Simcom 201606 LTE-FDD/HSPA MODULE User Manual SIM7500A V1 00 20160817

Shanghai Simcom Ltd. LTE-FDD/HSPA MODULE SIM7500A V1 00 20160817

Contents

SIM7500A_User Manual_V1.00 20160817

SIM7500A_User Manual_V1.01
Smart Machine Smart Decision Document Title SIM7500A_User Manual Version V1.01 Date 2016-07-06 Status Released Document Control ID SIM7500A_User Manual_V1.01 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. SIMCom has not undertaken any independent search for additional relevant information, including any information that may be in the customer’s possession. Furthermore, the system validation of the product designed by SIMCom within a larger electronic system remains the responsibility of the customer or the customer’s system integrator. All specifications supplied herein are subject to change without notice. Copyright This document contains the proprietary technical information which is the property of SIMCom Limited, copying of this document, giving it to others, the using or communication of the contents thereof are forbidden without the official authority by SIMCom. Offenders are liable to the payment of the damages. All rights are reserved in the event of grant of a patent or the registration of a utility model or design. All specifications supplied herein are subject to change without notice Copyright © SIMCom Wireless Solutions Co., Ltd. 2016 SIM7500A_User Manual_V1.01 2016-07-06 2
Smart Machine Smart Decision Contents Contents .............................................................................................................................................3 Table Index ........................................................................................................................................5 Figure Index ......................................................................................................................................6 Revision History ................................................................................................................................7 1 Introduction ................................................................................................................................8 1.1 Product Outline .....................................................................................................................8 1.2 Hardware Interface Overview ...............................................................................................8 1.3 Hardware Block Diagram......................................................................................................9 1.4 Functional Overview .............................................................................................................9 2 Package Information................................................................................................................ 11 2.1 Pin Assignment Overview ................................................................................................... 11 2.2 Pin Description ....................................................................................................................13 2.3 Mechanical Information ......................................................................................................15 2.4 Footprint Recommendation .................................................................................................16 3 Interface Application ...............................................................................................................17 3.1 Power Supply ......................................................................................................................17 3.1.1 Power supply Design Guide .........................................................................................17 3.1.2 Recommended Power Supply Circuit ..........................................................................18 3.1.3 Voltage Monitor ............................................................................................................19 3.2 Power on/Power off/Reset Function ....................................................................................19 3.2.1 Power on .......................................................................................................................19 3.2.2 Power off ......................................................................................................................20 3.2.3 Reset Function ..............................................................................................................21 3.3 UART Interface ...................................................................................................................22 3.3.1 UART Design Guide ....................................................................................................22 3.3.2 RI and DTR Behavior ...................................................................................................24 3.4 USB Interface ......................................................................................................................24 3.4.1 USB Application Guide ................................................................................................25 3.5 USIM Interface....................................................................................................................25 3.5.1 USIM Application Guide ..............................................................................................26 3.5.2 SIM Card Design Guide ...............................................................................................26 3.5.3 Recommended USIM Card Holder ..............................................................................27 3.6 PCM Interface .....................................................................................................................28 3.6.1 PCM Timing .................................................................................................................28 3.6.2 PCM Application Guide ...............................................................................................29 3.7 I2C Interface........................................................................................................................30 3.7.1 I2C Design Guide .........................................................................................................30 3.8 Network Status ....................................................................................................................31 3.9 Operating Status Indication .................................................................................................31 3.10 Pin Multiplex Function ....................................................................................................31 3.11 Other interface .................................................................................................................32 SIM7500A_User Manual_V1.01 2016-07-06 3
Smart Machine Smart Decision 3.11.1 Sink Current Source ..................................................................................................32 3.11.2 ADC ..........................................................................................................................33 4 RF Specifications ......................................................................................................................34 4.1 WCDMA/LTE RF Specifications........................................................................................34 4.2 WCDMA/LTE Antenna Design Guide ................................................................................35 5 Electrical Specifications ...........................................................................................................38 5.1 Absolute Maximum Ratings................................................................................................38 5.2 Operating Conditions ..........................................................................................................38 5.3 Operating Mode ..................................................................................................................39 5.3.1 Operating Mode Definition ..........................................................................................39 5.3.2 Sleep Mode ...................................................................................................................40 5.3.3 Minimum Functionality Mode and Flight Mode ..........................................................40 5.4 Current Consumption ..........................................................................................................40 5.5 ESD Notes ...........................................................................................................................41 6 SMT Production Guide ...........................................................................................................42 6.1 Top and Bottom View of Module ........................................................................................42 6.2 Label Information ................................................................................................................42 