SIM7020G_User Manual_V1.
Smart Machine Smart Decision Document Title SIM7020G_User Manual Version 1.00 Date 2019-01-15 Status Release Document Control ID SIM7020G_User Manual_V1.00 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.
Smart Machine Smart Decision Contents Contents .............................................................................................................................................2 Table Index ........................................................................................................................................4 Figure Index ......................................................................................................................................6 1 Introduction ......
Smart Machine Smart Decision 6 Electrical Specifications ...........................................................................................................40 6.1 Absolute maximum ratings .................................................................................................40 6.2 Operating conditions ...........................................................................................................40 6.3 Operating Mode ............................................................
Smart Machine Smart Decision Table Index Table 1: SIM7020G frequency bands and air interface...............................................................8 Table 2: General features ..........................................................................................................10 Table 3: Pin definition ...............................................................................................................12 Table 4: IO parameters definition ...............................................
Smart Machine Smart Decision SIM7020G_User Manual_V1.
Smart Machine Smart Decision Figure Index Figure 1: SIM7020G block diagram ...........................................................................................9 Figure 2: Pin assignment overview ........................................................................................... 11 Figure 3: Dimensions (Unit: mm) .............................................................................................16 Figure 4: Footprint recommendation (Unit: mm) ........................................
Smart Machine Smart Decision Revision History Data Version Description of change Author 2019-01-15 1.00 Original olivier.Wu lijuan.yin SIM7020G_User Manual_V1.
1 Introduction This document describes SIM7020G hardware interface in great detail. The document can help customer to quickly understand SIM7020G interface specifications, electrical and mechanical details. With the help of this document and other SIM7020G application notes, customer guide, customers can use SIM7020G to design various applications quickly. 1.1 Product Outline The SIM7020G series modules support LTE CAT-NB1 and LTE CAT-NB2. With a tiny configuration of 17.6*15.7*2.
Smart Machine Smart Decision 1.2 Hardware Interface Overview The interfaces are described in detail in the next chapters include: ➢ Power Supply ➢ USB Interface ➢ UART Interface ➢ SPI Interface ➢ I2C Interface ➢ SIM Interface ➢ ADCs ➢ Power Output ➢ GPIOs ➢ Antenna Interface 1.3 Hardware Block Diagram The block diagram of the SIM7020G module is shown in the figure below.
Smart Machine Smart Decision 1.4 Functional Overview Table 2: General features Feature Implementation Power supply Power supply voltage 2.1～3.6V,Typ=3.3V Power saving Current in sleep mode: 236uA (at+cfun=0) Current in PSM mode: 3.4uA Radio frequency bands Please refer to the table 1 Transmitting power LTE 23dBm Data Transmission Throughput LTE CAT NB2: 126Kbps (DL) LTE CAT NB2: 150Kbps (UL) Antenna LTE antenna. SMS MT, MO, Text and PDU mode SIM interface Support identity card: 1.
Smart Machine Smart Decision 2 Package Information UART1_RXD 1 2 VBAT VBAT 35 34 GND 36 GND ADC 38 37 PWRKEY 39 40 41 42 UART1_TXD VDD_EXT NETLIGHT Pin Assignment Overview STATUS 2.
Smart Machine Smart Decision Table 3: Pin definition Pin No. Pin Name Pin No.
Smart Machine Smart Decision 36 GND 37 GND 2.2 73 GND Pin Description Table 4: IO parameters definition Pin type Description PI Power input 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 No.
Smart Machine Smart Decision 66、67、 69-73 System Control DI，PU System power on/off control input, active low. The efficient input level must be below 0.5V. PWRKEY has been pulled up to VBAT via 40Kohm resistor internally. 28 DI，PU System reset control input, active low. RESET has been pulled up to VBAT via 40Kohm resistor internally.
Smart Machine Smart Decision RTC_GPIO0 11 DO In PSM mode, RTC_GPIO0 will change state from low to high when RTC_EINT receive an interrupt event to exit PSM. Enter PSM(RTC_GPIO0 is low) Exit PSM (RTC_GPIO0 is high) Voltage Domain: VBAT RTC_EINT can be used to wake up SIM7020G from PSM mode, which is pull up to VBAT, active is low.
