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SIM5218E Hardware Design

3 Application interface

All hardware interfaces except RF interface that connects SIM5218E to the customers’ cellular
application platform is through a 70-pin 0.4mm

pitch board-to-board connector. Figure 1 is

SIM5218E system overview. Figure 2 is SIM5218E block diagram. Sub-interfaces included in this
board-to-board connector are described in detail in following chapters:

Power supply

USB interface

Serial interface

Analog audio interfaces

SIM interface

GPIO

ADC

LDO Power output

PCM interface

MMC/SD interface

Camera interface

RTC

I2C interface

Electrical and mechanical characteristics of the board-to-board connector are specified in

Chapter 6.

There we also order information for mating connectors.

SIM5218E_ Hardware Design_V1.06

2012.09.21

Summary of Contents for SimCom SIM5218E

Page 1: ...SIM5218E_Hardware Design_V1 06...

Page 2: ...e system validation of this product designed by SIMCom within a larger electronic system remains the responsibility of the customer or the customer s system integrator All specifications supplied here...

Page 3: ...chapter aaron 2009 6 5 Update the top and bottom pictures Update the temperature Spec Chen 2009 6 11 Update the description of Band VIII 2010 10 27 01 04 Add RESET timing and module is waked up by DT...

Page 4: ...ower saving 22 3 5 1 Minimum functionality mode 22 3 5 2 Flight mode 23 3 5 3 Sleep Mode 23 3 5 4 Wake up SIM5218E from Sleep Mode 24 3 6 RTC backup 24 3 7 Serial interface 26 3 8 Audio interfaces 29...

Page 5: ...5 4 1 1 Antenna connector 55 4 1 2 Antenna pad 56 4 2 Module RF output power 56 4 3 Module RF receive sensitivity 57 4 4 Module operating frequencies 57 5 Electrical reliability and radio characterist...

Page 6: ...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 S...

Page 7: ...0 1 Digital cellular telecommunications system Release 5 Mobile Station MS conformance specification 19 GCF CC V3 23 1 Global Certification Forum Certification Criteria 20 2002 95 EC Directive of the...

Page 8: ...Li Ion Lithium Ion 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 P...

Page 9: ...ue VOLmin Minimum Output Low Level Voltage Value FD SIM fix dialing phonebook SM SIM phonebook NC Not connect EDGE Enhanced data rates for GSM evolution HSDPA High Speed Downlink Packet Access HSUPA H...

Page 10: ...th a tiny configuration of 58 7mm 28 77mm 4 3 mm SIM5218E can fit almost all of the space requirements in user s applications such as Smart phone PDA phone and other mobile devices The physical interf...

Page 11: ...r GPS full functions it continuously tracks all satellites in view and provides accurate satellite position data This solution performs well even in very challenging environmental conditions where con...

Page 12: ...ss 12 z Downlink coding schemes MCS 1 9 z Uplink coding schemes MCS 1 9 z BEP reporting and test mode B z 8 bit 11 bit RACH z PBCCH support z phase 2 phase access procedures DATA UMTS HSDPA HSUPA z Su...

Page 13: ...ent Support phonebook types SM FD LD RC ON MC SIM Application Toolkit Support SAT class 3 GSM 11 14 Release 98 Support USAT Real time clock Implemented Timer function Programmable vian at command Phys...

Page 14: ...terfaces included in this board to board connector are described in detail in following chapters z Power supply z USB interface z Serial interface z Analog audio interfaces z SIM interface z GPIO z AD...

Page 15: ...a transmit burst which typically rises to 2A Mostly these six pins are voltage input Vmax 4 2V Vmin 3 4V Vnorm 3 8V VRTC Current input for RTC when the battery is not supplied for the system Current...

Page 16: ...voltage is 2 85V and driver current is rated for 150mA SIM5210 has not such pin Camera interfaces PIN NAME I O DESCRIPTION DC CHARACTERISTICS CAM_D0 I Bit 0 of RGB video component input CAM_D1 I Bit 1...

Page 17: ...pulled down with a 15kR resistor to ground in module if not in use left open So please do not pull up or pull down in user s application circuit UART_TXD O Transmit Data if not in use left open UART_R...