6.3 Typical SMT Reflow Profile ...............................................................................................43 6.4 Moisture Sensitivity Level (MSL) ......................................................................................43 6.5 Stencil Foil Design Recommendation .................................................................................44 7 Packaging ..................................................................................................................................45 Appendix ..........................................................................................................................................47 A. Reference Design ......................................................................................................................47 B. Coding Schemes and Maximum Net Data Rates over Air Interface.........................................48 C. Related Documents ...................................................................................................................50 D. Terms and Abbreviations ..........................................................................................................52 E. Safety Caution ...........................................................................................................................54 SIM7500A_User Manual_V1.01 2016-07-06 4
Smart Machine Smart Decision Table Index Table 1: SIM7500 series frequency bands............................................................................................................ 8 Table 2: General features ..................................................................................................................................... 9 Table 3: Pin Definitions ..................................................................................................................................... 12 Table 4: IO parameters definition....................................................................................................................... 13 Table 5: Pin description ...................................................................................................................................... 13 Table 6: VBAT Pins electronic characteristic ..................................................................................................... 17 Table 7: Recommended zener diode list ............................................................................................................. 18 Table 8: Power on timing and electronic characteristic ...................................................................................... 20 Table 9: Power off timing and Electronic Characteristic .................................................................................... 21 Table 10: RESET pin electronic characteristic ................................................................................................... 22 Table 11: USIM Electronic characteristic in 1.8V mode (USIM_VDD=1.8V) .................................................. 25 Table 12: USIM Electronic characteristic 3.0V mode (USIM_VDD=2.95V) .................................................... 26 Table 13: Amphenol USIM Socket Pin Description ........................................................................................... 27 Table 14: PCM Format ....................................................................................................................................... 28 Table 15: PCM Timing Parameters .................................................................................................................... 29 Table 16: NETLIGHT pin status ........................................................................................................................ 31 Table 17: Pin definition of the STATUS............................................................................................................. 31 Table 18: Pin multiplex function list .................................................................................................................. 32 Table 19: Sink current electronic characteristic ................................................................................................. 32 Table 20: ADC Electronic Characteristics .......................................................................................................... 33 Table 21: Conducted transmission power .......................................................................................................... 34 Table 22: Operating frequencies ........................................................................................................................ 34 Table 23: Conducted receive sensitivity ............................................................................................................. 35 Table 24: Reference sensitivity (QPSK) ............................................................................................................ 35 Table 25: Trace Loss .......................................................................................................................................... 35 Table 26: Recommended TVS ........................................................................................................................... 37 Table 28: Absolute maximum ratings ................................................................................................................. 38 Table 29: Recommended operating ratings ........................................................................................................ 38 Table 30: 1.8V Digital I/O characteristics* ........................................................................................................ 38 Table 31: Operating temperature ........................................................................................................................ 39 Table 32: Operating mode Definitions ............................................................................................................... 39 Table 33: Current consumption on VBAT Pins (VBAT=3.8V) .......................................................................... 40 Table 34: The ESD performance measurement table (Temperature: 25℃, Humidity: 45%) ............................. 41 Table 35: The Description of Label Information ................................................................................................ 43 Table 36: Moisture Sensitivity Level and Floor Life ......................................................................................... 44 Table 37: Tray size ............................................................................................................................................. 45 Table 38: Small Carton size ............................................................................................................................... 46 Table 39: Big carton size .................................................................................................................................... 46 Table 40: Coding schemes and maximum net data rates over air interface ........................................................ 48 Table 41: Related documents ............................................................................................................................. 50 Table 42: Terms and Abbreviations .................................................................................................................... 52 Table 43: Safety caution ..................................................................................................................................... 54 SIM7500A_User Manual_V1.01 2016-07-06 5
Smart Machine Smart Decision Figure Index Figure 1: SIM7500 series Block Diagram ............................................................................................................ 9 Figure 2: Pin assignment overview .................................................................................................................... 11 Figure 3: Dimensions (Unit: mm) ...................................................................................................................... 15 Figure 4: Footprint recommendation (Unit: mm) ............................................................................................... 16 Figure 5: Power supply application circuit......................................................................................................... 17 Figure 6: Linear regulator reference circuit ....................................................................................................... 18 Figure 7: Switching mode power supply reference circuit ................................................................................. 18 Figure 8: Reference Power on/off Circuit .......................................................................................................... 19 Figure 9: Power on timing sequence .................................................................................................................. 