2.3 Mechanical Information The following figure shows the package outline drawing of SIM7020G.
Smart Machine Smart Decision 2.4 Footprint Recommendation Figure 4: Footprint recommendation (Unit: mm) SIM7020G_User Manual_V1.
Smart Machine Smart Decision 2.5 Paste mask Recommendation The recommended thickness of stencil foil is 0.15mm. Figure 5: Paste mask SMT stencil footprint outline (Unit: mm) SIM7020G_User Manual_V1.
Smart Machine Smart Decision 3 Interface Application 3.1 Power Supply The power supply for SIM7020G must be able to provide sufficient instantaneous current up to more than 760mA@2.1V in order to satisfy the power supply current for maximum consumption. Table 6: VBAT pins electronic characteristic Symbol Description Min. Typ. Max. Unit VBAT Module power voltage 2.1 3.3 3.6 V IVBAT(peak)@3.
Smart Machine Smart Decision ⑴ 0R ⑵ MBR2H200SF ①system ⑶ MCH3374 Ca + Cb + Cc 0402 Cd BOOST PA ②PA current Ce 0402 0402 3 NC GND 2 4 VDD OUT 1 S-1000C33 VDET@3.
Smart Machine Smart Decision Table 8：VDET+PMOS&LDO & diode： VDET+PMOS 2A Diode MBR2H200SF 2A LDO DC TPS7A92 Cost Mediate (Good) high less (BEST) Solution Size 6.45mm2 6.25mm2 (only TPS7A92) 4.455mm2 Vmin: 2.1V Vmin: 3.0V(2.1V+0.9V@1A) Vmin: 2.36V(=2.1V+Vdo) VBAT operating range Vmax: 3.8V (Good) Vmax: 3.8V (Bad) Vmax: 3.8V Ploss = 0.9V(Vf@1A) * 1A = Efficiency @Vin > 3.3V Ploss = 0.75V(Vf@1A) * 1A = 0.75W Ploss = (3.8V-3.3V) * 1A = 0.5W 0.9W Efficiency @Vin < 3.3V Ploss = Ron(<0.
Smart Machine Smart Decision VBAT VBAT VBAT Ce 22pF Cd Cc 100pF 100nF Cb Ca 100uF 100uF 5.1V 500 mW Module GND GND Figure 7: Power supply application circuit In addition, for ESD protection, it is suggested to add a TVS diode near the VBAT PINs. Table 9: Recommended TVS diode list No. Manufacturer Part Number Package 1 Prisemi PESDHC2FD4V5B DFN1006 2 Prisemi PESDHC3D3V3U SOD323 3 WILLsemi ESD5651N-2/TR DFN1006 3.
Smart Machine Smart Decision VBAT 40K 1K PWRKEY Turn on/off impulse H 4.7K L Power on/off logic 100nF 47K Module Figure 8: Reference power on/off circuit Note: Do not directly ground the PWRKEY pin, and do not lower GPIO0 before starting the machine. The power-on scenarios are illustrated in the following figure.
Smart Machine Smart Decision Table 10: Power on timing and electronic characteristic Symbol Parameter Min. Typ. Max.
Smart Machine Smart Decision Table 11: Power off timing and electronic characteristic Symbol Parameter Toff Time value Unit Min. Typ. Max. The active low level time pulse on PWRKEY pin to power off module 0.8 1 - s Toff(status) The time from power-off issue to STATUS pin output low level(indicating power off )* - - 0.
Smart Machine Smart Decision Table 12: RESET pin electronic characteristic Symbol Description Min. Typ. Max. Unit Treset The active low level time impulse on RESET pin to reset module 40 - - ms VIH Input high level voltage 0.7*VBAT VIL Input low level voltage 3.5 V 0.3*VBAT V UART Interface SIM7020G provides a 7-wire UART1 (universal asynchronous serial transmission) interface as DCE (Data Communication Equipment).
Smart Machine Smart Decision The SIM7020G 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 TXB0108RGYR provided by Texas Instruments is recommended. The following figure shows the voltage matching reference design. TXB0108 RGYR 100nF VCCA OE VDD_EXT MODULE DCE TXD UART RXD RTS CTS DTR DCD RI 47K VCCB A1 A2 A3 A4 A5 A6 A7 B1 B2 B3 B4 B5 B6 B7 A8 B8 DTE 100nF 3.3V TXD_3.3V RXD_3.
