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Table Of Contents

Draft

FIBOCOM L610-LA Hardware Guide

Version: V1.1.1

Date: 2020-05-29

Summary of content (49 pages)

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Draft FIBOCOM L610-LA Hardware Guide Version: V1.1.
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Applicability type No. Product model Description 1 L610-LA MAIN_ANT, FDD/TDD/GSM, WiFi-Scan, BT Reproduction forbidden without Fibocom Wireless Inc.
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Copyright Copyright ©2020 Fibocom Wireless Inc. All rights reserved. Without the prior written permission of the copyright holder, any company or individual is prohibited to excerpt, copy any part of or the entire document, or transmit the document in any form. Notice The document is subject to update from time to time owing to the product version upgrade or other reasons. Unless otherwise specified, the document only serves as the user guide.
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Versions Document Version V1.0.0 V1.0.1 V1.0.2 V1.0.3 V1.0.4 V1.0.5 V1.0.6 V1.0.7 V1.0.8 V1.0.9 V1.1.0 V1.1.
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Contents 1 2 3 Foreword...................................................................................................................................... 7 1.1 Introduction.................................................................................................................................. 7 1.2 Safety Instruction........................................................................................................................ 7 1.3 Reference Standard............................
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3.5.2 3.6 3.7 3.5.2.1 SIM Card Slot with Detection Signal..................................................................................................... 30 3.5.2.2 SIM Card Slot without Detection Signal................................................................................................32 3.5.3 USIM Hot Plug........................................................................................................................... 32 3.5.4 USIM Design Requirements...................
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1 Foreword 1.1 Introduction The document describes the electrical characteristics, RF performance, dimensions and application environment, etc. of L610 wireless modules. With the assistance of the document and other instructions, the developers can quickly understand the hardware functions of L610 modules and develop product hardware. 1.2 Safety Instruction By following the safety guidelines below, you can ensure your personal safety and help protect the product and work environment from potential damage.
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electronic devices. Keep the mobile device away from flammable gases. Turn off the mobile device when you get near to gas stations, oil depots, chemical plants or explosive workplaces. There are potential safety hazards when operating electronic equipment in any potentially explosive area. 1.3 Reference Standard This design of the product complies with the following standards:  3GPP TS 51.010-1 V10.5.0: Mobile Station (MS) conformance specification; Part 1: Conformance specification  3GPP TS 34.
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2 Product Overview 2.1 Product Introduction L610 modules are wideband wireless terminal products applicable to various network formats and multi-bands including FDD-LTE/GSM. The frequency band division of L610 series products is as follows: Band L610-LA LTE FDD Band 1,2,3,4,5,7,8,28,66 LTE TDD NO Support GSM 850/900/1800/1900 ANT Main+WIFI Built-in ESIM NO Support 2.
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Interface Antenna: main x 1, WIFI x 1 Antenna USIM 3.0V/1.8V Function USB 2.0 x 1 interface System status indication ADC*3 Software Protocol stack Embedded TCP/IP and UDP/IP protocol stack AT command 3GPP TS 27.007 and 27.005, and proprietary FIBOCOM AT Firmware update USB Voice service AMR, caller ID, call forwarding, call hold, call waiting and multi-party call, etc.
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Figure 2-2 Hardware diagram Reproduction forbidden without Fibocom Wireless Inc.
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3 Application Interface 3.1 LCC+LGA Interface L610 modules adopt LCC 80PIN+LGA 64PIN packaging, with a total of 144 pins. 3.1.1 Pin Distribution Figure 3-1 Pin Distribution Diagram (TOP plan perspective view) Note: “85-->112” is the thermal pin, and the module is grounded internally. It is recommended that the Reproduction forbidden without Fibocom Wireless Inc.
