Fibocom NL668-LA Series Hardware Manual
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Fibocom NL668-LA Series Hardware Manual

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FIBOCOM NL668-LA Series
Hardware Guide
Version: V1.0.9
Date: 2022-03-29
Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
FIBOCOM NL668-LA Series Hardware Guide
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Summary of Contents for Fibocom NL668-LA Series

  • Page 1 FIBOCOM NL668-LA Series Hardware Guide Version: V1.0.9 Date: 2022-03-29 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 1 of 61...
  • Page 2 Applicability Type Product Model Description NL668-LA MCP is 4Gbit Flash + 2Gbit RAM, support MAIN_ANT, DIV_ANT Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 2 of 61...
  • Page 3 Trademark The trademark is registered and owned by Fibocom Wireless Inc. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 3 of 61...
  • Page 4 Liu Qiang Li Xiyi 2019-07-09 Update RF parameters Guojiang Chen V1.0.0 Gao Ying Tu Min 2019-06-06 Initial version Guojiang Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 4 of 61...

  • Page 5: Table Of Contents

    (U)SIM Card Connector Without Detection Signal ..............32 5.3.3 (U)SIM Hot Plug ......................... 32 5.3.4 (U)SIM Design Requirements .................... 33 USB Interface ......................34 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 5 of 61...
  • Page 6 Limiting Voltage Range ....................50 8.1.1 Absolute Voltage Range ..................... 50 8.1.2 Operating Voltage Range ....................50 Environment Temperature Range ................50 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 6 of 61...
  • Page 7 Carrier and storage ..................... 54 Regulatory ......................55 Terms and Acronyms ................... 59 11.1 Related Documents ....................60 11.2 Reference Standards ....................61 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 7 of 61...

  • Page 8: Introduction

    Product manufacturers need to communicate the following safety instructions to end users. In case of failure to comply with these safety rules, Fibocom Wireless will not be responsible for the consequences caused by the user’s misuse.
  • Page 9 There is a safety hazard in operating electronic equipment in any potentially explosive environment. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 9 of 61...

  • Page 10: Product Overview

    2 Product Overview 2.1 Product Introduction The NL668-LA series wireless module is a broadband wireless terminal product applicable to various network formats and multi-bands include FDD-LTE/WCDMA. 2.2 Product Specification Table 2-1 Product specification Specification LTE FDD: Band 1, 2, 3, 4, 5, 7, 8, 20, 28...

  • Page 11: Functional Diagram

    DFOTA upgrade. 3. The data version does not support voice services, but the voice version supports voice services. 2.3 Functional Diagram Functional diagram shows the main hardware features of the NL668-LA series module, including baseband and RF features. Baseband includes: ...

  • Page 12: Evaluation Board

    Note: Nl668-LA-05/10/30/31/40 models use EVB-LGA-F01,ADP-NL668-CN-30-00 development board; Nl668-LA-00/01 models use the EVK-GT8230-NL, ADP-NL668-LA development board. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 12 of 61...

  • Page 13: Pin Description

    3 Pin Description 3.1 Pin Assignment The NL668-LA series module is available in 144 pins. The numbers of the LCC pins are 80, and the LGA pins are 64. the top view of the pin assignment is shown as follow figure:...
  • Page 14 Digital output Power input Power output Analog input Analog output Open drain Open collector The pin function description of NL668-LA series module is shown as table 3-2: Table 3-2 Pin function description Pin No. Pin Name Level Description min=-0.3V External device wake-up module, low max=0.6V...
  • Page 15 (U)SIM clock signal For 3.0V (U)SIM: max=0.45V min=2.55V For 1.8V (U)SIM: max=0.45V USIM_RST (U)SIM reset signal min=1.35V For 3.0V (U)SIM: Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 15 of 61...
  • Page 16 PCM_CLK PCM clock signal max=0.6V min=1.2V max=2.0V SDC2_DATA3 Reserved SDC2_DATA2 Reserved SDC2_DATA1 Reserved SDC2_DATA0 Reserved SDC2_CLK Reserved Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 16 of 61...
  • Page 17 RF power input (3.3V~4.3V) Vnorm=3.8V Vmax=4.3V VBAT_BB Vmin=3.3V Baseband power input（3.3V~4.3V） Vnorm=3.8V Vmax=4.3V VBAT_BB Vmin=3.3V Baseband Power Input (3.3V~4.3V) Vnorm=3.8V Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 17 of 61...
  • Page 18 USB differential data bus (-) specification Vmax=5.25V USB_VBUS Vmin=3.8V USB plug detection Vnorm=5.0V 72,76 Ground 73~75,77 RESERVED Reserved 85~112 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 18 of 61...
  • Page 19 Reserved (Do not pull up) Reserved Reserved (Do not pull up) BT_EN Reserved Reserved RESERVED Reserved RESERVED Reserved RESERVED Reserved RESERVED Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 19 of 61...
  • Page 20 Note: Keep the unused pins floating. The reserved pins are in development. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 20 of 61...