Smart Machine Smart Decision VDD_EXT MODULE DCE DTE VDD_EXT VDD 4.7K 4.7K 47K TXD UART1_RXD Figure 16: RX level matching circuit Note: The default band rate is 0bps (auto baud rate). The triode conversion circuit is not suitable for high band rate more than 460800. When using UART2 for downloading software, the band rate is 921600bps, please pay attention to the device’s speed support. 3.5.
Smart Machine Smart Decision but the USB charging function is not supported. MODULE HOST 0Ω USB_ VBUS USB VBUS USB_DM D- USB_DP D+ GND USB GND D3 USB_ID D1 D2 Figure 18: 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. Table 13: Recommended TVS list No. Manufacturer Part Number Description Package 1 ON Semi ESD9L5.0ST5G TVS 5V 0.
Smart Machine Smart Decision Symbol Parameter Min. Typ. Max. Unit SIM_VDD LDO power output voltage 2.75 3 3.05 V VIH High-level input voltage 0.65*SIM_VDD - SIM_VDD +0.3 V VIL Low-level input voltage -0.3 0 0.25*SIM_VDD V VOH High-level output voltage SIM_VDD -0.45 - SIM_VDD V VOL Low-level output voltage 0 0 0.45 V 3.7.1 SIM Application Guide It is recommended to use an ESD protection component such as ESDA6V1W5 produced by ST (www.st.
Smart Machine Smart Decision it is strongly recommended to follow these guidelines while designing: ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ 3.8 Make sure that SIM card holder should far away from NB_IOT antenna while in PCB layout. SIM traces should keep away from RF lines, VBAT and high-speed signal lines. The traces should be as short as possible. Keep SIM holder’s GND connect to main ground directly. Shielding the SIM card signal by ground well.
Smart Machine Smart Decision 3.9 ADC SIM7020G has a dedicated ADC pin. It is available for digitizing analog signals such as battery voltage and so on. The electronic specifications are shown in the following table. Table 17: ADC electronic characteristics Characteristics Min. Typ. Max. Unit Resolution – 10 – Bits Input Range 0.1 – 1.4 V Note: “AT+CADC” can be used to read the voltage of the ADC pin, for more details, please refer to document [1]. 3.
Smart Machine Smart Decision Table 18: Electronic characteristic Pin name Description Min. Typ. Max. Unit VVDD_EXT Output voltage 1.7 1.8 1.9 V IO Output current - - 50 mA VVDD_3V3 Output voltage 3.2 3.3 VBAT-0.1 V IO Output current - - 50 mA VDD_EXT VDD_3V3 3.11 I2C Interface The SIM7020G provides an I2C interface which is only used in the embedded AT application.
Smart Machine Smart Decision 3.12 SPI Interface The SIM7020G provides an SPI interface(master mode), It could be used as SPI interface in the embedded AT application.. Table 21: Pin definition of the SPI Pin name Pin number Description Comment SPI_MISO 51 Host input and slave output signals SPI_MOSI 49 Host outputs slave input signals SPI_CLK 50 Clock signal generated by the main device SPI_SS 48 Slave enable signal controlled by master device SPI MASTER Voltage Domain: 1.
Smart Machine Smart Decision 4 RF Specifications 4.1 LTE RF Specifications Table 22: Conducted transmission power Frequency LTE-FDD B1 LTE-FDD B2 LTE-FDD B3 LTE-FDD B4 LTE-FDD B5 LTE-FDD B8 LTE-FDD B12 LTE-FDD B13 LTE-FDD B17 LTE-FDD B18 LTE-FDD B19 LTE-FDD B20 LTE-FDD B25 LTE-FDD B26 LTE-FDD B28 LTE-FDD B66 LTE-FDD B70 LTE-FDD B71 Power 23dBm +/-2.7dB 23dBm +/-2.7dB 23dBm +/-2.7dB 23dBm +/-2.7dB 23dBm +/-2.7dB 23dBm +/-2.7dB 23dBm +/-2.7dB 23dBm +/-2.7dB 23dBm +/-2.7dB 23dBm +/-2.7dB 23dBm +/-2.