20 Figure 10: Power off timing sequence ............................................................................................................... 21 Figure 11: Reference reset circuit ...................................................................................................................... 22 Figure 12: UART full modem ............................................................................................................................ 23 Figure 13: UART null Modem ........................................................................................................................... 23 Figure 14: Reference circuit of level shift .......................................................................................................... 23 Figure 15: RI behaviour（SMS and URC report） ........................................................................................... 24 Figure 16: RI behaviour（voice call） .............................................................................................................. 24 Figure 17: USB reference circuit ....................................................................................................................... 25 Figure 18: USIM interface reference circuit ...................................................................................................... 26 Figure 19: Amphenol SIM card socket .............................................................................................................. 27 Figure 20: PCM_SYNC timing .......................................................................................................................... 28 Figure 21: EXT codec to module timing ............................................................................................................ 28 Figure 22: Module to EXT codec timing ........................................................................................................... 29 Figure 23: Audio codec reference circuit ........................................................................................................... 30 Figure 24: I2C reference circuit ......................................................................................................................... 30 Figure 25: NETLIGHT reference circuit ............................................................................................................ 31 Figure 26: ISINK reference circuit..................................................................................................................... 32 Figure 27: Antenna matching circuit (MAIN_ANT) .......................................................................................... 36 Figure 28: Antenna matching circuit (DIV_ANT) ............................................................................................. 36 Figure 31: Top and bottom view of Module ....................................................................................................... 42 Figure 32: Label Information ............................................................................................................................. 42 Figure 33: The ramp-soak-spike Reflow Profile of Module............................................................................... 43 Figure 34: Packaging introduce ......................................................................................................................... 45 Figure 35: Module tray drawing introduce ......................................................................................................... 45 Figure 36: Small carton drawing introduce ........................................................................................................ 46 Figure 37: Big carton drawing introduce ........................................................................................................... 46 Figure 38: Reference design .............................................................................................................................. 47 SIM7500A_User Manual_V1.01 2016-07-06 6
Smart Machine Smart Decision Revision History Data Version Description of change Author 2016-07-06 V1.01 new Shengwu.sun SIM7500A_User Manual_V1.01 2016-07-06 7
Smart Machine Smart Decision 1 Introduction This document describes the electronic specifications, RF specifications, interfaces, mechanical characteristics and testing results of the SIMCom SIM7500 series. With the help of this document and other software application notes/user guides, users can understand and use modules to design and develop applications quickly. 1.1 Product Outline The SIM7500A support many air-interface standards, refer to the following table. Table 1: SIM7500 series frequency bands Standard Frequency SIM7500A WCDMA BAND2  BAND5  LTE LTE-FDD B1 LTE-FDD B2  LTE-FDD B3 LTE-FDD B4  LTE-FDD B7 LTE-FDD B8 LTE-FDD B17  LTE-FDD B20 With a small physical dimension of 24*27*2.75 mm and with the functions integrated, the Module can meet almost any space requirement in users’ applications, such as smart phones, PDA’s, industrial handhelds, machine-to-machine, vehicle applications, etc. 1.2 Hardware Interface Overview The interfaces that are described in detail in the next chapters include: ● Power Supply ● USB Interface ● UART Interface ● USIM Interface ● GPIO ● ADC ● Power Output ● Current Sink Source ● PCM Interface ● I2C Interface SIM7500A_User Manual_V1.01 2016-07-06 8
Smart Machine Smart Decision 1.3 Hardware Block Diagram The block diagram of the Module is shown in the figure below. GSM/WCDMA/LTERF FEMGSM/ WCDMA/LTE PARF TransceiverBasebandXO19.2MHzNANDFlashI2C PCMInterruptStatus LED{USBUSIMPower OnResetUARTGPIOsADCLDOVBATSink Current SourceDDRMain AntennaPowerManagementQualcomm ChipSMT InterfaceWCDMA/LTERF FEMAUX AntennaTXRX RXSYSTEM POWERVBAT GNSS RFGNSS Antenna Figure 1: SIM7500 series Block Diagram 1.4 Functional Overview Table 2: General features Feature Implementation Power supply Single supply voltage 3.4～4.2V Power saving Current in sleep mode : <5mA Radio frequency bands Please refer to the table 1 Transmitting power WCDMA: Class 3 (0.25W) LTE: Class 3 (0.25W) Data Transmission Throughout HSPA+: 5.76 Mbps(UL), 42 Mbps(DL) LTE Category 1: 10 Mbps (DL) LTE Category 1: 5 Mbps (UL) Antenna WCDMA /LTE main antenna WCDMA /LTE auxiliary antenna SMS MT, MO, CB, Text and PDU mode SMS storage: USIM card or ME(default) Transmission of SMS alternatively over CS or PS. USIM interface Support identity card: 1.8V/ 3V USIM application toolkit Support SAT class 3, GSM 11.14 Release 98 SIM7500A_User Manual_V1.01 2016-07-06 9
Smart Machine Smart Decision Support USAT Phonebook management Support phonebook types: DC,MC,RC,SM,ME,FD,ON,LD,EN Audio feature Support PCM interface Only support PCM master mode and short frame sync, 16-bit linear data formats UART interface A full modem serial port by default Baud rate: 300bps to 4Mbps(default:115200bps) Auto-bauding baud rate: 9600,19200,38400,57600,115200bps Can be used as the AT commands or data stream channel. Support RTS/CTS hardware handshake Multiplex ability according to GSM 07.10 Multiplexer Protocol. USB USB 2.0 specification-compliant as a peripheral Firmware upgrade USB Firmware upgrade over USB interface USB 2.0 specification-compliant as a peripheral Physical characteristics Weight:4.0 g Size:24*27*2.75mm Temperature range Normal operation temperature: -30°C to +80°C Extended operation temperature: -40°C to +85°C* Storage temperature -45°C to +90°C *Note: Module is able to make and receive voice calls, data calls, SMS and make WCDMA/HSPA+/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. SIM7500A_User Manual_V1.01 2016-07-06 10
Smart Machine Smart Decision 2 Package Information 2.1 Pin Assignment Overview All functions of the SIM7500 series will be provided through 56 pads that will be connected to the customers’ platform. The following Figure is a high-level view of the pin assignment of the SIM7500 series. DBG_TXDDBG_TXDI2S_MCLKLTE_ACTIVESIM7500xTop ViewMAIN_ANTNETLIGHTSTATUS234567893616151413123938137GNDGNDGNDGND101140424143GND2827262524232221201918172930313233343556444546474849505152535455DIV_ANTSCLSDAGNDUSB_DMUSB_DPVBUSSIM_DATASIM_CLKSIM_DETSIM_RSTSIM_VDDGNDGNDPCM_CLKPCM_SYNCPCM_INPCM_OUTGNDL11_1V8RESETADCGPIO_1ISINKGNDPWRKEYGNDGNDVBATVBATGNDRTSDCDTXDRXDDTRCTSRIGNDGNDGPIO_37GPIO_49GNDGNDGNSS_ANTGND Figure 2: Pin assignment overview SIM7500A_User Manual_V1.01 2016-07-06 11
Smart Machine Smart Decision Table 3: Pin Definitions Pin No. Pin Name Pin No. Pin Name 1 GND 2 DIV_ANT 3 GND 4 SCL 5 SDA 6 GND 7 USB_DM 8 USB_DP 9 VBUS 10 USIM_DATA 11 USIM_CLK 12 USIM_DET 13 USIM_RST 14 USIM_VDD 15 GND 16 GND 17 MCLK 18 PCM_CLK 19 PCM_SYNC 20 PCM_IN 21 PCM_OUT 22 GND 23 L11_1V8 24 RESET 25 ADC 26 GPIO_1 27 ISINK 28 GND 29 GND 30 PWRKEY 31 GND 32 GND 33 VBAT 34 VBAT 35 GND 36 RTS 37 DCD 38 TXD 39 RXD 40 DTR 41 CTS 42 RI 43 GND 44 GND 45 MAIN_ANT 46 GND 47 GND 48* GPIO_37 49 GPIO_49 50 STATUS 51 DBG_TXD 52 NETLIGHT 53 GND 54 GND 55 GNSS_ANT 56 GND *Note: SIM7500A could not support GNSS Function. Before the normal power up, pin48 cannot be pulled up. SIM7500A_User Manual_V1.01 2016-07-06 12