  • Page 21: Electrical Characteristics

    In the rest of the document, VBAT includes VBAT_BB and VBAT_RF. 4.2 Power Supply The NL668-LA series module needs to be powered by the VBAT pin. The recommend power design is shown in Figure 4-1: Figure 4-1 Recommend power design Reproduction forbidden without Fibocom Wireless Inc.

  • Page 22: Output

    4.3 1.8V Output The NL668-LA series module outputs a 1.8V voltage through the VDD_EXT for the use of the internal digital circuit of module. The voltage is the logic level of the module and can be used to indicate module Reproduction forbidden without Fibocom Wireless Inc.

  • Page 23: Power Consumption

    1.71 1.89 4.4 Power Consumption The power consumption of NL668-LA series module measured at 3.8V power supply is shown as follow table, for USB sleep and USB wakeup AT commands please refer to 6.1.2 section: Table 4-4 Power consumption Parameter...
  • Page 24 LTE FDD Data transfer Band 8 @+23dBm LTE FDD Data transfer Band 20 @+23dBm LTE FDD Data transfer Band 28 @+23dBm Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 24 of 61...

  • Page 25: Functional Interface

    5.1.1 Power On/Off 5.1.1.1 Power On When NL668-LA series module in power off mode, pull down PWRKEY pin 100ms to 2s, the module will power on, it is recommended to use OC/OD drive circuit to control PWRKEY pin. The OC drive reference...

  • Page 26: Power Off

    VBAT enable and pull down PWRKEY pin at least 30ms. 5.1.1.2 Power Off The module supports three power off methods as table 5-2. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 26 of 61...

  • Page 27: Reset

    Reset Method Hardware reset Pull down RESET_N pin 700s to 1s, then release it Sent AT commands AT+RESET Software reset Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 27 of 61...
  • Page 28 Figure 5-5 OC driven reset reference circuit Figure 5-6 Button reset reference circuit The reset timing is shown as follows: Figure 5-7 Reset timing Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 28 of 61...

  • Page 29: Network Status Indicate Interface

    5.2 Network Status Indicate Interface NL668-LA series module provides three network status indicate pins. Pin 5 is network status indicator by default, AT commands AT+LEDCFG can switch to pin6 or pin61, table 5-4 is the pin definition. Table 5-4 Network status indicator PIN Name PIN No.

  • Page 30: U)Sim Card Interface

    Figure 5-8 Network indicator light reference circuits 5.3 (U)SIM Card Interface NL668-LA series module has built-in (U)SIM card interface, and supports 1.8V and 3.0V (U)SIM card. 5.3.1 (U)SIM Pin Definition (U)SIM pin definition is shown in the following table: Table 5-6 (U)SIM card pin Pin name Pin No.
  • Page 31 POL are disconnected when there is no card. The following is the reference design circuit, (U)SIM card insert, USIM_PRESENCE pin is high level; (U)SIM card pull out, USIM_PRESENCE pin is low level. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide...