Smart Machine Smart Decision Table 24: E-UTRA operating bands E-UTRA UL Freq. DL Freq.
Smart Machine Smart Decision 2300MHz-2650MHz <1.2dB To facilitate the antenna tuning and certification test, a RF connector and an antenna matching circuit should be added. The following figure is the recommended circuit. Figure 24: Antenna matching circuit (MAIN_ANT) In above figure, the components R1, C1, C2 and R2 are used for antenna matching, the values of components can only be achieved after the antenna tuning and usually provided by antenna vendor.
Smart Machine Smart Decision Figure 25: RF trace should be far away from other high speed signal lines ➢ ➢ Avoiding the paroling rout of other system antennas nearly. There should be some distance from The GND to the inner conductor of the SMA connector. It is better to keep out all the layers from inner to the outer conductor. Figure 26: The distance between GND to the inner conductor of SMA *Note1:Keep distance from GND to SMA connector throughout all PCB layers; SIM7020G_User Manual_V1.
Smart Machine Smart Decision *Note2:GND pads around the ANT pad should not be hot pad; ➢ GND pads around the ANT pad should not be hot pad to keep the GND complete,as shown in fig.27 Note2. 4.3.2 ➢ ➢ ➢ 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.
Smart Machine Smart Decision 5 Electrical Specifications 6 Electrical Specifications 6.1 Absolute maximum ratings Absolute maximum rating for digital and analog pins of SIM7020G are listed in the following table: Table 28: Absolute maximum ratings Parameter Voltage at VBAT Voltage at USB_VBUS Voltage at digital pins (GPIO, UART etc) Voltage at digital pins (SIM) Min. -0.3 -0.3 -0.3 -0.3 Typ. - Max. 3.6 5.5 3.6 3.6 Voltage at PWRKEY/RESET/RTC_EINT/RTC_GPIO0 -0.3 - 3.6 6.
Smart Machine Smart Decision pull down resistor) IIL Input low leakage current(no pull up resistor) 5 uA *Note: These parameters are for digital interface pins, such as GPIOs (including NETLIGHT, STATUS, SIM_DET), UART. The operating temperature of SIM7020G is listed in the following table. Table 31: Operating temperature Parameter Normal operation temperature Min. -30 Typ. 25 Max.
Smart Machine Smart Decision and USB port are still accessible. The power consumption in this mode is lower 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. PSM mode In this mode, the module will be the least current consumption.
Smart Machine Smart Decision and USB are still accessible, but RF function will be unavailable. When SIM7020G is in minimum functionality or flight mode, it can return to full functionality by the AT command “AT+CFUN=1”. 6.3.4 Power Saving Mode (PSM) SIM7020G module can enter into PSM for reducing its power consumption. The mode is similar to power-off, but the module remains registered on the network and there is no need to re-attach or re-establish the network connections.
Smart Machine Smart Decision Power Saving Mode PSM mode Typical: 3.4uA PSM supply current eDRX eDRX mode supply current （Tested in sleep mode） @PTW=10.24s, Typical：230uA eDRX=20.48s, DRX=1.28s @PTW=10.24s, Typical：130uA eDRX=20.48s, DRX=2.56s @PTW=20.48s, Typical：95uA eDRX=81.92s, DRX=2.56s @PTW=20.48s, Typical：77.5uA eDRX=162.84s, DRX=2.56s @PTW=40.96s, Typical：69uA eDRX=655.36s, DRX=2.
Smart Machine Smart Decision Antenna port Other PADs +/-5 +/-3 +/-10 +/-6 Note: Temperature: 25℃, Humidity: 45%, tested on SIMCOM-EVB. SIM7020G_User Manual_V1.
Smart Machine Smart Decision 7 SMT Production Guide 7.1 Top and Bottom View of SIM7020G Figure 27: Top and bottom view of SIM7020G 7.2 Typical SMT Reflow Profile SIMCom provides a typical soldering profile. Therefore the soldering profile shown below is only a generic recommendation and should be adjusted to the specific application and manufacturing constraints. Figure 28: The ramp-soak-spike reflow profile of SIM7020G SIM7020G_User Manual_V1.