Smart Machine Smart Decision 2.2 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 name Pin No. Default status Description Comment Power Supply VBAT 33,34 PI Power supply, voltage range: 3.4～4.2V. L11_1V8 23 PO 1.8V output with Max. 50Ma current output for external circuit, such as level shift circuit. If unused, keep it open. GND 1, 3, 6, 15,16,22,28,29,31,32,35, 43,44,46,47,53,54,56 Ground System Control PWRKEY 30 DI,PU System power on/off control input, active low. Default 0.8V RESET 24 DI, PU System reset control input, active low. RESET has been pulled up to 1.8V via a resistor internally. USIM interface USIM_DATA 10 I/O,PU USIM Card data I/O, which has been pulled up via a 100KR resistor to USIM_VDD internally. All lines of USIM interface should be protected against ESD. USIM_RST 13 DO USIM Reset SIM7500A_User Manual_V1.01 2016-07-06 13
Smart Machine Smart Decision USIM_CLK 11 DO USIM clock USIM_VDD 14 PO Power output for USIM card, its output Voltage depends on USIM card type automatically. Its output current is up to 50Ma. USB VBUS 9 DI,PD Valid USB detection input with 3.6～5.85V detection voltage USB_DM 7 I/O Negative line of the differential, bi-directional USB signal. USB_DP 8 I/O Positive line of the differential, bi-directional USB signal. UART interface RTS 36 DOH Request to send If unused, keep them open. CTS 41 DI,PU Clear to Send RXD 39 DI,PU Receive Data RI 42 DOH Ring Indicator DCD 37 DOH Carrier detects TXD 38 DOH Transmit Data DTR 40 DI,PU DTE get ready I2C interface SCL 4 DO I2C clock output If unused, keep them open. SDA 5 I/O I2C data input/output PCM interface PCM_OUT 21 DO PCM data output. If unused, please keep them open. PCM_IN 20 DI PCM data input. PCM_SYNC 19 DO PCM data frame sync signal. PCM_CLK 18 DO PCM data bit clock. MCLK 17 DO Audio Master clock GPIO NETLIGHT 52 DO LED control output as network status indication. If unused, please keep them open. STATUS 50 DO Operating status output. High level: Power on and firmware ready Low level: Power off GPIO_1 26 IO GPIO GPIO_49 49 IO GPIO USIM_DET 12 IO Default: GPIO Optional: USIM card detecting input. H: USIM is removed L: USIM is inserted GPIO_37 48 IO GPIO SIM7500A_User Manual_V1.01 2016-07-06 14
Smart Machine Smart Decision RF interface MAIN _ANT 45 AIO MAIN antenna soldering pad DIV_ANT 2 AI Auxiliary antenna soldering pad NC 55 AI Other interface ISINK 27 AI Ground-referenced current sink. If unused, please keep them open. DGB_TXD 51 DO Use for debug ADC 25 AI Analog-digital converter input 2.3 Mechanical Information The following figure shows the package outline drawing of Module. Figure 3: Dimensions (Unit: mm) SIM7500A_User Manual_V1.01 2016-07-06 15
Smart Machine Smart Decision 2.4 Footprint Recommendation Figure 4: Footprint recommendation (Unit: mm) SIM7500A_User Manual_V1.01 2016-07-06 16
Smart Machine Smart Decision 3 Interface Application 3.1 Power Supply On VBAT pads, a ripple current up to 2A typically, may cause voltage drop. Therefore, the power supply for these pads must be able to provide sufficient current up to more than 2A in order to avoid the voltage drop of more than 300mV. Table 6: VBAT Pins electronic characteristic Symbol Description Min. Typ. Max. Unit VBAT Module power voltage 3.4 3.8 4.2 V IVBAT(peak) Module power peak current in normal mode. 1.0 - 2 A IVBAT(average) Module power average current in normal mode Please refer to the table 34 IVBAT(sleep) Power supply current in sleep mode IVBAT(power-off) Module power current in power off mode. - - 20 uA 3.1.1 Power supply Design Guide Make sure that the voltage on the VBAT pins will never drop below 3.4V. Note: If the power supply for BAT pins can support up to 2A, using a total of more than 220uF capacitors is recommended, or else users must use a total of 1000uF capacitors, in order to avoid the voltage drop of more than 300mV. Some multi-layer ceramic chip (MLCC) capacitors (0.1/1uF) with low ESR in high frequency band can be used for EMC. These capacitors should be put as close as possible to VBAT pads. Also, user should keep VBAT trace on the circuit board wider than 2 mm to minimize PCB trace impedance. The following figure shows the recommended circuit. VBATVBAT34333231GNDGNDMODULEC101FB1015.1V500mW220uFVBAT33pFC102 Figure 5: Power supply application circuit SIM7500A_User Manual_V1.01 2016-07-06 17
Smart Machine Smart Decision In addition, in order to guard over voltage protection, it is suggested to use a zener diode with 5.1V reverse zener voltage and more than 500mW power dissipation. Table 7: Recommended zener diode list No. Manufacturer Part Number power dissipation Package 1 On semi MMSZ5231BT1G 500mW SOD123 2 Prisemi PZ3D4V2H 500mW SOD323 3 Vishay MMSZ4689-V 500mW SOD123 4 Crownpo CDZ55C5V1SM 500mW 0805 3.1.2 Recommended Power Supply Circuit It is recommended that a switching mode power supply or linear regulator power supply is used. It is important to make sure that all the components used in the power supply circuit can resist a peak current up to 2A. The following figure shows the linear regulator reference circuit with 5V input and 3.8V output. Vin VoutGNDFB3+PWR_CTRLR102R101VBAT100K47K+C103330uFC104100nFU101 MIC293025412C101 C102100uF 1uFDC INPUTR103470ROn/OffFUSE Figure 6: Linear regulator reference circuit If there is a big voltage difference between input and output for VBAT power supply, or the efficiency is extremely important, then a switching mode power supply will be preferable. The following figure shows the switching mode power supply reference circuit. FUSEVin VoutFBU10112345LM2596- ADJ+100uHMBR360L101C101 +C102D102 C103R102R101FB101330uFVBAT2.2K1K100uF 1uFC104100nF270 ohm@100Mhz DC INPUTPWR_CTRLGNDOn/Off Figure 7: Switching mode power supply reference circuit Note: The Switching Mode power supply solution for VBAT must be chosen carefully against Electro Magnetic Interference and ripple current from depraving RF performance. SIM7500A_User Manual_V1.01 2016-07-06 18
Smart Machine Smart Decision 3.1.3 Voltage Monitor To monitor the VBAT voltage, the AT command “AT+CBC” can be used. For monitoring the VBAT voltage outside or within a special range, the AT command “AT+CVALARM” can be used to enable the under-voltage warning function. If users need to power off Module, when the VBAT voltage is out of a range, the AT command “AT+CPMVT” can be used to enable under-voltage power-off function. Note: Under-voltage warning function and under-voltage power-off function are disabled by default. For more information about these AT commands, please refer to Document [1]. 3.2 Power on/Power off/Reset Function 3.2.1 Power on Module can be powered on by pulling the PWRKEY pin down to ground. The PWRKEY pin has been pulled up to dVDD internally, so you does not need to pull it up externally. It is strongly recommended to put a100nF capacitor and an ESD protection diode close to the PWRKEY pin. Please refer to the following figure for the recommended reference circuit. 47KPWRKEYPowerOn off logicDiodedVDDMODULE100Ω100nF4.7KTurn on /offimpulse Figure 8: Reference Power on/off Circuit The power-on scenarios are illustrated in the following figure. SIM7500A_User Manual_V1.01 2016-07-06 19
Smart Machine Smart Decision STATUS(Output)TonVBATPWRKEY(Input)Ton(status)UART Port Undefined ActiveTon(uart)Undefined ActiveUSB Port Ton(usb) Figure 9: Power on timing sequence Table 8: Power on timing and electronic characteristic Symbol Parameter Min. Typ. Max. Unit Ton The time of active low level impulse of PWRKEY pin to power on module 100 500 - ms Ton(status) The time from power-on issue to STATUS pin output high level(indicating power up ready ) 22 - - s Ton(uart) The time from power-on issue to UART port ready 20 s Ton(usb) The time from power-on issue to USB port ready 20 s VIH Input high level voltage on PWRKEY pin 0.6 0.8 1.8 V VIL Input low level voltage on PWRKEY pin -0.3 0 0.5 V 3.2.2 Power off The following methods can be used to power off Module. ● Method 1: Power off Module by pulling the PWRKEY pin down to ground. ● Method 2: Power off Module by AT command “AT+CPOF”. ● Method 3: Over-voltage or under-voltage automatic power off. The voltage range can be set by AT command “AT+CPMVT”. ● Method 4: Over-temperature or under-temperature automatic power off. Note: If the temperature is outside the range of -30~+80℃, some warning will be reported via AT port. If the temperature is outside the range of -40~+85℃, M odu l e wi l l be powered automatically. SIM7500A_User Manual_V1.01 2016-07-06 20
Smart Machine Smart Decision For details about “AT+CPOF” and “AT+CPMVT”, please refer to Document [1]. These procedures will make modules disconnect from the network and allow the software to enter a safe state and save data before modules are powered off completely. The power off scenario by pulling down the PWRKEY pin is illustrated in the following figure. (Output)Toff(Input)Toff(status)UART Port UndefinedActiveToff(uart)TonToff-onUSB Port UndefinedActiveToff(usb)PWRKEYSTATUS Figure 10: Power off timing sequence Table 9: Power off timing and Electronic Characteristic Symbol Parameter Time value Unit Min. Typ. Max. Toff The active low level time pulse on PWRKEY pin to power off module 2.5 -- -- s Toff(status) The time from power-off issue to STATUS pin output low level(indicating power off )* 22 - - s Toff(uart) The time from power-off issue to UART port off 15 - - s Toff(usb) The time from power-off issue to USB port off 15 - - s Toff-on The buffer time from power-off issue to power-on issue 0 - - s 3.2.3 Reset Function Module can be reset by pulling the RESET pin down to ground. Note: This function is only used as an emergency reset when AT command “AT+CPOF” and the PWRKEY pin all have lost efficacy. SIM7500A_User Manual_V1.01 2016-07-06 21
