 Page 28 of 52 2019-04-02...

  • Page 29: Ghz

    MCS1_20 -17.0 QPSK MCS2_20 -17.6 16 QAM MCS3_20 -25.2 16 QAM MCS4_20 -28.7 64 QAM MCS5_20 -28.6 64 QAM MCS6_20 -30.3 64 QAM MCS7_20 -30.5 Table 6-4: WL865E4-P IEEE 802.11 EVM @5GHz 1VV0301580 Rev. 1 Page 29 of 52 2019-04-02...

  • Page 30: Bluetooth

    BLE Transmit power with at RF output Pad at 25 °C Packet Type Channel Number Output Power (dBm) LE 1M LE 2M Table 6-5: WL865E4-P BLE transmit power RX Sensitivity 6.3.1. WIFI 6.3.1.1. 2.4 GHz WIFI 2G4 RX Sensibility Tested at RF output Pad at 25 °C...

  • Page 31: Ghz

    WL865E4-P Module Hardware User Guide QPSK MCS2_20 -89.0 16 QAM MCS3_20 -85.0 16 QAM MCS4_20 -81.5 64 QAM MCS5_20 -77.2 64 QAM MCS6_20 -75.4 64 QAM MCS7_20 -73.8 Table 6-6: WL865E4-P Sensitivity @2.4GHz 6.3.1.2. 5 GHz WIFI 5G RX Sensibility Tested at RF output Pad at 25 °C...

  • Page 32: Bluetooth

    RF performance degradation, and infringements of emission limits, may arise if the following recommendations are not respected. A 50Ω antenna is required. Telit’s WL865E4-P interface features an SMA connector for an external antenna, but other antenna integrated choices are possible, such as a chip or a printed one.

  • Page 33: Pcb Design Guidelines

    WL865E4-P Module Hardware User Guide PCB Design Guidelines 6.6.1. PCB General Guidelines The Ground of the PCB or Chip RF antenna is part of antenna when using a monopole, especially the part that lies in front of the monopole. Leave a wide ground area, without components and tracks, in front of antenna on all layers.

  • Page 34: Rf Pcb Guidelines

    6.6.2. RF PCB Guidelines The WL865E4-P module provides a 50 Ω antenna pad, which has to be routed to the antenna connector (or the integrated antenna) by means of a transmission line. Keep as close ad possible to 50 Ω impedance in the RF track including the RF Pad. It is important to make RF trace equal or wider than the Pad width to avoid step impedance.
  • Page 35 WL865E4-P Module Hardware User Guide The PCB width and size depend on the stackup and on the structure that you’re going to realize. As an example of a possible implementation, the details of the antenna trace on the WL865 interface board are described in this section.

  • Page 36: Pcb Guidelines In Case Of Fcc Certification

    WL865E4-P Module Hardware User Guide Please pay attention to cut the GND plane close to the Antenna pad, otherwise you can change drastically the impedance value. To give you an idea in Figure 6-3 we are showing the RF track used in our EVB.

  • Page 37: Audio Section

    WL865E4-P Module Hardware User Guide AUDIO SECTION Electrical Characteristics The audio interface is only digital, through the I2S. The voltage of this interface pins have same electrical characteristics as for digital pins and are related to the power bank VDD_VIO.

  • Page 38: Mechanical Design

    WL865E4-P Module Hardware User Guide MECHANICAL DESIGN Drawing Figure 8-1: WL865E4-P Top and bottom side mechanical Drawing 1VV0301580 Rev. 1 Page 38 of 52 2019-04-02...
  • Page 39 WL865E4-P Module Hardware User Guide Figure 8-2: WL865E4-P side view 1VV0301580 Rev. 1 Page 39 of 52 2019-04-02...

  • Page 40: Application Pcb Design

    WL865E4-P Module Hardware User Guide APPLICATION PCB DESIGN Footprint Figure 9-1: WL865E4-P recommended footprint PCB pad design Non solder mask defined (NSMD) type is recommended for the solder pads on the PCB. Figure 9-2: SMD and NSMD PAD 1VV0301580 Rev. 1...

  • Page 41: Pcb Pad Dimensions

    WL865E4-P Module Hardware User Guide PCB pad dimensions It is not recommended to place via or micro-via not covered by solder resist in an area of 0.3 mm around the pads unless it carries the same signal of the pad itself (see following figure).

  • Page 42: Solder Reflow

    WL865E4-P Module Hardware User Guide 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 Figure 9-4: Solder Reflow profile Profile Feature Pb-Free Assembly Average ramp-up rate (TL to TP) 3°C/s max...
  • Page 43 WL865E4-P Module Hardware User Guide Tip or Information – All temperatures refer to topside of the package, measured on the package body surface. Caution or Warning –WL865E4-P module withstands one reflow process only. Warning: The above solder reflow profile represents the typical SAC reflow limits and does not guarantee adequate adherence of the module to the customer application throughout the temperature range.

  • Page 44: Packaging

    WL865E4-P Module Hardware User Guide PACKAGING Tray The WL865E4-P modules are packaged on trays of 50 pieces each when small quantities are required (i.e. for test and evaluation purposes). Trays are not designed to be used in SMT processes for pick and place handling.

  • Page 45: Moisture Sensitivity

    WL865E4-P Module Hardware User Guide Caution or Warning –These trays can withstand at the maximum temperature of 65°C. 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.

  • Page 46: Conformity Assessment Issues

    WL865E4-P Module Hardware User Guide CONFORMITY ASSESSMENT ISSUES FCC/IC Regulatory notices 1VV0301580 Rev. 1 Page 46 of 52 2019-04-02...

  • Page 47: Safety Recommendations

    WL865E4-P Module Hardware 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: •...

  • Page 48: Acronyms

    WL865E4-P Module Hardware User Guide ACRONYMS Telit Technical Support Centre TTSC Universal Serial Bus High Speed Universal Asynchronous Receiver Transmitter UART Bluetooth low energy Serial Peripheral Interface Inter Integrated Circuit Integrated Interchip Sound Analog – Digital Converter Digital – Analog Converter...
  • Page 49 WL865E4-P Module Hardware User Guide 1VV0301580 Rev. 1 Page 49 of 52 2019-04-02...

  • Page 50: Document History

    WL865E4-P Module Hardware User Guide DOCUMENT HISTORY Revision Date Changes 2017-12-15 First issue 2019-04-02 General Review of all chapters 1VV0301580 Rev. 1 Page 50 of 52 2019-04-02...
  • Page 51 WL865E4-P Module Hardware User Guide 1VV0301580 Rev. 1 Page 51 of 52 2019-04-02...
  • Page 52 Mod. 0805 2017-01 Rev.6...

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