Smart Machine Smart Decision Note: For more details about secondary SMT, please refer to the document [21]. 7.3 Moisture Sensitivity Level (MSL) SIM7020G is qualified to Moisture Sensitivity Level (MSL) 3 in accordance with JEDEC J-STD-033. If the prescribed time limit is exceeded, users should bake modules for 192 hours in drying equipment (<5% RH) at 40+5/-0°C, or 72 hours at 85+5/-5°C. Note that plastic tray is not heat-resistant, and only can be baked at 45°C.
Smart Machine Smart Decision Baking temperature Moisture Time 40℃±5℃ <5% 192 hours 120℃±5℃ <5% 4 hours Note: Care should be taken if that plastic tray is not heat-resistant, the modules should be taken out for preheating, and otherwise the tray may be damaged by high-temperature heating. 8 Packaging SIM7020G module support tray packaging (default packaging). Figure 29: packaging diagram Module tray drawing： SIM7020G_User Manual_V1.
Smart Machine Smart Decision Figure 30: Tray drawing Table 38: Tray size Length（±3mm） 242.0 Width（±3mm） Module number 161.0 50 Small carton drawing： Figure 31: Small carton drawing Table 39: Small Carton size Length（±10mm） Width（±10mm） Height（±10mm） Module number 180 120 50*20=1000 270 Big carton drawing： SIM7020G_User Manual_V1.
Smart Machine Smart Decision Figure 32: Big carton drawing Table 40: Big Carton size Length（±10mm） Width（±10mm） Height（±10mm） Module number 280 280 1000*4=4000 380 SIM7020G_User Manual_V1.
Smart Machine Smart Decision 9 Appendix 9.1 Related Documents Table 41: Related Documents NO. [1] [2] Title SIM70X0 Series_AT Command Manual_V1.xx ITU-T Draft new recommendationV.25ter Description AT Command Manual Serial asynchronous automatic dialing and control Digital cellular telecommunications (Phase 2+); AT command set for GSM Mobile Equipment (ME) Support GSM 07.
Smart Machine Smart Decision [16] EN 301 489-24 V1.2.1 Electromagnetic compatibility and Radio Spectrum Matters (ERM); Electromagnetic Compatibility (EMC) standard for radio equipment and services; Part 24: Specific conditions for IMT-2000 CDMA Direct Spread (UTRA) for Mobile and portable (UE) radio and ancillary equipment [17] IEC/EN60950-1(2001) Safety of information technology equipment (2000) [18] 3GPP TS 51.
Smart Machine Smart Decision 9.
Smart Machine Smart Decision PCS RF RMS RTC SIM SMS SMPS TDMA TE TX UART VSWR SM NC EDGE HSDPA HSUPA ZIF WCDMA VCTCXO SIM UMTS UART PSM Personal Communication System, also referred to as GSM 1900 Radio Frequency Root Mean Square (value) Real Time Clock Subscriber Identification Module Short Message Service Switched-mode power supply Time Division Multiple Access Terminal Equipment, also referred to as DTE Transmit Direction Universal Asynchronous Receiver & Transmitter Voltage Standing Wave Ratio SIM phon
Smart Machine Smart Decision 9.3 Safety Caution Table 43: 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.
Smart Machine Smart Decision E. INTEGRATION INSTRUCTIONS 1.1 List of applicable FCC rules FCC Rule Part 22H，FCC Rule Part 24E，FCC Rule Part 27 and FCC Rule Part 90 1.2 Summarize Summarize the the specific specific operational operational use use conditions conditions 1.2 None. None. 1.3 Limited module procedures None. 1.4 Trace antenna designs Refer to sections 4.2 and 4.3. 1.
Smart Machine Smart Decision Contact us: Shanghai SIMCom Wireless Solutions Limited. Address: Building B, No.633 Jinzhong Road, Changning District, Shanghai P.R.China 200335 Tel: +86 21 3157 5100\3157 5200 Email: simcom@simcom.com Website: www.simcom.com Technical Support EMEA APAC America West Europe we-support@simcom.com ASEAN asean-support@simcom.com North America us-support@simcom.com East Europe ee-support@simcom.com Australia and New Zealand anz-support@simcom.