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heat sink pad is reserved for PCB packaging and welded. 3.1.2 Pin Definition The pins are defined as follows: Pin 1 2 3 Pin Name WAKEUP_IN AP_READY SLEEP_IND I/O Level I VILmin=-0.3V VILmax=0.63V VIHmin=1.2/2.2V VIHmax=2.0/2.8V* I VILmin=-0.3V VILmax=0.63V VIHmin=1.2/2.2V VIHmax=2.0/2.8V* O VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VILmin=-0.3V VILmax=0.63V VIHmin=1.2/2.2V VIHmax=2.0/2.8V* 4 W_DISABLE# I 5 NET_MODE O VOHmin=1.35V VOLmax=0.
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Pin Pin Name I/O Level Reset Value Description software shutdown detection function 14 USIM_VDD PO For 1.8V USIM: Vmax=1.9V Vmin=1.7V For 3.0V USIM: Vmax=3.05V Vmin=2.7V I/Omax=50mA USIM power supply For 1.8V USIM: VILmax=0.6V VIHmin=1.2V VOLmax=0.45V VOHmin=1.35V For 3.0V USIM: VILmax=1.0V VIHmin=1.95V VOLmax=0.45V VOHmin=2.55V For 1.8V USIM: VOLmax=0.45V VOHmin=1.35V For3.0V USIM: VOLmax=0.45V VOHmin=2.55V For 1.8V USIM: VOLmax=0.45V VOHmin=1.35V For 3.0V USIM: VOLmax=0.45V VOHmin=2.
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Pin Pin Name I/O Level VIHmin=1.2V VIHmax=2.0V 25 26 27 28 PCM_OUT PCM_SYNC PCM_CLK SDC2_DATA_3 O I/O I/O I/O I/O 29 SDC2_DATA_2 I/O 30 SDC2_DATA_1 I/O 31 SDC2_DATA_0 32 SDC2_CLK O VOLmax=0.45V VOHmin=1.35V VOLmax=0.45V VOHmin=1.35V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VOLmax=0.45V VOHmin=1.35V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VILmin=-0.3V VILmax=0.63V VIHmin=1.2/2.2V VIHmax=2.0/2.8V* VILmin=-0.3V VILmax=0.63V VIHmin=1.2/2.2V VIHmax=2.0/2.8V* VILmin=-0.
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Pin Pin Name I/O Level 36 GND G - 37 38 39 40 41 42 SPI_CS_N SPI_MOSI SPI_MISO SPI_CLK I2C_SCL I2C_SDA I I O O OD OD VOLmax=0.45V VOHmin=1.35V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VOLmax=0.45V VOHmin=1.35V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VOLmax=0.45V VOHmin=1.35V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VOLmax=0.45V VOHmin=1.35V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VOLmax=0.45V VOHmin=1.35V VILmin=-0.3V VILmax=0.6V VIHmin=1.
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Pin Pin Name I/O Level Reset Value Description floating when not in use Analog to digital converter interface 0 45 ADC0 I - Connect 1k in series when in use; left floating when not in use 46 GND G - Ground 47 NC - - NC 48 GND G - Ground 49 ANT_MAIN I/O - Main antenna 50 GND G - Ground 51 GND G - Ground 52 GND G - Ground 53 GND G - Ground 54 GND G - Ground 55 NC - - NC 56 GND G - Ground Vmax=4.2V Vmin=3.4V Vnorm=3.8V Vmax=4.2V Vmin=3.
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Pin 65 Pin Name CTS I/O I Level VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V 66 DTR* I 67 TXD O VOLmax=0.45V VOHmin=1.35V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V Reset Value L Description Module clear to send Left floating when not in use L DTE ready Left floating when not in use Module Transmit data Left floating when not in use Module Receive data 68 RXD I 69 USB_DP I/O 70 USB_DM I/O 71 USB_VBUS PI Vmax=5.