Smart Machine Smart Decision The RESET pin has been pulled up to 1.8V internally, so it does not need to be pulled up externally. It is strongly recommended to put a100nF capacitor and an ESD protection diode close to the RESET pin. Please refer to the following figure for the recommended reference circuit. ResetimpulseRESET ResetLogicR1.8VMODULE100Ω100nF Figure 11: Reference reset circuit Table 10: RESET pin electronic characteristic Symbol Description Min. Typ. Max. Unit Treset The active low level time impulse on RESET pin to reset module 100 ms VIH Input high level voltage 1.17 1.8 2.1 V VIL Input low level voltage -0.3 0 0.8 V 3.3 UART Interface Module provides a 7-wire UART (universal asynchronous serial transmission) interface as DCE (Data Communication Equipment). AT commands and data transmission can be performed through UART interface. 3.3.1 UART Design Guide The following figures show the reference design. SIM7500A_User Manual_V1.01 2016-07-06 22
Smart Machine Smart Decision TXDRXDRTSCTSDTRDCDRITXDRXDRTSCTSDTRDCDRINGMODULE ( DCE) HOST ( DTE)UARTUART Figure 12: UART full modem MODULE ( DCE)HOST ( DTE)UARTUARTTXDRXDRTSCTSDTRDCDRITXDRXDRTSCTSDTRDCDRINGInterruptWake up host Figure 13: UART null Modem The Module UART is 1.8V voltage interface. If user’s UART application circuit is a 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. TXDRXDRTSCTSDTRDCDRI A7A1A2A3A4A5A6MODULEUART port A8B7B1B2B3B4B5B6B8VCCAOEVDD_1V8 or External 1V8100nF3.3V100nFVCCBGNDTXD_3.3VRXD_3.3VRTS_3.3VCTS_3.3VDTR_3.3VDCD_3.3VRI_3.3V47K 47K Figure 14: Reference circuit of level shift To comply with RS-232-C protocol, the RS-232-C level shifter chip should be used to connect Module to the RS-232-C interface, for example SP3238ECA, etc. Note: Module supports the following baud rates: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600, 3200000, 3686400, 4000000bps. The default band rate is 115200bps. SIM7500A_User Manual_V1.01 2016-07-06 23
Smart Machine Smart Decision 3.3.2 RI and DTR Behavior The RI pin can be used to interrupt output signal to inform the host controller such as application CPU. Normally RI will stay at high level until certain conditions such as receiving SMS, or a URC report come in. It will then change to low level. It will stay low until the host controller clears the interrupted event with “AT+CRIRS” AT command. IdleHIGHLOWReceiving SMS and any URC report coming. AT+CFGRI=1RIClear by AT+CRIRSIdleHIGHLOWReceiving SMS . AT+CFGRI=0RIClear by AT+CRIRS Figure 15: RI behaviour（SMS and URC report） Normally RI will be kept high until a voice call, then it will output periodic rectangular wave with 5900ms low level and 100ms high level. It will output this kind of periodic rectangular wave until the call is answered or hung up. HIGHLOW Idle RingEstablish the callHang up the call IdleRI 100ms5900ms Figure 16: RI behaviour（voice call） Note: For more details of AT commands about UART, please refer to document [1] and [22]. DTR pin can be used to wake Module from sleep. When Module enters sleep mode, pulling down DTR can wake Module. 3.4 USB Interface The Module contains a USB interface compliant with the USB2.0 specification as a peripheral, but the USB charging function is not supported. SIM7500A_User Manual_V1.01 2016-07-06 24
Smart Machine Smart Decision 3.4.1 USB Application Guide Module can be used as a USB device. Module supports the USB suspend and resume mechanism which can reduce power consumption. If there is no data transmission on the USB bus, Module will enter suspend mode automatically and will be resumed by some events such as voice call, receiving SMS, etc. USB_VBUSUSB_DMUSB_DPGNDMODULE HOSTUSB USBVBUSD-D+GNDD2D1BeadD3L Figure 17: USB reference circuit Because of the high bit rate 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 should be less than 1pF. It is recommended to use an ESD protection component such as ESD9L5.0ST5G provided by On Semiconductor (www.onsemi.com ). D3 is suggested to select the diode with anti-ESD and voltage surge function, or customer could add a ZENER diode for surge clamping. The recommend diodes list please refer to table 7. L is recommended (MURATA) DLW21SN371SQ2L. Note：The USB_DM and USB_DP nets must be traced by 90Ohm+/-10% differential impedance. 3.5 USIM Interface Module supports both 1.8V and 3.0V USIM Cards. Table 11: USIM Electronic characteristic in 1.8V mode (USIM_VDD=1.8V) Symbol Parameter Min. Typ. Max. Unit USIM_VDD LDO power output voltage 1.75 1.8 1.95 V VIH High-level input voltage 0.65*USIM_VDD - USIM_VDD +0.3 V VIL Low-level input voltage -0.3 0 0.35*USIM_VDD V VOH High-level output voltage USIM_VDD -0.45 - USIM_VDD V VOL Low-level output voltage 0 0 0.45 V SIM7500A_User Manual_V1.01 2016-07-06 25
Smart Machine Smart Decision Table 12: USIM Electronic characteristic 3.0V mode (USIM_VDD=2.95V) Symbol Parameter Min. Typ. Max. Unit USIM_VDD LDO power output voltage 2.75 2.95 3.05 V VIH High-level input voltage 0.65*USIM_VDD - USIM_VDD +0.3 V VIL Low-level input voltage -0.3 0 0.25*USIM_VDD V VOH High-level output voltage USIM_VDD -0.45 - USIM_VDD V VOL Low-level output voltage 0 0 0.45 V 3.5.1 USIM 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 USIM peripheral circuit should be close to the USIM card socket. The following figure shows the 6-pin SIM card holder reference circuit. MODULEUSIM_VDDUSIM_CLKUSIM_DATAUSIM_RST VCC GNDRST VPPCLK I/O51Ω100nFC707 10M006 512SIM CARD51Ω51Ω22pF22pF22pF ESDA6V1 Figure 18: USIM interface reference circuit Note: USIM_DATA has been pulled up with a 100KΩ resistor to USIM_VDD in module. A 100nF capacitor on USIM_VDD is used to reduce interference. For more details of AT commands about USIM, please refer to document [1]. 3.5.2 SIM Card Design Guide SIM card signal could be interferenced by some high frequency signal, it is strongly recommended to follow these guidelines while designing:  SIM card holder should be far away from antenna  SIM traces should keep away from RF lines, VBAT and high-speed signal lines SIM7500A_User Manual_V1.01 2016-07-06 26
Smart Machine Smart Decision  The traces should be as short as possible  Keep SIM card holder’s GND connect to main ground directly  Shielding the SIM card signal by ground well  Recommended to place a 100nF capacitor on SIM_VDD line and keep close to the SIM card holder  Add some TVS which parasitic capacitance should not exceed 50pF  Add 51Ω resistor to (SIM_RST/SIM_CLK/SIM_DATA) signal could enhance ESD protection  Add 22pF capacitor to (SIM_RST/SIM_CLK/SIM_DATA) signal to induce RF signal interference 3.5.3 Recommended USIM Card Holder It is recommended to use the 6-pin USIM socket such as C707 10M006 512 produced by Amphenol. User can visit http://www.amphenol.com for more information about the holder. Figure 19: Amphenol SIM card socket Table 13: Amphenol USIM Socket Pin Description Pin Signal Description C1 USIM_VDD USIM Card Power supply. C2 USIM_RST USIM Card Reset. C3 USIM_CLK USIM Card Clock. C5 GND Connect to GND. C6 VPP C7 USIM_DATA USIM Card data I/O. SIM7500A_User Manual_V1.01 2016-07-06 27
Smart Machine Smart Decision 3.6 PCM Interface Module provides a PCM interface for external codec, which can be used in master mode with short sync and 16 bits linear format. Table 14: PCM Format Note: For more details about PCM AT commands, please refer to document [1]. 3.6.1 PCM Timing Module supports 2.048 MHz PCM data and sync timing for 16 bits linear format codec. Figure 20: PCM_SYNC timing Figure 21: EXT codec to module timing 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 SIM7500A_User Manual_V1.01 2016-07-06 28
Smart Machine Smart Decision Figure 22: Module to EXT codec timing Table 15: PCM Timing Parameters Parameter Description Min. Typ. Max. Unit T(sync) PCM_SYNC cycle time – 125 – μs T(synch) PCM_SYNC high level time – 488 – ns T(syncl) PCM_SYNC low level time – 124.5 – μs T(clk) PCM_CLK cycle time – 488 – ns T(clkh) PCM_CLK high level time – 244 – ns T(clkl) PCM_CLK low level time – 244 – ns T(susync) PCM_SYNC setup time high before falling edge of PCM_CLK – 122 – ns T(hsync) PCM_SYNC hold time after falling edge of PCM_CLK – 366 – ns T(sudin) PCM_IN setup time before falling edge of PCM_CLK 60 – – ns T(hdin) PCM_IN hold time after falling edge of PCM_CLK 60 – – ns T(pdout) Delay from PCM_CLK rising to PCM_OUT valid – – 60 ns T(zdout) Delay from PCM_CLK falling to PCM_OUT HIGH-Z – – 60 ns 3.6.2 PCM Application Guide The following figure shows the external codec reference design. SIM7500A_User Manual_V1.01 2016-07-06 29