  • Page 32: U)Sim Card Connector Without Detection Signal

    Figure 5-11 (U)SIM card connector without detection signal reference circuit 5.3.3 (U)SIM Hot Plug NL668-LA series module support (U)SIM hot plug function, it determines the insertion and removal of (U)SIM card by detect the USIM_ PRESENCE pin state. The card hot plug function can be configured by the “AT+MSMPD” command, and the AT commands are...

  • Page 33: U)Sim Design Requirements

    The length of cable from the module to the (U)SIM card connector shall not exceed 100mm. Longer cable reduces signal quality. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 33 of 61...

  • Page 34: Usb Interface

    USIM_DATA should pull up to USIM_VDD with a 10K resistor. 5.4 USB Interface 5.4.1 USB Pin Definition NL668-LA series module support USB2.0, compatible with USB High-Speed(480Mbits/s) and USB Full-Speed(12Mbits/s). module USB bus timing and electrical characteristics refer to Universal Serial Bus Specification 2.0.

  • Page 35: Uart Interface

    Module Transmit data 5.5.2 UART Port Application The serial port level of NL668-LA series module is 1.8V, if the level of the client host system is 3.3V or other, level needed between the module and the host. The reference design circuit of level...

  • Page 36: Adc Interface

    Level translate circuits is not suitable for applications of baud rates above 460Kbps. 5.6 ADC Interface NL668-LA series module support two channels ADC interface. Use AT+MMAD command can read the value of ADC interface. The voltage range of ADC interface is 0.3V to VBAT_BB.

  • Page 37: Pcm Interface

    Analog to digital converter interface 0 ADC1 Analog to digital converter interface 1 5.7 PCM Interface NL668-LA series module provides a PCM interface for communication with digital audio devices such as an external CODEC. 5.7.1 Supported Model Table 5-13 Supported model of PCM...

  • Page 38: Pcm Interface Description

    Short pulse Signal (Falling edge sampling) NL668-LA series module adopts the above configuration by default, any adjustment please contact Fibocom Wireless technical support. 5.7.4 PCM Signal Description The PCM signal of NL668-LA series module adopts domestic mainstream Europe E1 standard.
  • Page 39 Delay from PCM_CLK rising – – t(pdout) PCM_DOUT valid Delay from PCM_CLK falling – – t(zdout) PCM_DOUT high impedance Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 39 of 61...

  • Page 40: Low Power Consumption

    AT+GTUSBSLEEPEN=1,0 command to set USB sleep mode. Draw out the USB cable or disable the USB HUB controller, module enter sleep mode. Wake up: Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 40 of 61...

  • Page 41: Usb Application (Nonsupport Usb Suspend, Nonsupport Vbus)

    Sent AT+GTLPMMODE=1,X command to set et the WAKEUP_IN pin’s level of control module enter sleep mode. Reset module, command effective. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 41 of 61...

  • Page 42: Uart Application (Dtr Pin Level Control)

    Pin control to enter sleep mode. When ATS24 command enter sleep mode countdown, it isn’t entering sleep mode once Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide...
  • Page 43 If you want to use the RI signal to represent the state of the module, please refer to the AT+GTWAKE command in FIBOCOM AT Commands _Sleep. For more sleep command description, please refer to FIBOCOM AT Commands _Sleep Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.

  • Page 44: Rf Interface

    7 RF Interface NL668-LA series module has ANT_MAIN, ANT_DIV and ANT_ GNSS(LA-01 / LA-31 without GNSS) antenna interfaces, its pin definition is shown as table 7-1: Table 7-1 RF Interface Pin Name Pin No. Description ANT_DIV Diversity antenna ANT_GNSS GPS antenna...

  • Page 45: Receive Sensitivity

    Band 4 -98.5 LTE FDD Band 5 -98.5 -99.5 Band 7 -97.5 Band 8 -99.5 Band 20 Band 28 -97.5 Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 45 of 61...

