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L816-AM Hardware User Manual
Version: 2.0.4
Update date: 2016.09.18
Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
L816-AM Hardware User Manual
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Summary of Contents for Fibocom L816-AM

  • Page 1 L816-AM Hardware User Manual Version: 2.0.4 Update date: 2016.09.18 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 1 of 42...
  • Page 2 Applicability Table Product model Description L816-AM Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 2 of 42...
  • Page 3 Sections describe modifications V2.0.1 2016-07-19 V2.0.2 2016-07-26 Modified description V2.0.3 2016-07-28 Update part chart Add product certification of warnings V2.0.4 2016-09-18 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 3 of 42...
  • Page 4: Table Of Contents

    3.5.2 USIM Interface Circuit........................28 3.5.2.1 N.C. SIM Card Slot........................28 3.5.2.2 N.O. SIM Card Slot........................28 3.5.3 USIM Hot-Plugging..........................29 3.5.4 USIM Design............................ 30 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 4 of 42...
  • Page 5 5.5 Storage..............................42 5.5.1 Storage Life............................42 5.5.2 Workshop Life..........................42 5.5.3 Recommended baking standards:....................42 5.6 Packing..............................42 5.6.1 Tray Package............................42 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 5 of 42...
  • Page 6: Foreword

    Introduction The document describes the electrical characteristics, RF performance, dimensions and application environment, etc. of L816-AM-00 (hereinafter referred to as L816-AM). With the assistance of the document and other instructions, the developers can quickly understand the hardware functions of L816-AM modules and develop products.
  • Page 7: Overview

    2 Overview Introduction The L816-AM module are highly integrated 4G wireless communication LGA modules, which supports LTE FDD/WCDMA/GSM systems (3 modes and 7 bands). Specification Specification LTE FDD: Band II,IV, XII WCDMA/HSPA+: Band I,II,V(VI),VIII Operating Band GSM/GPRS/EDGE: 850/900/1800/1900MHz Rel.9, 10Mbps DL/5Mbps UL (Cat 1)
  • Page 8: Warnings

    Firmware update USB 2.3 Warnings 2.3.1 CE Statement EU Regulatory Conformance: Hereby, We, FIBOCOM Wireless Inc. declares that this device L816-AM is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC. CE 0560 R&TTE Regulation: In all cases assessment of the final product must be mass against the Essential requirements of the R&TTE Directive Articles 3.1(a) and (b), safety and EMC respectively, as well as any relevant Article 3.2...
  • Page 9 FCC ID can not be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 9 of 42...
  • Page 10 La fonction de sélection de l'indicatif du pays est désactivée pour les produits commercialisés aux  États-Unis et au Canada. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 10 of 42...
  • Page 11: Application Framework

    Cet équipement doit être installé et utilisé avec un minimum de 20 cm de distance entre la source de rayonnement et votre corps. Application Framework The peripheral applications for L816-AM module are shown in Figure 2-1: Figure2-1 Application Framework Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
  • Page 12: Hardware Framework

    Hardware Framework The hardware framework in Figure 2-2 shows the main hardware functions of L816-AM module, including base band and RF functions. Baseband contains the followings: GSM/UMTS/LTE FDD controller/Power supply  NAND+LPDDR2 RAM  Application interface  RF contains the followings: RF Transceiver ...
  • Page 13: Application Interface

    3 Application Interface LGA Interface The L816-AM module applies LGA packaging, with a total of 115 pins. 3.1.1 Pin Distribution Figure 3-1 Pin Map (TOP Perspective View) Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual...
  • Page 14: Pin Definition

    PA_Blanking PA_Blanking output CMOS 1.8V GPIO_Modem Reserved CMOS 1.8V Wakeup_Host Wakeup_Host output Main_ANT Main antenna DIV_ANT Diversity antenna ANT Tunable Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 14 of 42...
  • Page 15 Power input Power supply VBAT_TR Power input Power supply Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 15 of 42...
  • Page 16 Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Ground Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 16 of 42...
  • Page 17 TG24 Thermal Ground Ground TG25 Thermal Ground Ground TG26 Thermal Ground Ground TG27 Thermal Ground Ground TG28 Thermal Ground Ground Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 17 of 42...
  • Page 18 Tri-State OD: Open Drain PP: Push-Pull PI: Power Input PO: Power Output Note: The unused pins can be left floating. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 18 of 42...
  • Page 19: Power Supply

    1.8V/3V 3.2.1 Power Supply The L816-AM module should be powered through the VBAT pins, and the power supply design is shown in Figure 3-2: Figure 3-2 Power Supply Design Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
  • Page 20 The stable power supply can ensure the normal operation of L816-AM module; and the ripple of the power supply should be less than 165mV in design. When the module operates under GSM mode (Burst transmit), the maximum operating current can reach 2A, so the power source should be not lower than 3.135V, or the module may shut down or reboot.
  • Page 21: Power Consumption

    3.2.2 Power Consumption In the case of 3.8V power supply, the power consumption for L816-AM module is shown in the following table: Parameter Mode Condition Average Current(mA) Power off Power supply, module power off GPRS MFRMS=5 WCDMA DRX=8 Idle LTE FDD...
  • Page 22: Control Signal

    LTE FDD Data transfer Band 4 @+23dBm LTE FDD LTE-RMS LTE FDD Data transfer Band 12 @+23dBm 3.3 Control Signal The L816-AM module provides two control signals to execute the power on/off and reset operations, the pin definition is as follows: Pin Name Reset Value Functions Type Power on/off signal with internal 200KΩ...
  • Page 23: Start-Up Timing

    After powering on, the module will start-up by pulling up the Power_On/Off signal for more than 20ms (100ms is recommended).The start-up timing is shown in Figure 3-6: Figure 3-6 Timing Control for Start-up Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 23 of 42...
  • Page 24: Module Shutdown