Smart Machine Smart Decision MODULEPCM_INPCM_SYNCPCM_CLKPCM_OUT33pFADCOUTFSBCLKDACINMCLKSCLKSDIOSCLSDAVDDAVDDSPKVDDD3.3V 3.8V VDD_1V8MIC+MIC-MICBIASMOUTMICSPKNAU88101.3K1.3K1uF1uF47uF47uF Figure 23: Audio codec reference circuit Note: Module can transmit PCM data by the USB port besides the PCM interface. For more details please refer to documents [1] and [23]. 3.7 I2C Interface Module provides a I2C interface compatible with I2C specification, version 2.1, with clock rate up to 400 kbps. Its operation voltage is 1.8V. 3.7.1 I2C Design Guide The following figure shows the I2C bus reference design. ModuleSDADeviceSDAGNDGNDSCL SCL Figure 24: I2C reference circuit Note： SDA and SCL have pull-up resistors in module. So, 2 external pull up resistors are not needed in application circuit. “AT+CRIIC and AT+CWIIC” AT commands could be used to read/write register values of the I2C peripheral devices. For more details about AT commands please refer to document [1]. SIM7500A_User Manual_V1.01 2016-07-06 30
Smart Machine Smart Decision 3.8 Network Status The NETLIGHT pin is used to control Network Status LED, its reference circuit is shown in the following figure. ModuleNETLIGHT VBAT4.7K47KR Figure 25: NETLIGHT reference circuit Note: The value of the resistor named “R” depends on the LED characteristic. Table 16: NETLIGHT pin status NETLIGHT pin status Module status Always On Searching Network/Call Connect 200ms ON, 200ms OFF Data Transmit 800ms ON, 800ms OFF Registered network OFF Power off / Sleep Note: NETLIGHT output low level as “OFF”, and high level as “ON”. 3.9 Operating Status Indication The pin50 is for operating status indication of the module. The pin output is high when module is powered on, and output is low when module is powered off. Table 17: Pin definition of the STATUS Pin name Pin number Description STATUS 50 Operating status indication Note: For timing about STATUS, please reference to the chapter “3.2 power on/down scenarios” 3.10 Pin Multiplex Function Some pins of Module could be used for alternate function besides default function. SIM7500A_User Manual_V1.01 2016-07-06 31
Smart Machine Smart Decision Table 18: Pin multiplex function list Note：For more details of AT commands about GPIO multiplex function, please refer to document [1]. 3.11 Other interface 3.11.1 Sink Current Source The ISINK pin is VBAT tolerant and intended to drive some passive devices such as LCD backlight, white LED, etc. Its output current can be up to 40 mA and be set by the AT command “AT+ CLEDITST”. Table 19: Sink current electronic characteristic Symbol Description Min. Typ. Max. Unit VISINK Voltage tolerant 0.5 - VBAT V IISINK Current tolerant 0 - 40 mA ISINK is a ground-referenced current sink. The following figure shows its reference circuit. MODULEISINKISINK pin is VBAT tolerant-suitable for driving white LEDsCurrent ControlsPassive device+-VBAT Figure 26: ISINK reference circuit Pin Number Pin Name Default Function Alternate Function 4 SCL SCL GPIO11 5 SDA SDA GPIO10 12 USIM_DET GPIO34 USIM_DET 18 PCM_CLK PCM_CLK GPIO23,SPI_CLK I2C_SCL 19 PCM_SYNC PCM_SYNC GPIO20,SPI_MOSI 20 PCM_IN PCM_IN, GPIO21,SPI_MISO 21 PCM_OUT PCM_OUT GPIO22,SPI_CS_N I2C_SDA SIM7500A_User Manual_V1.01 2016-07-06 32
Smart Machine Smart Decision Note: The sinking current can be adjusted to meet the design requirement through the AT command “AT+ CLEDITST =<0>, <value>”.The “value” ranges from 0 to 8, on behalf of the current from 0mA to 40mA by 5mA step. 3.11.2 ADC Module has 1 dedicated ADC pins named ADC. They are available for digitizing analog signals such as battery voltage and so on. These electronic specifications are shown in the following table. Table 20: ADC Electronic Characteristics Characteristics Min. Typ. Max. Unit Resolution – 15 – Bits Input Range 0.1 1.7 V Input serial resistance 1 – – MΩ Note: “AT+CADC” can be used to read the voltage of the ADC pins, for more details, please refer to document [1]. SIM7500A_User Manual_V1.01 2016-07-06 33
Smart Machine Smart Decision 4 RF Specifications 4.1 WCDMA/LTE RF Specifications Table 21: Conducted transmission power Frequency Power Min. E-GSM900 33dBm ±2dB 5dBm ± 5dB DCS1800 30dBm ±2dB 0dBm ± 5dB E-GSM900 (8-PSK) 27dBm ±3dB 5dBm ± 5dB DCS1800 (8-PSK) 26dBm +3/-4dB 0dBm ±5dB WCDMA B2 24dBm +1/-3dB <-50dBm WCDMA B5 24dBm +1/-3dB <-50dBm LTE-FDD B1 23dBm +/-2.7dB <-40dBm LTE-FDD B2 23dBm +/-2.7dB <-40dBm LTE-FDD B3 23dBm +/-2.7dB <-40dBm LTE-FDD B4 23dBm +/-2.7dB <-40dBm LTE-FDD B7 23dBm +/-2.7dB <-40dBm LTE-FDD B8 23dBm +/-2.7dB <-40dBm LTE-FDD B17 23dBm +/-2.7dB <-40dBm LTE-FDD B20 23dBm +/-2.7dB <-40dBm Table 22: Operating frequencies Frequency Receiving Transmission E-GSM900 925～960 MHz 880～915 MHz DCS1800 1805～1880 MHz 1710～1785 MHz WCDMA B2 1930~1990 MHz 1850~1910 MHz WCDMA B5 869~894 MHz 824~849 MHz LTE-FDD B1 1920 ~1980 MHz 2110 ~2170 MHz LTE-FDD B2 1930 ~1990 MHz 1850 ~1910 MHz LTE-FDD B3 1710 ~1785 MHz 1805 ~1880 MHz LTE-FDD B4 2110 ~2155 MHz 1710 ~1755 MHz LTE-FDD B7 2500 ~2570 MHz 2620~2690 MHz LTE-FDD B8 880 ~915 MHz 925~960 MHz LTE-FDD B17 734 ~746 MHz 704 ~716 MHz LTE-FDD B20 832 ~862 MHz 791~821 MHz GPS 1574.4 ～1576.44 MHz - GLONASS 1598 ～1606 MHz - BD 1559 ～1563 MHz SIM7500A_User Manual_V1.01 2016-07-06 34
Smart Machine Smart Decision Table 23: Conducted receive sensitivity Frequency Receive sensitivity(Typical) Receive sensitivity(MAX) E-GSM900 < -109dBm 3GPP DCS1800 < -109dBm 3GPP WCDMA B2 < -110dBm 3GPP WCDMA B5 < -110dBm 3GPP LTE See table 24 3GPP Table 24: Reference sensitivity (QPSK) E-UTRA band 3GPP standard Test value 3GPP standard Duplex 1.4 MHz 3MHz 5MHz 10MHz 10 MHz 15 MHz 20 MHz 1 - - -100 -97 -101.3 -95.2 -94 FDD 2 -102.7 -99.7 -98 -95 -101 -93.2 -92 FDD 3 -101.7 -98.7 -97 -94 -100 -92.2 -91 FDD 4 -104.7 -101.7 -100 -97 -102 -95.2 -94 FDD 7 -98 -95 TBD -93.2 -92 FDD 8 -102.2 -99.2 -97 -94 -99.8 FDD 17 - - -97 -94 -102.4 FDD 20 -97 -94 TBD -91.2 -90 FDD 4.2 WCDMA/LTE Antenna Design Guide Users should connect antennas to Module’s antenna pads through the micro-strip line or other types of RF trace. The trace impedance must be controlled in 50Ω. SIMCom recommends that the total insertion loss between Module and antenna should meet the following requirements: Table 25: Trace Loss Frequency Loss 700MHz-960MHz <0.5dB 1710MHz-2170MHz <0.9dB 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. SIM7500A_User Manual_V1.01 2016-07-06 35
Smart Machine Smart Decision RF connectorR2C1MODULE45MAIN_ANTGND C244 R1Matching circuitMAIN ANTRF connectorR2C1MODULE45MAIN_ANTGND C244 R1Matching circuitMAIN ANTD1 Figure 27: Antenna matching circuit (MAIN_ANT) In above figure, the components R1,C1,C2 and R2 are used for antenna matching, the value of components can only be achieved after the antenna tuning and usually provided by antenna vendor. By default, the R1, R2 are 0Ω resistors, and the C1, C2 are reserved for tuning. The component D1 is a TVS for ESD protection, and it is optional for users according to application environment. The RF test connector is used for the conducted RF performance test, and should be placed as close as to the module’s MAIN_ANT pin. The traces impedance between Module and antenna must be controlled in 50Ω. R4C3MODULE2DIV_ANTGND C41R3Matching circuitDiversity antennaD2 Figure 28: Antenna matching circuit (DIV_ANT) In above figure, R3, C3, C4 and R4 are used for auxiliary antenna matching. By default, the R3, R4 are 0Ωresistors, and the C3, C4 are reserved for tuning. D2 is a TVS for ESD protection, and it is optional for users according to application environment. Two TVS are recommended in the table below. SIM7500A_User Manual_V1.01 2016-07-06 36
Smart Machine Smart Decision Table 26: Recommended TVS Package Part Number Vender 0201 LXES03AAA1-154 Murata 0402 LXES15AAA1-153 Murata Note：SIMCom suggests the LTE auxiliary antenna to be kept on, since there are many high bands in the designing of FDD-LTE. Because of the high insert loss of the RF cable and layout lines, the receiver sensitivity of these bands above will have risk to meet the authentication without the diversity antenna. For more details about auxiliary antenna design notice, please refer to document [25] SIM7500A_User Manual_V1.01 2016-07-06 37
Smart Machine Smart Decision 5 Electrical Specifications 5.1 Absolute Maximum Ratings Absolute maximum rating for digital and analog pins of Module are listed in the following table: Table 27: Absolute maximum ratings Parameter Min. Max. Unit Voltage at VBAT -0.5 6.0 V Voltage at VBUS -0.5 6.3 V Voltage at digital pins (RESET,SPI,GPIO,I2C,UART,PCM) -0.3 2.1 V Voltage at digital pins :USIM -0.3 3.05 V Voltage at PWRKEY -0.3 1.8 5.2 Operating Conditions Table 28: Recommended operating ratings Parameter Min. Typ. Max. Unit Voltage at VBAT 3.4 3.8 4.2 V Voltage at VBUS 3.6 5 5.25 V Table 29: 1.8V Digital I/O characteristics* Parameter Description Min. Typ. Max. Unit VIH High-level input voltage 1.17 1.8 2.1 V VIL Low-level input voltage -0.3 0 0.63 V VOH High-level output voltage 1.35 - 1.8 V VOL Low-level output voltage 0 - 0.45 V IOH High-level output current(no pull down resistor) - 2 mA IOL Low-level output current(no pull up resistor) - -2 - mA IIH Input high leakage current (no pull down resistor) - - 1 uA IIL Input low leakage current(no pull up resistor) -1 - - uA *Note: These parameters are for digital interface pins, such as SPI, GPIOs (NETLIGHT), I2C, UART, PCM. The operating temperature of Module is listed in the following table. SIM7500A_User Manual_V1.01 2016-07-06 38