  • Page 46: Gnss Receiver

    7.4 GNSS Receiver 7.4.1 GNSS Specification NL668-LA series module (except NL668-LA-01, NL668-LA-31-90) supports GNSS function and adopts Qualcomm Gen8 technology, its specification show as follows: Table 7-5 GNSS specification Description Condition Typ. GNSS 62mA fixing Power GNSS tracking 62mA （AT+CFUN=0）...
  • Page 47 WCDMA band 2 (1900): 140 MHz Bandwidth (WCDMA) WCDMA band 5 (800): 70 MHz WCDMA band 8 (900): 80 MHz Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 47 of 61...

  • Page 48: Antenna Reference Design

    In addition, the RF cable connect with antenna, and the location of the fixed antenna also may affect its performance. NL668-LA series module’s three antenna all led by welding plate. recommended clients use the U.FL-R-SMT-1 antenna connector and corresponding match adapter cable.
  • Page 49 Ground around antenna must be keep connect with main ground.  For more design information please refer to FIBOCOM Design Guide_Antenna. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 49 of 61...

  • Page 50: Reliability

    The limiting voltage range is maximum voltage range that power supply and digital or analog input/output interfaces can withstand. 8.1.1 Absolute Voltage Range The absolute voltage range of NL668-LA series module is shown as table 8-1. Table 8-1 Absolute voltage range Parameter description Typ.

  • Page 51: Environmental Reliability Requirements

    30 times of insertion/removal for RF antenna interface cable 8.4 ESD Characteristics NL668-LA series module design has considered ESD issue and provided ESD protect measurements, but take ESD issue taken by module carrier and secondary development into consideration, developers should care ESD protection of module application terminal. In addition to considering anti-static treatment of packaging, please refer to recommended circuit of interface design in the document.
  • Page 52 Air Discharge Contact Discharge ± 10KV ± 5KV Antenna port ± 8KV ± 4KV Other port ± 1KV ± 0.5KV Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 52 of 61...

  • Page 53: Structure Specification

    9 Structure Specification 9.1 Product Appearance The product appearance of NL668-LA series module is shown in Figure 9-1: Figure 9-1 Product appearance 9.2 Structure Dimension The structure dimension of NL668-LA series module is shown as Figure 9-2: Figure 9-2 Structure dimension (unit: mm) Reproduction forbidden without Fibocom Wireless Inc.

  • Page 54: Pcb Soldering Pad And Stencil Design

    9.3 PCB Soldering Pad and Stencil Design PCB soldering pad and stencil design please refer to FIBOCOM NL668 LCC SMT Design Guide. 9.4 SMT SMT production process parameters and related requirements please refer to FIBOCOM NL668 LCC SMT Design Guide.

  • Page 55: Regulatory

    CE Conformance information The device could be used with a separation distance of 20cm to the human body. Hereby, [Fibocom Wireless Inc.] declares that the radio equipment type [NL668-LA] is in compliance with Directive 2014/53/EU. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
  • Page 56 Important Note notice that any deviation(s) from the defined parameters of the antenna trace, as described by the instructions, require that the host product manufacturer must notify to Fibocom wires Inc. that they wish to change the antenna trace design. In this case, a Class II permissive change application is required to be filed by the USI, or the host manufacturer can take responsibility through the change in FCC ID (new application) procedure followed by a Class II permissive change application.
  • Page 57 This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide...
  • Page 58 This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance cm between the radiator & your body. Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 58 of 61...

  • Page 59: Terms And Acronyms

    QPSK Quadrature Phase Shift Keying Radio Frequency RHCP Right Hand Circularly Polarized RMS Root Mean Square Real Time Clock Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 59 of 61...

  • Page 60: Related Documents

    FIBOCOM ADP-NL668-LA Evaluation Board Instructions  FIBOCOM NL668 LCC SMT Design Guide  FIBOCOM Design Guide_RF Antenna  FIBOCOM NL668 AT Commands Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide Page 60 of 61...

  • Page 61: Reference Standards

    3GPP TS 27.005 V10.0.1: Use of Data Terminal Equipment - Data Circuit terminating Equipment (DTE - DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS) Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved. FIBOCOM NL668-LA Series Hardware Guide...

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