SIM7080G Hardware Design LPWA Module SIMCom Wireless Solutions Limited Building B, SIM Technology Building, No.633, Jinzhong Road Changning District, Shanghai P.R. China Tel: 86-21-31575100 support@simcom.com www.simcom.
SIM7080G_Hardware_Design_V1.04 Document Title: Version: Date: Status: SIM7080G Hardware Design 1.04 2020-09-27 Released GENERAL NOTES SIMCOM OFFERS THIS INFORMATION AS A SERVICE TO ITS CUSTOMERS TO SUPPORT THE APPLICATION AND ENGINEERING EFFORTS THAT USE THE PRODUCTS DESIGNED BY SIMCOM. THE INFORMATION PROVIDED IS BASED ON THE REQUIREMENTS SPECIFICALLY FROM THE CUSTOMERS.
SIM7080G_Hardware_Design_V1.04 Version History Date Version Description of change 2019-05-31 1.00 Original 2019-08-28 1.01 2019-10-11 1.02 2019-12-25 1.03 2020-08-11 1.04 www.simcom.com Author Hongjun Tu Lijuan Yin Update GNSS Passive antenna circuit and Galileo Frequency. Hongjun Tu Update GRFC dedicated signals lines to control the Xianjing Zhao antenna tuner. Hongjun Tu Update power consumption data. Xianjing Zhao Update power consumption data.
SIM7080G_Hardware_Design_V1.04 Contents Version History.................................................................................................................................................................3 Contents............................................................................................................................................................................4 Table Index....................................................................................................
SIM7080G_Hardware_Design_V1.04 4.2 4.3 LTE Antenna Design Guide.....................................................................................................................45 GNSS.......................................................................................................................................................... 46 4.3.1. GNSS Technical specification.....................................................................................................46 4.3.2.
SIM7080G_Hardware_Design_V1.
SIM7080G_Hardware_Design_V1.04 Table 45: Terms and Abbreviations······················································································· 74 Table 46: Safety Caution·····································································································76 www.simcom.
SIM7080G_Hardware_Design_V1.04 Figure Index Figure 1: SIM7080G block diagram................................................................................................................... 11 Figure 2: Pin assignment overview............................................................................................................................ 13 Figure 3: Dimensions (Unit: mm)............................................................................................................................
SIM7080G_Hardware_Design_V1.04 1. Introduction This document describes the electronic specifications, RF specifications, interfaces, mechanical characteristics and testing results of SIMCom SIM7080G module. With the help of this document and other related software application notes/user guides, users can understand and use SIM7080G to design and develop applications quickly. 1.1. Product Outline The SIM7080G modules support LTE CAT-M1, LTE CAT-NB1/NB2. The physical dimension of SIM7080G is 17.6mm×15.
SIM7080G_Hardware_Design_V1.04 LTE-FDD B85 GNSS GPS GLONASS BeiDou Galileo NOTE Galileo is default closed in software. But users can open it via AT command “AT+CGNSMOD”. For more information about these AT commands, please refer to Document [1] 1.2.
SIM7080G_Hardware_Design_V1.04 Figure 1: SIM7080G block diagram 1.4. Functional Overview Table 2: General features Feature Implementation Power supply Power supply voltage 2.7V～4.8V. Default :3.8V Power saving Current in sleep mode: 1.2mA Current in PSM mode: 3uA Radio frequency bands Please refer to the table 1 Transmitting power LTE power class: 5 (0.125W).
SIM7080G_Hardware_Design_V1.04 Digital audio feature Support PCM interface. Only support PCM master mode and short frame sync SPI interface Support for serial data bus SPI, only used during DAM application secondary development. UART interface One channel full-function UART1 by default can be used for AT communication. Baud rate: 300bps to 3686400bps. Default rate is 0bps (auto baud rate). Support auto baud rate, but only limited to 9600, 19200, 38400, 57600 and 115200 bps.
SIM7080G_Hardware_Design_V1.04 2. Package Information 2.1 Pin Assignment Overview The module has 77 pins and provides all the hardware interfaces of the module. Figure 2: Pin assignment overview Table 3: Pin definition Pin No. Pin Name Pin No. Pin Name Pin No. Pin Name 1 UART1_TXD 2 UART1_RXD 3 UART1_RTS 4 UART1_CTS 5 UART1_DCD 6 UART1_DTR www.simcom.