Smart Machine Smart Decision Table 30: Operating temperature Parameter Min. Typ. Max. Unit Normal operation temperature -30 25 80 ℃ Extended operation temperature* -40 25 85 ℃ Storage temperature -45 25 +90 ℃ *Note: Module is able to make and receive voice calls, data calls, SMS and make WCDMA/HSPA+/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 Module series products. Table 31: Operating mode Definitions Mode Function Normal operation GSM/WCDMA / LTE Sleep In this case, the current consumption of module will be reduced to the minimal level and the module can still receive paging message and SMS. GSM/WCDMA / LTE Idle Software is active. Module is registered to the network, and the module is ready to communicate. GSM/WCDMA / LTE Talk Connection between two subscribers is in progress. In this case, the power consumption depends on network settings such as DTX off/on, FR/EFR/HR, hopping sequences, antenna. GSM/WCDMA/LTE Standby Module is ready for data transmission, but no data is currently sent or received. In this case, power consumption depends on network settings. GPRS/EDGE/WCDMA / LTE transmission There is data transmission in progress. In this case, power consumption is related to network settings (e.g. power control level); uplink/downlink data rates, etc. Minimum functionality mode AT command “AT+CFUN=0” can be used to set the module to a minimum functionality mode without removing the power supply. In this mode, the RF part of the module will not work and the USIM card will not be accessible, but the serial port and USB port are still accessible. The power consumption in this mode is lower than normal mode. Flight mode AT command “AT+CFUN=4” or pulling down the FLIGHTMODE pin 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 SIM7500A_User Manual_V1.01 2016-07-06 39
Smart Machine Smart Decision consumption in this mode is lower than normal mode. Power off Module will go into power off mode by sending the AT command “AT+CPOF” or by pulling down the PWRKEY pin normally. In this mode the power management unit shuts down the power supply and software is not active. The serial port and USB are is not accessible. 5.3.2 Sleep Mode In sleep mode, the current consumption of module will be reduced to the minimal level, and module can still receive paging message and SMS. Several hardware and software conditions must be satisfied together in order to let Module enter into sleep mode: 1. UART condition 2. USB condition 3. Software condition Note: Before designing, pay attention to how to realize sleeping/waking function and refer to Document [26] for more details. 5.3.3 Minimum Functionality Mode and Flight Mode Minimum functionality mode ceases a majority function of module, thus minimizing the power consumption. This mode is set by the AT command which provides a choice of the functionality levels. ● AT+CFUN=0: Minimum functionality ● AT+CFUN=1: Full functionality (Default) ● AT+CFUN=4: Flight mode If Module has been set to minimum functionality mode, the RF function and USIM card function will be closed. In this case, the serial port and USB are still accessible, but RF function and USIM card will be unavailable. If Module has been set to flight mode, the RF function will be closed. In this case, the serial port and USB are still accessible, but RF function will be unavailable. When Module is in minimum functionality or flight mode, it can return to full functionality by the AT command “AT+CFUN=1”. 5.4 Current Consumption The current consumption is listed in the table below. Table 32: Current consumption on VBAT Pins (VBAT=3.8V) SIM7500A_User Manual_V1.01 2016-07-06 40
Smart Machine Smart Decision UMTS Sleep/Idle Mode WCDMA supply current (without USB connection) Sleep mode @DRX=9 Typical: 1.11 Idle mode @DRX=9 Typical: 17.5 LTE Sleep/Idle mode LTE supply current (without USB connection) Sleep mode Typical: 1.56 Idle mode Typical: 22 UMTS Talk WCDMA B2 @Power 22dBm Typical: 524mA WCDMA B5 @Power 23.48dBm Typical: 480mA HSDPA Data WCDMA B2 @Power 24dBm Typical: TBD WCDMA B5 @Power 24dBm Typical: TBD LTE Data LTE-FDD B2 @5 MHz 22.2dBm Typical: 589mA @10 MHz 22.7dBm Typical: 577mA @20 MHz 22.38dBm Typical: 626mA LTE-FDD B4 @5 MHz 23.05dBm Typical: 519mA @10 MHz 23.04dBm Typical: 556mA @20 MHz 22.83dBm Typical: 600mA LTE-FDD B17 @5 MHz 22.69dBm Typical: 516mA @10 MHz 22.9dBm Typical: 512mA 5.5 ESD Notes Module is sensitive to ESD in the process of storage, transporting and assembling. Especially, Module is mounted on the users’ mother board, The ESD components should be placed beside the connectors which human body might touch, such as USIM card holder, audio jacks, switches and keys, etc. The following table shows the Module ESD measurement performance without any external ESD component. Table 33: The ESD performance measurement table (Temperature: 25℃, Humidity: 45%) Part Contact discharge Air discharge GND +/-6K +/-12K VBAT +/-5K +/-10K Antenna port +/-5K +/-10K USB +/-4K +/-8K UART +/-4K +/-8K PCM +/-4K +/-8K Other PADs +/-3K +/-6K SIM7500A_User Manual_V1.01 2016-07-06 41
Smart Machine Smart Decision 6 SMT Production Guide 6.1 Top and Bottom View of Module Figure 29: Top and bottom view of Module 6.2 Label Information Figure 30: Label Information A D F H B G C E SIM7500A_User Manual_V1.01 2016-07-06 42
Smart Machine Smart Decision Table 34: The Description of Label Information No. Description A LOGO B No.1 Pin C Project Name D Part Number E Serial Number (SN) F International Mobile Equipment Identity (IMEI) G FCC ID H QR code 6.3 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 31: The ramp-soak-spike Reflow Profile of Module Note: For more details about secondary SMT, please refer to the document [21]. 6.4 Moisture Sensitivity Level (MSL) Module 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. SIM7500A_User Manual_V1.01 2016-07-06 43
Smart Machine Smart Decision Table 35: Moisture Sensitivity Level and Floor Life Moisture Sensitivity Level (MSL) Floor Life (out of bag) at factory ambient≤30°C/60% RH or as stated 1 Unlimited at ≦30℃/85% RH 2 1 year 2a 4 weeks 3 168 hours 4 72 hours 5 48 hours 5a 24 hours 6 Mandatory bake before use. After bake, it must be reflowed within the time limit specified on the label. NOTE: IPC / JEDEC J-STD-033 standard must be followed for production and storage. 6.5 Stencil Foil Design Recommendation The recommended thickness of stencil foil is more than 0.1mm. SIM7500A_User Manual_V1.01 2016-07-06 44
Smart Machine Smart Decision 7 Packaging Module module support tray packaging. Figure 32: Packaging introduce Module tray drawing： Figure 33: Module tray drawing introduce Table 36: Tray size Length（±3mm） Width（±3mm） Module number 242.0 161.0 15 Small carton drawing： SIM7500A_User Manual_V1.01 2016-07-06 45
Smart Machine Smart Decision Figure 34: Small carton drawing introduce Table 37: Small Carton size Length（±10mm） Width（±10mm） Height（±10mm） Module number 270 180 120 15*20=300 Big carton drawing： Figure 35: Big carton drawing introduce Table 38: Big carton size Length（±10mm） Width（±10mm） Height（±10mm） Module number 380 280 280 300*4=1200 SIM7500A_User Manual_V1.01 2016-07-06 46
Smart Machine Smart Decision Appendix A. Reference Design C103C102C101VBATVBATPower supply220uF 100uF 1uFC109100nFUSIM_VDDUSIM_RSTUSIM_CLKUSIM_DATA3433Power supply3532GNDGNDPOWERKEY30244.7K47KTurn on/off pulse6GNDGND0RC107C106NC NCMAIN_ANT4546GNDGND44GND47SIM_DATASIM_VDDSIM_RSTSIM_CLKESDA6V1W5USB_VBUS 97NETLIGHT10K10K 300RLED Network StatusUSB_DP 8USB_DNUSB_VBUSUSB_DNUSB_DP12254826495250511011131416 GNDGND152228 GNDGND43 GND29SIM7500xR102R103R104 R105R106R107TVSVBAT23L11_1V8VBATIf USB interface is used， Connect USB_VBUS to 3.6V-5.25VSIM_DETADCGPIO_1GPIO_37GPIO_49STATUSDBG_TXDC114 100NFC115 22PF C117 22PFC116 22PFR120 22RR121 22RR122 22RReset pulseTXDRXDCTSRTSRIDCDDTRUART_TXDUART_RXDUART_CTSUART_RTSUART_RIUART_DCDUART_DTR38394136423740RESETSCL I2C_SCL4SDA 5I2C_SDA18201921PCM_INPCM_OUTPCM_SYNCPCM_CLKAudio CODEC ChiporDSP17I2S_MCLK31 GND27ISINKDIV_ANT 2R1011GNDGNSS_ANT 5554GNDGND53GND 560RC104 C105Div AntennaNCNC3GNDC1044.7uFC10833pFNCL101GNSS AntennaNCL102 Figure 36: Reference design Note: The UART port suggest to be used by isolated circuit . SIM7500A_User Manual_V1.01 2016-07-06 47
Smart Machine Smart Decision B. Coding Schemes and Maximum Net Data Rates over Air Interface Table 39: Coding schemes and maximum net data rates over air interface Multislot definition(GPRS/EDGE) Slot class DL slot number UL slot number Active slot number 1 1 1 2 2 2 1 3 3 2 2 3 4 3 1 4 5 2 2 4 6 3 2 4 7 3 3 4 8 4 1 5 9 3 2 5 10 4 2 5 11 4 3 5 12 4 4 5 GPRS coding scheme Max data rata（4 slots） Modulation type CS 1 = 9.05 kb/s / time slot 36.2 kb/s GMSK CS 2 = 13.4 kb/s / time slot 53.6 kb/s GMSK CS 3 = 15.6 kb/s / time slot 62.4 kb/s GMSK CS 4 = 21.4 kb/s / time slot 85.6 kb/s GMSK EDGE coding scheme Max data rata（4 slots） Modulation type MCS 1 = 8.8 kb/s/ time slot 35.2 kb/s GMSK MCS 2 = 11.2 kb/s/ time slot 44.8 kb/s GMSK MCS 3 = 14.8 kb/s/ time slot 59.2 kb/s GMSK MCS 4 = 17.6 kb/s/ time slot 70.4 kb/s GMSK MCS 5 = 22.4 kb/s/ time slot 89.6 kb/s 8PSK MCS 6 = 29.6 kb/s/ time slot 118.4 kb/s 8PSK MCS 7 = 44.8 kb/s/ time slot 179.2 kb/s 8PSK MCS 8 = 54.4 kb/s/ time slot 217.6 kb/s 8PSK MCS 9 = 59.2 kb/s/ time slot 236.8 kb/s 8PSK HSDPA device category Max data rate（peak） Modulation type Category 1 1.2Mbps 16QAM,QPSK Category 2 1.2Mbps 16QAM,QPSK Category 3 1.8Mbps 16QAM,QPSK Category 4 1.8Mbps 16QAM,QPSK Category 5 3.6Mbps 16QAM,QPSK Category 6 3.6Mbps 16QAM,QPSK Category 7 7.2Mbps 16QAM,QPSK Category 8 7.2Mbps 16QAM,QPSK SIM7500A_User Manual_V1.01 2016-07-06 48