Page 18: ...upt If not in use left open It also can be multiplexed as the PCM_DIN pin GPIO1 O Status Indicating LED Control GPIO2 PCM_SYNC I General Input PIN If not in use left open It also can be multiplexed as...

Page 19: ...ntly sent or received In this case power consumption depends on network settings and EDGE configuration EDGE mode EDGE DATA There is data in transfer PPP or TCP or UDP in EDGE mode In this case power...

Page 20: ...the Capacitor must be a larger one for example 2200u 10V Multi layer ceramic chip MLCC capacitors can provide the best combination of low ESR and small size but may not be cost effective A lower cost...

Page 21: ...burst during which the current consumption may rise up to 2A If the power voltage drops below 3 4V the module may be switched off Using the board to board connector will be the best way to reduce the...

Page 22: ...8E by driving the POWER_ON to a low level voltage for period time The low level period of the POWER_ON is about 64mS This procedure will let the module to be logged off from the network and allow the...

Page 23: ...e are two methods to achieve SIM5218E module extreme low power AT CFUN is used to set module into minimum functionality mode and GPIO4 hardware interface signal can be used to set system to be Flight...

Page 24: ...tional ESD protection component is suggested to add on GPIO4 Figure 7 flight mode switch Table 7 logic of flight mode switch GPIO4 Status Module Action Low Level Flight Mode RF is closed High Level No...

Page 25: ...IM5218E has a debounce time of 10ms for mistaken interrupt checking Then DTR will trigger an interrupt which will finally cause SIM5218E to be waken up from sleep mode Note One can enable disable such...

Page 26: ...upply from non chargeable battery Figure 9 RTC supply from rechargeable battery Figure 10 RTC supply from capacitor z Li battery backup Rechargeable Lithium coin cells are also small in size but have...

Page 27: ...ime 3 7 Serial interface SIM5218E provides an unbalanced asynchronous serial port The module is designed as a DCE Data Communication Equipment following the traditional DCE DTE Data Terminal Equipment...

Page 28: ...e 8 Logic levels of serial ports pins Parameter Min Max Unit Logic low input 0 0 3 VDD_EXT V Logic high input 0 7 VDD_EXT VDD_EXT 0 3 V Logic low output GND 0 2 V Logic high output VDD_EXT 0 2 VDD_EXT...

Page 29: ...terface so we endue the alternate functions to these two pin Functions of serial port supporting on SIM5218E is as following z Standard Null Modem mode on Serial Port Interface z Contains Data lines T...

Page 30: ...ote Please reference document 21 for detailed information of Audio Application Note Table 9 Audio interface signal Audio channel SIM5218E_ Hardware Design_V1 06 2012 09 21 29 It is suggested that user...

Page 31: ...ecause SPK_P and SPK_N are outputs of Class D audio amplifier optional EMI filtering is shown at Figure 15 these components two ferrite beads and two capacitors can be added to reduce electromagnetic...

Page 32: ...gure 17 Microphone interface configuration NOTE NOTE SIM5218E has integrated internal MIC bais circuit There is no need to pull the MIC1_P and MIC_M up to the external power because they have been pul...

Page 33: ...e 1 2 1 60 2 2 V Working Current 70 400 uA External Microphone Load Resistance 1 2 2 2 k Ohms Table 11 Audio Output Characteristics Parameter Min Typ Max Unit load Resistance 27 32 Ohm Normal Output E...

Page 34: ...ection 3 8 5 2 Table 13 Audio parameters adjustable by AT command Parameter Influence to Range Gain range Calculation AT command micAmp1 MICP MICN analogue amplifier gain before ADC 0 1 0 24dB 2 steps...

Page 35: ...The audio programming model shows how the signal path can be influenced by varying AT command parameters Parameters micAmp txGain txVol txFilter rxGain stGain rxVol and rxFilter can be adjusted with...

Page 36: ...path Parameters txFilter tap0 6 0xff33 0x05d8 0xf488 0x0af3 0x24bb 0xca42 0x7c95 0 0 0 0 0 0 0 0xfff3 0x001d 0xffb9 0x016b 0xfa71 0x0c08 0x309a rxGain 11599 6523 41155 rxVol 100 100 0 stGain 2304 102...