    +3.3V power supply. If the VBAT power supply is already stable before starting up the module, the delay time can be ignored. 3.3.2 Module Shutdown The L816-AM module can be shut down by software or hardware control. Control mode Action Condition...
  • Page 25: Module Reset

    3.3.3 Module Reset The L816-AM module can reset to its initial status by pulling down the Reset_N signal for more than 10ms (100ms is recommended), and the module will restart after the Reset_N signal is released. When the customer executes Reset_N function, the PMU remains its power inside the module. The recommended...
  • Page 26: Usb Interface

    USB Interface The L816-AM module supports USB 2.0 which is compatible with USB High-Speed (480 Mbit/s) and USB Full-Speed (12 Mbit/s). For the USB timing and electrical specification of L816-AM module, please refer to “Universal Serial Bus Specification 2.0”. 3.4.1...
  • Page 27: Usim Interface

    USB_DN and USB_DP signal lines should be routed on the layer that is next to the ground layer,  and be wrapped with GND on both sides and layers. USIM Interface The L816-AM module has a built-in USIM card interface, which supports 1.8V and 3V SIM cards. 3.5.1 USIM Pins The USIM pins are described as follows:...
  • Page 28: Usim Interface Circuit

    The reference circuit design for N.O. (Normally Open) SIM card slot is shown in Figure 3-12: Figure 3-12 Reference Circuit for N.O. SIM Card Slot Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual...
  • Page 29: Usim Hot-Plugging

    3.5.3 USIM Hot-Plugging The L816-AM module supports the SIM card hot-plugging detection function, which determines whether the SIM card is inserted or detached by detecting the SIM1_CD pin state of the SIM card slot. The SIM card hot-plugging detection function can be configured by “AT+MSMPD” command, and the...
  • Page 30: Usim Design

    The filter capacitors and ESD devices for SIM card signals should be placed near to the SIM  card slot, and the ESD devices with 22~33pF capacitance should be used. GPIO The L816-AM module provides four signals to indicate the operating status of the module, the status indicator pins are as follows: Pin Name Reset Value...
  • Page 31: Fw_Ready

    Pull high 100ms then pull low (pulse signal). Idle/Sleep low level Wakeup_Host timing is shown in Figure 3-14: Figure 3-14 Wakeup_Host Timing Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 31 of 42...
  • Page 32: Pa_Blanking

    Output the pulse signals that synchronize with the GSM burst TX. PA_BLANKING timing is shown in Figure 3-15: Figure 3-15 PA_Blanking Timing Interrupt Control The L816-AM module provides four interrupt signals, and the pin definition is as follows: Pin Name Reset Value Pin Description...
  • Page 33: Bodysar

    3.7.2 BodySar The L816-AM module supports the BodySar detection function. The voltage level is high by default for BodySar, and when the SAR sensor detects the closing human body, the BodySar signal will be pulled down. As the result, the module then lowers down its emission power to its default threshold value, thus reducing the RF radiation on the human body.
  • Page 34: Rf Interface

    4 RF Interface Operating Band The L816-AM module provides main and diversity antenna interfaces; main antenna is used to transmit and receive RF signals, and the diversity antenna is only used to receive RF signals. The operating bands of the antennas are as follows:...
  • Page 35: Receiver Sensitivity

    Band 4 23±1dBm 10MHz Bandwidth, 1 RB LTE FDD Band 12 23±1dBm 10MHz Bandwidth, 1 RB Receiver Sensitivity The receiver sensitivity for each band of the L816-AM module is as follows: Mode Band Rx Sensitivity(dbm)-typical Note GSM850 BLER<10% GSM900 BLER<10%...
  • Page 36: Rf Pcb Design

    Since L816-AM is an LTE module, dual antennas should be applied to meet the performance requirements. The L816-AM module does not provide RF connector itself, so routing RF traces are required for the connection with RF connectors or antenna feed points on the application mainboard. It is recommended to use the microstrip line for RF trace, with the insertion loss controlled within 0.2dB and impedance...
  • Page 37: Antenna Design

    Antenna Design 4.5.1 Antenna Design Requirements The L816-AM module provides Main and Diversity antenna interfaces, and the antenna design requirements are as follows: Main antenna requirements for L816-AM module Frequency range The most proper antenna to adapt the frequencies should be used.
  • Page 38: Structure Specification

    5 Structure Specification 5.1 Product Appearance The product appearance for L816-AM module is shown in Figure 5-1: Figure 5-1 Module Appearance Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 38 of 42...
  • Page 39: Dimension Of Structure

    Dimension of Structure The structural dimension of the L816-AM module is shown in Figure 5-2: Figure 5-2 Dimension of Structure Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. L816-AM Hardware User Manual Page 39 of 42...
  • Page 40: Recommended Design For Pcb Bonding Pad

    Recommended Design for PCB Bonding Pad Recommended Design for PCB Bonding Pad of the L816-AM module is shown in Figure 5-3 Figure5-3 Recommended Design for PCB Bonding Pad (Unit: mm) Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
  • Page 41: Smt Paster

    SMT Paster SMT Paster of the L816-AM module is shown in Figure Figure5-4 Please refer to L816-AM SMT Application Design Specification ≥0.12mm Stencil thickness Figure5-4 Recommended Design for stencil (Unit: mm) Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
  • Page 42: Storage

    Component tray can NOT be baked on high temperature, Need use high temperature tray baking  Packing The L816-AM module uses the tray sealed vacuum packing, combined with the outer packing method using the hard cartoon box, so that the storage, transportation and the usage of modules can be protected to the greatest extent.

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L816-am-00

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