Smart Machine Smart Decision Category 9 10.2Mbps 16QAM,QPSK Category 10 14.4Mbps 16QAM,QPSK Category 11 0.9Mbps QPSK Category 12 1.8Mbps QPSK Category 13 17.6Mbps 64QAM Category 14 21.1Mbps 64QAM Category 15 23.4Mbps 16QAM Category 16 28Mbps 16QAM Category 17 23.4Mbps 64QAM Category 18 28Mbps 64QAM Category 19 35.5Mbps 64QAM Category 20 42Mbps 64QAM Category 21 23.4Mbps 16QAM Category 22 28Mbps 16QAM Category 23 35.5Mbps 64QAM Category 24 42.2Mbps 64QAM HSUPA device category Max data rate（peak） Modulation type Category 1 0.96Mbps QPSK Category 2 1.92Mbps QPSK Category 3 1.92Mbps QPSK Category 4 3.84Mbps QPSK Category 5 3.84Mbps QPSK Category 6 5.76Mbps QPSK LTE-FDD device category (Downlink) Max data rate（peak） Modulation type Category 1 10Mbps QPSK/16QAM/64QAM Category 2 50Mbps QPSK/16QAM/64QAM Category 3 100Mbps QPSK/16QAM/64QAM Category 4 150Mbps QPSK/16QAM/64QAM LTE-FDD device category (Uplink) Max data rate（peak） Modulation type Category 1 5Mbps QPSK/16QAM Category 2 25Mbps QPSK/16QAM Category 3 50Mbps QPSK/16QAM Category 4 50Mbps QPSK/16QAM SIM7500A_User Manual_V1.01 2016-07-06 49
Smart Machine Smart Decision C. Related Documents Table 40: Related documents SN Title Description [1] SIM7X00 Series_AT Command Manual_V1.xx SIM7X00 Series_AT Command Manual [2] ITU-T Draft new recommendationV.25ter Serial asynchronous automatic dialing and control [3] GSM 07.07 Digital cellular telecommunications (Phase 2+); AT command set for GSM Mobile Equipment (ME) [4] GSM 07.10 Support GSM 07.10 multiplexing protocol [5] GSM 07.05 Digital cellular telecommunications (Phase 2+); Use of Data Terminal Equipment – Data Circuit terminating Equipment (DTE – DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS) [6] GSM 11.14 Digital cellular telecommunications system (Phase 2+); Specification of the SIM Application Toolkit for the Subscriber Identity Module – Mobile Equipment (SIM – ME) interface [7] GSM 11.11 Digital cellular telecommunications system (Phase 2+); Specification of the Subscriber Identity Module – Mobile Equipment (SIM – ME) interface [8] GSM 03.38 Digital cellular telecommunications system (Phase 2+); Alphabets and language-specific information [9] GSM 11.10 Digital cellular telecommunications system (Phase 2)； Mobile Station (MS) conformance specification； Part 1: Conformance specification [10] 3GPP TS 51.010-1 Digital cellular telecommunications system (Release 5); Mobile Station (MS) conformance specification [11] 3GPP TS 34.124 Electromagnetic Compatibility (EMC) for mobile terminals and ancillary equipment. [12] 3GPP TS 34.121 Electromagnetic Compatibility (EMC) for mobile terminals and ancillary equipment. [13] 3GPP TS 34.123-1 Technical Specification Group Radio Access Network; Terminal conformance specification; Radio transmission and reception (FDD) [14] 3GPP TS 34.123-3 User Equipment (UE) conformance specification; Part 3: Abstract Test Suites. [15] EN 301 908-02 V2.2.1 Electromagnetic compatibility and Radio spectrum Matters (ERM); Base Stations (BS) and User Equipment (UE) for IMT-2000. Third Generation cellular networks; Part 2: Harmonized EN for IMT-2000, CDMA Direct Spread (UTRA FDD) (UE) covering essential requirements of article 3.2 of the R&TTE Directive [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 51.010-1 Digital cellular telecommunications system (Release 5); Mobile Station (MS) conformance specification SIM7500A_User Manual_V1.01 2016-07-06 50
Smart Machine Smart Decision [19] GCF-CC V3.23.1 Global Certification Forum - Certification Criteria [20] 2002/95/EC Directive of the European Parliament and of the Council of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS) [21] Module secondary-SMT-UGD-V1.xx Module secondary SMT Guidelines [22] SIM7X00 Series_UART_Application Note_V1.xx SIM7X00 Series_UART_Application Note [23] SIM7X00 Series_USB AUDIO_Application Note_V1.xx SIM7X00 Series_USB AUDIO_Application Note [24] Antenna design guidelines for diversity receiver system Antenna design guidelines for diversity receiver system [25] SIM7X00 Series_Sleep Mode_ Application Note_V1.xx SIM7X00 Series_Sleep Mode_ Application Note SIM7500A_User Manual_V1.01 2016-07-06 51
Smart Machine Smart Decision D. Terms and Abbreviations Table 41: Terms and Abbreviations Abbreviation Description ADC Analog-to-Digital Converter ARP Antenna Reference Point BER Bit Error Rate BTS Base Transceiver Station CS Coding Scheme CSD Circuit Switched Data CTS Clear to Send DAC Digital-to-Analog Converter DRX Discontinuous Reception DSP Digital Signal Processor DTE Data Terminal Equipment (typically computer, terminal, printer) DTR Data Terminal Ready DTX Discontinuous Transmission EFR Enhanced Full Rate EGSM Enhanced GSM EMC Electromagnetic Compatibility ESD Electrostatic Discharge ETS European Telecommunication Standard EVDO Evolution Data Only FCC Federal Communications Commission (U.S.) FD SIM fix dialing phonebook FDMA Frequency Division Multiple Access FR Full Rate GMSK Gaussian Minimum Shift Keying GPRS General Packet Radio Service GSM Global Standard for Mobile Communications GNSS Global Navigation Satellite System HR Half Rate HSPA High Speed Packet Access I2C Inter-Integrated Circuit IMEI International Mobile Equipment Identity LTE Long Term Evolution MO Mobile Originated MS Mobile Station (GSM engine), also referred to as TE MT Mobile Terminated PAP Password Authentication Protocol PBCCH Packet Switched Broadcast Control Channel PCB Printed Circuit Board PCS Personal Communication System, also referred to as GSM 1900 RF Radio Frequency RMS Root Mean Square (value) RTC Real Time Clock SIM Subscriber Identification Module SIM7500A_User Manual_V1.01 2016-07-06 52
Smart Machine Smart Decision SMS Short Message Service SPI serial peripheral interface SMPS Switched-mode power supply TDMA Time Division Multiple Access TE Terminal Equipment, also referred to as DTE TX Transmit Direction UART Universal Asynchronous Receiver & Transmitter VSWR Voltage Standing Wave Ratio SM SIM phonebook NC Not connect EDGE Enhanced data rates for GSM evolution HSDPA High Speed Downlink Packet Access HSUPA High Speed Uplink Packet Access ZIF Zero intermediate frequency WCDMA Wideband Code Division Multiple Access VCTCXO Voltage control temperature-compensated crystal oscillator USIM Universal subscriber identity module UMTS Universal mobile telecommunications system UART Universal asynchronous receiver transmitter SIM7500A_User Manual_V1.01 2016-07-06 53
Smart Machine Smart Decision E. Safety Caution Table 42: 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. The operation of wireless appliances in an aircraft is forbidden to prevent interference with communication systems. Forgeting to think much of these instructions may impact the flight safety or offend local legal action, or both. Do not operate the cellular terminal or mobile in the presence of flammable gases or fumes. Switch off the cellular terminal when you are near petrol stations, fuel depots, chemical plants or where blasting operations are in progress. Operation of any electrical equipment in potentially explosive atmospheres can constitute a safety hazard. Your cellular terminal or mobile receives and transmits radio frequency energy while switched on. RF interference can occur if it is used close to TV sets, radios, computers or other electric equipment. Road safety comes first! Do not use a hand-held cellular terminal or mobile when driving a vehicle, unless it is securely mounted in a holder for hands free operation. Before making a call with a hand-held terminal or mobile, park the vehicle. GSM cellular terminals or mobiles operate over radio frequency signals and cellular networks and cannot be guaranteed to connect in all conditions, especially with a mobile fee or an invalid SIM card. While you are in this condition and need emergent help, please remember to use emergency calls. In order to make or receive calls, the cellular terminal or mobile must be switched on and in a service area with adequate cellular signal strength. Some networks do not allow for emergency call if certain network services or phone features are in use (e.g. lock functions, fixed dialing etc.). You may have to deactivate those features before you can make an emergency call. Also, some networks require that a valid SIM card be properly inserted in the cellular terminal or mobile. SIM7500A_User Manual_V1.01 2016-07-06 54
Smart Machine Smart Decision Contact us: Shanghai SIMCom Wireless Solutions Ltd. Add: SIM Technology Building, No.633, Jinzhong Road, Changning District, Shanghai P.R. China 200335 Tel：+86 21 3235 3300 Fax：+86 21 3235 3020 URL：www.simcomm2m.com SIM7500A_User Manual_V1.01 2016-07-06 55

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