SIM7080G_Hardware_Design_V1.
SIM7080G_Hardware_Design_V1.04 PO Power output AI Analog input AIO Analog input/output I/O Bidirectional input /output DI Digital input DO Digital output DOH Digital output with high level DOL Digital output with low level PU Pull up PD Pull down Table 5: Pin Description Pin name Pin number Default status Description 34,35 PI Power supply, voltage range: 2.7V～4.8V. PO This power supple only use for external LDO power output 1.
SIM7080G_Hardware_Design_V1.04 SIM interface SIM Card data I/O, which has been pulled up via a 20KR resistor to SIM_VDD internally. Do not pull it up or down All lines of SIM externally. interface should be SIM Reset protected against SIM clock ESD. Power output for SIM card, its output Voltage depends on SIM card type automatically. Its output current is up to 50mA.
SIM7080G_Hardware_Design_V1.04 the VDD_EXT. PCM interface PCM_DIN 9 DI PCM data input. PCM_DOUT 10 DO PCM data output. PCM_CLK 11 DO PCM data bit clock. PCM_SYNC 12 DO PCM data frame sync signal. 48 DO Chip Select If unused, please keep them open. SPI interface SPI_CS SPI_MOSI 49 DO Main Controller DATA output. Note: This chip pin has fast boot function. It cannot be pulled up before booting. Otherwise it will affect the normal boot.
SIM7080G_Hardware_Design_V1.04 be pulling up this pin to DURING NORMAL POWER UP! VDD_EXT before press the PWRKEY. If it needs to boot up normally, please keep this pin open. ADC 38 NC 28, 46, 52, 54, 56 AI 29, 47, 53, 55, Analog-digital converter input. voltage range: 0V～1.875V. If unused, keep them open. No connection. Keep it open NOTE Please reserve a test point for BOOT_CFG and VDD_EXT.
SIM7080G_Hardware_Design_V1.04 Figure 3: Dimensions (Unit: mm) www.simcom.
SIM7080G_Hardware_Design_V1.04 2.4 Footprint Recommendation Figure 4: Footprint recommendation (Unit: mm) www.simcom.
SIM7080G_Hardware_Design_V1.04 3. Interface Application 3.1 Power Supply Pin 34 and pin 35 are VBAT power input. On VBAT pads, when module works on CAT-M1 or NB-IoT mode, the ripple current is up to 0.5A typically. For steady voltage, the power supply capability must be up to 0.5A. Table 6: VBAT pins electronic characteristic Symbol Description Min Typ Max Unit VBAT Module power voltage 2.7 3.8 4.8 V IVBAT(peak) Module power peak current in CAT-M1 and NB-IoT emission mode. 0.
SIM7080G_Hardware_Design_V1.04 Figure 5: Power supply application circuit In addition, for ESD protection, it is suggested to add a TVS diode near the VBAT PINs. These capacitors should be put as close as possible to VBAT pads. Also, users should keep VBAT trace on circuit board wider than 1 mm to minimize PCB trace impedance. Table 7: Recommended TVS diode list No.
SIM7080G_Hardware_Design_V1.04 Figure 6: power supply reference circuit 3.1.3. Voltage Monitor To monitor the VBAT voltage, the AT command “AT+CBC” can be used. AT command “AT+CBATCHK=1” can be used to enable the overvoltage warning function and the under-voltage warning function. The default value of the overvoltage warning function in the software is 4.85V, and the default value of the under-voltage warning function is 2.8V. If the power supply for VBAT pins is up 4.85V or under 2.
SIM7080G_Hardware_Design_V1.04 3.2 Power on/Power off Function 3.2.1. Power on SIM7080G can be powered on by briefly pulling the PWRKEY pin to ground. The PWRKEY pin has been pulled up with a diode to 1.8V internally, so it does not need to be pulled up externally. It is strongly recommended to put an ESD protection diode close to the PWRKEY pin, as it would strongly enhance the ESD performance of PWRKEY pin. The PWRKEY pin has its own reset function.