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Pin Pin Name I/O 81 KEYIN4 82 KEYIN5 83 KEYOUT0 84 KEYOUT1 85-112 GND G 113 KEYOUT2 I 114 KEYOUT3 I 115 USB_BOOT I 116 NC - 117 CLK26M_OUT O 118 NC - Value Description KEYIN4 Left floating when not in use I KEYIN5 Left floating when not in use I KEYOUT0 Left floating when not in use I KEYOUT1 Left floating when not in use LCD_FMARK O 120 LCD_RSTB O SPILCD_SEL Reset I 119 121 Level O 122 SPILCD_CS O 123 SPILCD_CLK O - Ground KEYOUT2 Left floating whe
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Pin 124 125 126 Pin Name SPILCD_SDC SPILCD_SI/O GPIO1 I/O O I/O I/O 127 PM_EN_WLAN O 128 NC - 129 130 131 132 133 SD1_DATA3 SD1_DATA2 SD1_DATA1 SD1_DATA0 SD1_CLK I/O I/O I/O I/O O 134 SD1_CMD I/O 135 WAKE_WLAN O Level VIHmax=2.0/2.8V* VILmin=-0.3V VILmax=0.63V VIHmin=1.2/2.2V VIHmax=2.0/2.8V* VILmin=-0.3V VILmax=0.63V VIHmin=1.2/2.2V VIHmax=2.0/2.8V* VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.
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Pin Pin Name I/O 136 WLAN_EN O 137 UART3_RXD I 138 UART3_TXD O 139 BT_EN O 140 NC - 141 I2C2_SCL I/O 142 I2C2_SDA I/O 143 RFCTL_1 I/O 144 RFCTL_2 I/O Level VIHmax=2.0V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.0V VILmin=-0.3V VILmax=0.6V VIHmin=1.2V VIHmax=2.
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3.2 Power Supply The power interfaces of L610 modules are shown in the following table: Pin Name I/O Pin Description VBAT_RF I 57,58 VBAT_BB I 59,60 VDD_EXT O 7 Voltage output, 1.8V GND - 8,9,19,22,36,46,48,50-54,56,85-112 Ground Module power supply, 3.4~4.2V, nominal value 3.8V Module power supply, 3.4~4.2V, nominal value 3.8V 3.2.1 Power Supply L610 modules need to be powered by the VBAT pin.
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Recommended Capacitor Application Description  Battery power can be properly reduced to 100~220uF capacitor Filter clock and digital signal 1uF,100nF Digital signal noise 33pF 700, 850/900 MHz band Filter low band RF interference 1700/1800/1900,2100/2300,2500/2600MHz Filter middle/high band RF band interference 8.2pF interference The power stability ensures the normal operation of L610 modules.
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Parameter Mode Condition Average Typ.Current(mA) Ioff Power off Module power off 0.013 Iidle Idle Idle(AT+cfun=0) 12 GSM MFRMS=5 2.3 LTE FDD Paging cycle #128 frames Isleep GSM IGSM-RMS IGPRS-RMS CS4 ILTE-RMS GPRS LTE FDD 2.
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Pin Name I/O Pin Description pull it high, the module is reset PWRKEY I 21 When pulling down for power on, the minimum duration of low level is 2s; when pulling down for power off, the minimum duration of low level is 3.1s 3.3.1 Module Power-on 3.3.1.1 Power-on Circuit Reference When L610 module is in powered-off mode, the module will power on by pulling down PWRKEY for at least 2s. It is recommended to use OC/OD drive circuit to control PWRKEY pin.
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3.3.1.2 Power-on Timing Figure 3-6 Power-on Timing Control Diagram Note: Before pulling down the PWRKEY pin, make sure that the VBAT voltage is stable. It is recommended that the interval between power up VBAT and pull down PWRKEY pin should not be less than 30ms. 3.3.1.3 Auto Power-on If the module is required to power on automatically, the PWRKEY pin can be directly connected to the ground. The module can only be shut down if it is powered off in this mode.
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3.3.2 Module Shutdown The module supports the following three shutdown modes: Shutdown Shutdown Method Applicable Scenario Mode Low voltage shutdown When VBAT voltage is too low or The module does not shut down through normal powers down, the module will shut process, i.e., does not log out from the base down station Hardware Pull down PWRKEY (for at least shutdown 3.1s) and then release AT shutdown AT+ CPWROFF Normal shutdown Software shutdown 1.