SIM7080G_Hardware_Design_V1.04 Figure 8: Power on timing sequence Table 8: Power on timing and electronic characteristic Symbol Parameter Min. Typ. Max. Ton The time of active low level impulse of PWRKEY pin to 1 power on module - Ton(Vdd) The time from power-on issue to VDD_EXT pin output high level. 64 Ton(status) The time from power-on issue to STATUS pin output high 1.8 level(indicating power up ready ) - - s Ton(uart) The time from power-on issue to UART port ready 1.
SIM7080G_Hardware_Design_V1.04 3.2.2. Power off The following methods can be used to power off SIM7080G. Method 1: Power off SIM7080G by pulling the PWRKEY pin to ground. Method 2: Power off SIM7080G by AT command “AT+CPOWD=1”. Method 3: over-voltage or under-voltage automatic power off. The function can be enabled by AT command “AT+CBATCHK=1”. Default is disabled. NOTE For details about “AT+CPOWD” and “AT+CBATCHK”, please refer to Document [1].
SIM7080G_Hardware_Design_V1.04 Table 9: Power off timing and electronic characteristic Time value Symbol Parameter Toff The active low level time pulse on PWRKEY pin to power 1.2 off module - - s Toff(vdd) The time from power-off issue to VDD_EXT pin output low 1.8 level - - s Toff(status) The time from power-off issue to STATUS pin output low 1.8 level(indicating power off )* - - s Toff(uart) The time from power-off issue to UART port off 1.
SIM7080G_Hardware_Design_V1.04 57600, 115200, 230400, 921600, 2000000, 3000000, 3200000 and 3686400 bps. The rate 0bps marks auto baud rate. And it supports auto baud rate, but the rate only supported on 9600, 19200, 38400, 57600, 115200. If users need to change to other baud rate, it needs to switch via manual operation. 3.3.1. UART Design Guide The following figures show the reference design.
SIM7080G_Hardware_Design_V1.04 VIH UART input high level voltage 1.17 1.8 2.1 V VIL UART input low level voltage -0.3 0 0.63 V VOH UART output high level voltage 1.35 1.8 1.8 V VOL UART output low level voltage 0 0 0.45 V The SIM7080G UART is 1.8V voltage interface. If user’s UART application circuit is 3.3V voltage interface, the level shifter circuits should be used for voltage matching. The following figure shows the voltage matching reference design.
SIM7080G_Hardware_Design_V1.04 model MMBT3904 is recommended. 3.3.2. RI and DTR Behavior The RI pin description: The RI pin can be used to interrupt output signal to inform the host controller such as application CPU. Before that, users must use AT command “AT+CFGRI=1” to enable this function. Normally RI will keep high level until certain conditions such as receiving SMS, or a URC report coming, then it will output a low level pulse 120ms, in the end, it will become high level.
SIM7080G_Hardware_Design_V1.04 The reference circuit refers to the following figure. Figure 15: USB reference circuit Because of the high speed on USB bus, more attention should be paid to the influence of the junction capacitance of the ESD component on USB data lines. Typically, the capacitance of the D1 and D2 should be less than 3pF. D3 is suggested to select the diode with anti-ESD and voltage surge function, or customer could add a ZENER diode for surge clamping.
SIM7080G_Hardware_Design_V1.04 VOL Low-level output voltage 0 0 0.45 V NOTE 1. The module does not support 3V SIM card. 2. The software does not support the SIM card hot swap function. 3.5.1. SIM Application Guide It is recommended to use an ESD protection component such as ESDA6V1W5 produced by ST (www.st.com ) or SMF15C produced by ON SEMI (www.onsemi.com ). Note that the SIM peripheral circuit should be close to the SIM card socket.
SIM7080G_Hardware_Design_V1.04 Table 12: PCM format Characteristics Specification Line Interface Format Linear(Fixed) Data length 16bits(Fixed) PCM Clock/Sync Source Master Mode(Fixed) PCM Clock Rate 2048 KHz (Fixed) PCM Sync Format Short sync(Fixed) Data Ordering MSB NOTE For more details about PCM AT commands, please refer to document [1]. 3.6.1. PCM timing SIM7080G supports 2.048 MHz PCM data and sync timing for 16 bits linear format codec.
SIM7080G_Hardware_Design_V1.04 Figure 19: Module to external codec timing Table 13: PCM timing parameters Parameter Description Min. Typ. Unit T(sync) Max . PCM_SYNC cycle time – 125 – μs T(synch) PCM_SYNC high level time – 488 – ns T(syncl) PCM_SYNC low level time – 124.
SIM7080G_Hardware_Design_V1.04 Figure 20: Audio codec reference circuit 3.7 I2C Interface SIM7080G provides an I2C interface with clock rate up to 400 kbps. Its operation voltage is 1.8V. The following figure shows the I2C bus reference design. Figure 21: I2C reference circuit The I2C signal has no pull-up resistors in module. So the pulling up resistors 1KΩ to VDD_EXT is necessary in application circuit. www.simcom.
SIM7080G_Hardware_Design_V1.04 3.8 SPI Interface SIM7080G supports a set of 4- wire (MISO, MOSI, CS and CLK) SPI interfaces and supports both SPI master mode and SPI slave mode. The maximum clock frequency is up to 50MHz when operating in SPI master mode and up to 25MHz when operating in SPI Slave mode. This feature is only used in DAM (Downloadable Application Module) application when secondary development. The following figure shows the SPI bus reference design.
SIM7080G_Hardware_Design_V1.04 NOTE The SPI_MOSI (49 pin) function is FAST BOOT function before system boot-up, so the level on this pin cannot be high before the system boot-up, otherwise the module will not start normally. 3.9 Network status The NETLIGHT pin is used to control Network Status LED, its reference circuit is shown in the following figure. Figure 24: NETLIGHT reference circuit NOTE The value of the resistor named “R” depends on the LED characteristic. Table 14: NETLIGHT pin status www.
SIM7080G_Hardware_Design_V1.04 NETLIGHT pin status Module status 64ms ON, 800ms OFF No registered network 64ms ON, 3000ms OFF Registered network (PS domain registration success) 64ms ON, 300ms OFF Data transmit (PPP dial-up state and use of data services such as internal TCP/FTP/HTTP) OFF Power off or PSM mode NOTE NETLIGHT output low level as “OFF” and high level as “ON”. 3.10 ADC Interface SIM7080G has a dedicated ADC pin.
SIM7080G_Hardware_Design_V1.04 3.11 LDO output SIM7080G has a LDO power output named VDD_EXT. The output voltage is 1.8V. This voltage can only be pulled up for the external GPIO or power supply for the level conversion circuit. Figure 25: Power on sequence of the VDD_EXT Table 16: Electronic characteristic Symbol Description Min. Typ. Max. Unit VVDD_EXT Output voltage 1.75 1.8 1.85 V IO Output current - - 50 mA NOTE The VDD_EXT is used to the IO power in the module.
SIM7080G_Hardware_Design_V1.04 Figure 26: RFGRFC interface reference circuit 3.13 Force USB Download Interface The module can enter the USB forced download mode with pulling up the BOOT_CFG pin. The reference circuit refers to the following figure. Figure 27: Reference circuit of BOOT_CFG interface www.simcom.
SIM7080G_Hardware_Design_V1.04 4. RF Specifications \ 4.1 LTE RF Specifications Table 17: Conducted transmission power CAT-NB2 Frequency Power Min LTE-FDD B1 20dBm +/-2.7dB <-40dBm LTE-FDD B2 20dBm +/-2.7dB <-40dBm LTE-FDD B3 20dBm +/-2.7dB <-40dBm LTE-FDD B4 20dBm +/-2.7dB <-40dBm LTE-FDD B5 20dBm +/-2.7dB <-40dBm LTE-FDD B8 20dBm +/-2.7dB <-40dBm LTE-FDD B12 20dBm +/-2.7dB <-40dBm LTE-FDD B13 20dBm +/-2.7dB <-40dBm LTE-FDD B18 20dBm +/-2.
SIM7080G_Hardware_Design_V1.04 LTE-FDD B12 20dBm +/-2.7dB <-40dBm LTE-FDD B13 20dBm +/-2.7dB <-40dBm LTE-FDD B14 20dBm +/-2.7dB <-40dBm LTE-FDD B18 20dBm +/-2.7dB <-40dBm LTE-FDD B19 20dBm +/-2.7dB <-40dBm LTE-FDD B20 20dBm +/-2.7dB <-40dBm LTE-FDD B25 20dBm +/-2.7dB <-40dBm LTE-FDD B26 20dBm +/-2.7dB <-40dBm LTE-FDD B27 20dBm +2.7/-3.2dB <-40dBm LTE-FDD B28 20dBm +/-2.7dB <-40dBm LTE-FDD B66 20dBm +/-2.7dB <-40dBm LTE-FDD B85 20dBm +/-2.