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3.3.3.1 Reset Circuit The reset reference circuit is shown in Figure 3-6. It is similar to the PWRKEY control circuit. The client can control the RESET_N pin using an OC/OD drive circuit or button. Figure 3-6 RESET_N OC/OD Reference Circuit Another reset control is shown in Figure 3-7: Figure 3-7 RESET_N Button Reference Circuit Reproduction forbidden without Fibocom Wireless Inc.
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3.3.3.2 RESET_N Control Timing Figure 3- 8 Reset Control Timing Note: RESET_N is a sensitive signal, so it is recommended to add a debouncing capacitor close to the module. PCB layout should be far away from the RF interference and grounded, and avoid routing on the edge and surface of PCB (to avoid module reset caused by ESD). 3.4 USB Interface L610 modules support USB 2.0 and are compatible with USB High-Speed (480Mbits/s) and USB Full-Speed (12Mbits/s). Refer to “Universal Serial Bus Specification 2.
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USB_DM/DP differential signal cable is required to be less than 1pF, and a 0.5pF TVS is recommended. It is recommended to connect a 0ohm resistor to USB_DM/DP differential line in series.
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Figure 3-9 SIM Card Slot Diagram SIM016-8P-220P Figure 3-10 Reference Design of L610 USIM/SIM Interface with Detection Signal Principles of SIM card slot with detection signal are as follows: When SIM is inserted, USIM_PRESENCE pin is high level; When SIM is not inserted, USIM_PRESENCE pin is low level. Reproduction forbidden without Fibocom Wireless Inc.
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3.5.2.2 SIM Card Slot without Detection Signal Figure 3-11 Reference Design of L610 USIM/SIM Interface without Detection Signal Note: SIM card slot has no detection signal, and the module USIM_ PRESENCE pin connects 10K to ground in series. In addition, disable SIM hot plug detection function through AT command. 3.5.3 USIM Hot Plug L610 modules support SIM hot plug function.
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information, the module will register on the network. When the USIM_PRESENCE is in low level, the module judges that the SIM is removed, then it will not read the SIM. Note: The USIM_PRESENCE is in active high by default, and can be switched to active low by AT command. AT Command Function Description AT+GTSET=”SIMPHASE”,1 Default, high level detection AT+GTSET=”SIMPHASE”,0 Low level detection 3.5.
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The following table describes the main serial port pin. Pin Name I/O Pin Description RI O 62 Module output ring indicator DCD O 63 Module output carrier detection RTS O 64 DTE request to send CTS I 65 Module clear to send DTR I 66 DTE ready TXD O 67 Module Transmit data RXD I 68 Module Receive data The following table describes UART3 pin.
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Figure 3-17 UART Signal Connection 1 Another level switching circuit is shown in the figure below. The input and output circuit design in the following dashed part can refer to that in the solid line part, but pay attention to the connection direction. Figure 3-18 UART Signal Connection 2 Note: This level switching circuit is not suitable for applications with baud rates above 460Kbps. 3.7 Status Indicator 3.7.1 NET_MODE Signal L610 modules provide three network indicator output signal interfaces.
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Pin Name I/O Pin Description NET_MODE O 5 Module status indicator NET_STATUS O 6 Reserved STATUS O 61 Reserved L610 module network indicator NET_MODE status description.
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3.8 Low Power Consumption Mode 3.8.1 Flight Mode W_DISABLE# pin description: Pin Name I/O W_DISABLE# I Pin Description 4 Module flight mode control L610 module supports two ways to enter the flight mode: Pull up or float (pull high by default) the 1 Hardware I/O interface button control W_DISABLE# signal to enter the normal mode, pull it down to enter the flight mode 2 AT command control AT+CFUN=4--enter the flight mode AT+CFUN=1--enter the normal mode 3.8.
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4 RF Interface 4.