SIM7080G_Hardware_Design_V1.04 Frequency Receiving Transmission BAND Information Refers to Table 1 GPS L1 BAND 1574.4 ～1576.44 MHz GLONASS 1598 ～1606 MHz BD 1559 ～1563 MHz Galileo 1575.42±1.023MHz Table 20: E-UTRA operating bands E-UTRA UL Freq. DL Freq.
SIM7080G_Hardware_Design_V1.04 2 -101 -107 HD-FDD 3 -100 -107 HD-FDD 4 -103 -107 HD-FDD 5 -101.5 -107 HD-FDD 8 -100.5 -107 HD-FDD 12 -100 -106 HD-FDD 13 -100 -106 HD-FDD 14 -100 -103 HD-FDD 18 -103 -107 HD-FDD 19 -103 -107 HD-FDD 20 -100.5 -107 HD-FDD 25 -99.5 -103 HD-FDD 26 -101 -108 HD-FDD 27 -101.5 -108 HD-FDD 28 -101.
SIM7080G_Hardware_Design_V1.04 85 -108.2 -115 -130 NOTE The 12/7/1/128 of the REFSENS Typical Repeated 12/ 7/1/128 [EPRE dbm/15KHz means Subcarriers=12, MCS.TBS=7, #SF/#RU=1, #Repetition=128. 4.2 LTE Antenna Design Guide Users should connect antennas to SIM7080G’s antenna pads through micro-strip line or other types of RF trace and the trace impedance must be controlled in 50Ω.
SIM7080G_Hardware_Design_V1.04 50Ω. Two TVS are recommended in the table below. Table 25: Recommended TVS Package Part Number Vender 0201 LXES03AAA1-154 Murata 0402 LXES15AAA1-153 Murata 4.3 GNSS SIM7080G merges GNSS (GPS/GLONASS/BD) satellite and network information to provide a high-availability solution that offers industry-leading accuracy and performance.
SIM7080G_Hardware_Design_V1.04 4.3.2. GNSS Application Guide Users can adopt an active antenna or a passive antenna to SIM7080G. If using a passive antenna, an external LNA is a must to get better performance. The following figures are the reference circuits. Figure 28: Active antenna circuit Figure 29: Passive antenna circuit (Default) In above figures, the components C1, L1 and L2 are used for antenna matching.
SIM7080G_Hardware_Design_V1.04 SIM7080G in proper operating mode by AT command. Please refer to related documents for details. SIM7080G can also get position location information through AT directly. NOTE 1. GNSS is closed by default and can be started by “AT+CGNSPWR=1”. The AT command has two parameters, the first is on/off, and the second is GNSS mode. Default mode is standalone mode. AGPS mode needs more support from the mobile telecommunication network. Please refer to document [21] for more details. 2.
SIM7080G_Hardware_Design_V1.04 4.4 RF traces note 4.4.1. RF traces layout Keep the RF trace from module ant pin to antenna as short as possible RF trace should be 50 Ω either on the top layer or in the inner layer RF trace should be avoided right angle and sharp angle. Put enough GND vias around RF traces. RF trace should be far away from other high speed signal lines.
SIM7080G_Hardware_Design_V1.04 Figure 31: The distance between GND to the inner conductor of SMA GND pads around the ANT pad should not be hot pad to keep the GND complete. 4.4.2. LTE ANT and other system ANT decoupling Make sure the efficiency of LTE main ANT more than 40% Keep the decoupling of LTE main ANT to WLAN ANT more than 15dB Keep the decoupling of LTE main ANT to GNSS ANT more than 30dB NOTE The decoupling value can be provided by ANT adventure.
SIM7080G_Hardware_Design_V1.04 Huizhou Speed Wireless Technology Co., Limited MF25D Table 27: list of recommended antenna parameters: Antenna parameters Specifications Reflection loss Less than -10dB Efficiency Greater than 35% Gain Greater than -4.5dBi 5. Electrical Specifications 5.1.
SIM7080G_Hardware_Design_V1.04 Table 29: Recommended operating ratings Parameter Min Type Max Unit Voltage at VBAT 2.7 3.8 4.8 V Voltage at USB_VBUS 3.5 5.0 5.25 V Make sure that the voltage on the VBAT pins will never drop below 2.7V, even during a transmit burst. Otherwise, module will be power down. Table 30: 1.8V Digital I/O characteristics* Parameter Description Min Type Max Unit VIH High-level input voltage 1.17 1.8 2.1 V VIL Low-level input voltage -0.3 0 0.
SIM7080G_Hardware_Design_V1.04 NOTE Module is able to make and receive voice calls, data calls, SMS and make GPRS/LTE traffic in -40℃ ~ +85℃. The performance will be reduced slightly from the 3GPP specifications if the temperature is outside the normal operating temperature range and still within the extreme operating temperature range. 5.3. Operating Mode 5.3.1. Operating Mode Definition The table below summarizes the various operating modes of SIM7080G product.
SIM7080G_Hardware_Design_V1.04 than normal mode. Flight mode AT command “AT+CFUN=4” can be used to set the module to flight mode without removing the power supply. In this mode, the RF part of the module will not work, but the serial port and USB port are still accessible. The power consumption in this mode is lower than normal mode. Power Saving Mode (PSM) Setting AT command” AT+CPSMS=1” can be enable the PSM mode. In this mode, The mode is similar to power-off.
SIM7080G_Hardware_Design_V1.04 5.3.3. Minimum functionality mode and Flight mode There are three functionality modes, which could be set by AT command “AT+CFUN=“. The command provides the choice of the functionality levels =0, 1, 4. AT+CFUN=0: Minimum functionality AT+CFUN=1: Full functionality (Default) AT+CFUN=4: Flight mode If SIM7080G has been set to minimum functionality mode, the RF function and SIM card function will be closed.
SIM7080G_Hardware_Design_V1.04 E-DRX diagrammatic sketch refer to the following figure. ptw ptw ptw ··· DRX Cycle length DRX Cycle length DRX Cycle length Figure 32: e-DRX diagrammatic sketch When module and the network negotiate stratum signaling in idle mode or sleep mode, extended mode DRX can decrease the times of paging time window (PTW) and increase the cycle length. For this reason it had reduced the times of DRX, and had reduced the frequency of DRX between module and the network.
SIM7080G_Hardware_Design_V1.04 5.4. Current Consumption The current consumption is listed in the table below. Table 33: Current consumption on VBAT Pins (VBAT=3.8V) GNSS GNSS supply current (AT+CFUN=0,without USB connection) Tracking, typical: 52mA Sleep/idle mode LTE supply current (AT+CSCLK=0；AT+CFUN=1,) Sleep mode Typical: 1.
SIM7080G_Hardware_Design_V1.04 @0dbm Typical: LTE Cat-NB1/NB2 Data Transmission (15KHz single tone) www.simcom.
SIM7080G_Hardware_Design_V1.04 @0dbm Typical: www.simcom.
SIM7080G_Hardware_Design_V1.04 5.5. ESD Notes SIM7080G is sensitive to ESD in the process of storage, transporting, and assembling. When SIM7080G is mounted on the users’ mother board, the ESD components should be placed beside the connectors which human body may touch, such as SIM card holder, audio jacks, switches, keys, etc. The following table shows SIM7080G ESD measurement performance without any external ESD component. Table 34: The ESD performance measurement table (Temperature: 25℃, Humidity: 45%.
SIM7080G_Hardware_Design_V1.04 6. SMT Production Guide 6.1. Top and Bottom View of SIM7080G Figure 33: Top and bottom view of SIM7080G 6.2. Label Information www.simcom.
SIM7080G_Hardware_Design_V1.04 Figure 34: Label information Table 35: The description of label information Part Contact discharge A LOGO B No.1 Pin C Project name D Product code E FCC Certification number F International mobile equipment identity G QR code H CE Certification K Jate&Telec Certification 6.3. Typical SMT Reflow Profile SIMCom provides a typical soldering profile.