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Mode Band Tx Power(dBm) Note Band 66 23+1/-3 10MHz Bandwidth, 1 RB 4.3 L610 RF Receiving sensitivity Mode LTE FDD Band Rx Sensitivity(dBm) Typical Note GSM 900 -109.5 BER < 2.43% DCS 1800 -108.0 BER < 2.43% Band 1 -98.0 10MHz Band width Band 2 -97.0 10MHz Band width Band 3 -98.0 10MHz Band width Band 4 -97.0 10MHz Band width Band 5 -98.5 10MHz Band width Band 7 -97.0 10MHz Band width Band 8 -98.5 10MHz Band width Band 28 -98.5 10MHz Band width Band 66 -97.
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Figure 4-1 RF Reference Circuit Design  Make sure the characteristic impedance of the transmission cable is 50 ohms.  Since the antenna cable loss is less than 0.3dB, keep the PCB routing as short as possible.  PCB LAYOUT should be as straight as possible to avoid vias and layers, and avoid right-angle and acute-angle routing.  PCB routing should have a good reference ground to avoid other signal line from approaching the antenna.  A complete ground level is recommended as a reference ground.
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recommended. 3) Polarization Polarization is the rotation direction of the electric field in the maximum radiation direction of the antenna. Linear polarization is recommended. 4) Radiation Pattern Radiation pattern refers to the antenna’s electromagnetic field strength in the far field in all directions. Half-wave dipole antenna is the most suitable terminal antenna. For built-in antenna, PIFA antennas or IFA antennas are recommended: Antenna area: 6mm high x 10mm wide x 100mm long.
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L610 Module Main Antenna Requirements LTE Band 28(2100): 100 MHz LTE Band 66(2100): 100 MHz Impedance Input power Standing wave ratio recommended 50 ohms > 33dBm (2 W) peak power GSM > 23dBm average power LTE ≤ 2:1 Reproduction forbidden without Fibocom Wireless Inc.
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5 Electrical Characteristics 5.1 Limiting Voltage Range The limiting voltage range refers to the power voltage of the module and the maximum voltage range that the digital and analog I/O interfaces can withstand. The voltage range of L610 module is shown in the following table. Parameter Description Min Typ Max Unit VBAT Power supply -0.3 - 4.6 V -0.3 - 2.0/2.8 V Level power supply voltage of GPI/O digital I/O 5.
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VL Signal Digital input Digital output VH Unit Min Max Min Max -0.3 0.6 1.2 2.0 V - 0.45 1.35 - V Parameter I/O Min Typ Max Unit VBAT I 3.4 3.8 4.3 V USIM_VDD O 1.7/2.75 1.8/2.85 1.9/2.95 V 5.4 Environmental Reliability Requirements Test Item Test Condition Low temperature storage test High temperature storage test Temperature -45℃±3℃, 24 hours in shutdown state Temperature +90℃±3℃, 24 hours in shutdown state Temperature In shutdown state, 0.
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5.5 ESD Characteristics Although the design of L610 module has considered the ESD issues and provided ESD protection, the ESD issue may occur in the transport and secondary development, so developers should consider ESD protection for the final product. In addition to considering anti-static treatment for packaging, please refer to recommended circuit for interface design in the document for client’s application. Refer to the following table for the ESD allowable discharge range of L610 module.
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6 Structure Specification 6.1 Product Appearance The product appearance of L610 module is shown in the figure below: Figure 6- 1 Module Product Appearance (Top) Figure 6- 2 Module Product Appearance (Bottom) Reproduction forbidden without Fibocom Wireless Inc.
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6.2 Structural Dimension The structural dimension of L610 module is shown in Figure 6-3: Figure 6- 3 Structural Dimension (in mm) 6.3 SMT Patch For module stencil design, solder paste and furnace temperature control, please refer to FIBOCOM L610 SMT Design Guide. 7 Warnning Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with Part 15 of the FCC Rules.
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(1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Note: 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. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
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required with this module installed. IMPORTANT NOTE: In the event that these conditions can not be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization is no longer considered valid and the 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.