SIM7080G_Hardware_Design_V1.04 Figure 35: The ramp-soak-spike reflow profile of SIM7080G NOTE For more details about secondary SMT, please refer to the document [19]. 6.4. Moisture Sensitivity Level (MSL) SIM7080G is qualified to Moisture Sensitivity Level (MSL) 3 in accordance with JEDEC J-STD-033. The following table shows the features of Moisture Sensitivity Level (MSL). After seal off, storage conditions must meet the following table.
SIM7080G_Hardware_Design_V1.04 6.5. Baking In order to get better yield, the module need to bake before SMT. If the packaging is in perfect condition, the module which date of production is within six months has no use for baking. If the date of production is more than six months, the module must be baking. If the packaging had been opened or damaged, the module must be baking.
SIM7080G_Hardware_Design_V1.04 Figure 36: stencil recommendation (Unit: mm) www.simcom.
SIM7080G_Hardware_Design_V1.04 7. Packaging SIM7080G module support tray packaging. Figure 37: packaging diagram Module tray drawing： Figure 38: Tray drawing www.simcom.
SIM7080G_Hardware_Design_V1.04 Table 38: Tray size Length（±3mm） Width（±3mm） Module number 242.0 161.0 50 Small carton drawing： Figure 39: Small carton drawing Table 39: Small Carton size Length（±10mm） Width（±10mm） Height（±10mm） Module number 270 180 120 50*20=1000 Big carton drawing： www.simcom.
SIM7080G_Hardware_Design_V1.04 Figure 40: Big carton drawing Table 40: Big Carton size Length（±10mm） Width（±10mm） Height（±10mm） Module number 380 280 280 1000*4=4000 www.simcom.
SIM7080G_Hardware_Design_V1.04 8. Appendix 8.1 Reference Design Refer to < SIM7080G Reference Design V1.01> for the details. Figure 41: Reference design www.simcom.
SIM7080G_Hardware_Design_V1.04 8.2 Design check list Table 41: Schematic Check List NO. Items 1 Insure the supply voltage for VBAT is within the range of 2.7V~4.8V. 2 Insure the maximum supply current for VBAT is above its consumption when it is maximum power emission. 3 Insure the capacitor for VBAT is meet its request, in order to avoid the voltage drop exceed 200mV. And the voltage never dropped below 2.7V. 4 Insure the input signal for PWRKEY pin meet its electrical level match.
SIM7080G_Hardware_Design_V1.04 4 Insure PCM trance is protected by GND, and keep it far from interference source, such as power supply trace, USB trace, RF trace and so on. 5 Insure USB trance is protected by GND, and keep it far from interference source, such as power supply trace, RF trace and so on. Insure DM/DP trace is differential routing, and differential impedance is 90 ohm. 6 Insure ADC trance is protected by GND. 7 Insure SIM card signal trance is protected by GND.
SIM7080G_Hardware_Design_V1.04 8.4 Related Documents Table 44: Related Documents NO. Title [1] SIM7080G Command V1.xx [2] 3GPP TS 51.010-1 Digital cellular telecommunications system (Release 5); Mobile Station (MS) conformance specification [3] 3GPP TS 34.124 Electromagnetic Compatibility (EMC) for mobile terminals and ancillary equipment. [4] 3GPP TS 34.121 Electromagnetic Compatibility (EMC) for mobile terminals and ancillary equipment. [5] 3GPP TS 34.
SIM7080G_Hardware_Design_V1.04 Application Note_V1.xx [14] [15] ETSI EN 301 908-13 (ETSI TS 136521-1 R13.4.0) ANTENNA DESIGN GUIDELINES FOR MULTI-ANTENNA SYSTEM V1 01 www.simcom.com SIMCom modules. IMT cellular networks; Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive; Part 13 Design notice for multi-antenna.
SIM7080G_Hardware_Design_V1.04 8.
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SIM7080G_Hardware_Design_V1.04 8.6 Safety Caution Table 46: Safety Caution Marks Requirements When in a hospital or other health care facility, observe the restrictions about the use of mobiles. Switch the cellular terminal or mobile off, medical equipment may be sensitive and not operate normally due to RF energy interference. Switch off the cellular terminal or mobile before boarding an aircraft. Make sure it is switched off.