Page 37: ...d influences digital volume of output signal after speech decoder Please check the reference document 1 for detailed information of each AT command 3 9 USIM card interface 3 9 1 USIM card application...

Page 38: ...t about 6 pins USIM card illustrates as in the following figure Figure 20 USIM interface reference circuit with 6 pins USIM card Note USIM_DATA has been pulled up with a 22kR resistor to V_USIM in mod...

Page 39: ...another is 1 8V 10 Current is about 10mA C2 USIM_RST SIM Card Reset C3 USIM_CLK SIM Card Clock C5 GND Connect to GND C6 VPP Connect to USIM_VDD C7 USIM_DATA SIM Card data I O 3 9 3 Embedded SIM card...

Page 40: ...to 2 6V in module So there is no need to pull them up in user s application circuit 3 11 High speed USB interface SIM5218E contains a high speed universal serial bus USB interface This interface is c...

Page 41: ...en use the Mini B it has no ID line Note Two limitations on ESD protection less than 4 pF and VBUS not to rail 3 12 Module Reset SIM5218E also have a RESET pin PIN29 input When should reset the module...

Page 42: ...shown below and status table is Table 23 Figure 23 status LED circuit Notes 300R Resistor s value depends on LED And status indicating table is as follow Name Direction Function 65 GPIO0 Input Input P...

Page 43: ...ec Please refer section 3 18 and document 1 for detail information 3 14 ADC interface SIM5218E has an analog to digital converter ADC that is available for digitizing analog signals such as battery vo...

Page 44: ...is 0 R2 is 47 k and R3 is 68 k for reference The VREF should be 2 65V The range of the return value is from 30 to 150 Figure 24 ADC interface used for temperature sampling reference circuit 3 15 LDO p...

Page 45: ...7725 data2 data9 to SIM5218E CAM_D2 CAM_D9 The camera module interface consists of the following 10 bit data bus for the pixel data information Horizontal and vertical synchronization signals 2 wire I...

Page 46: ...below LOW normal operation HIGH power down In Figure 26 the polarity of AK8856 power down is contrary to that of SIM5218E STANDBY so one must use a NPN triode to reverse the polarity of SIM5218E and...

Page 47: ...ested several kinds of digital sensors such as OV2640 OV7670 OV7725 and a NTSC PAL digital video decoder named AK8856 it can decode NTSC or PAL composite video signals into digital video data and with...

Page 48: ...C SD interface As mentioned the MMC SD interface supports SD according to the SD physical layer specification 2 0 up to 4 bit data mode It is also capable of supporting 1 bit MMC according to MCC spec...

Page 49: ...s and emergency mandates 3 18 1 GPS modes SIM5218E supports both A GPS and S GPS and provides three operating modes mobile assisted mode mobile based mode and standalone mode A GPS includes mobile ass...

Page 50: ...vides cold start GPS sensitivity that is an approximately 20 to 30 dB improvement over unassisted conventional GPS receivers Compared to network solutions that require equipment at each cell site the...

Page 51: ...n GPIOs default setting Use AT CPCM command to change pins function between PCM function and GPIOs If enbale PCM function AT CPCM command can be used to configure the PCM mode user want Also the slot...

Page 52: ...PCM interface Under PCM the data is output on the rising edge of PCM_CLK and sampled at the falling edge of PCM_CLK Primary PCM is disabled at power off or when RESET is asserted After the PCM interf...

Page 53: ...are discussed in this section followed by additional PCM topics 3 19 1 Auxiliary PCM The auxiliary PCM interface enables communication with an external codec to support hands free applications law co...

Page 54: ...M _SYNC offset time to AUX_PCM_CLK rising 1 95 s 4 t suauxdin AUX_PCM_DIN setup time to AUX_PCM_CLK falling 60 ns t hauxdin AUX_PCM_DIN hold time after AUX_PCM_CLK falling 60 ns t pauxdout Propagation...

Page 55: ...s t synca PCM_SYNC asserted time ns t syncd PCM_SYNC de asserted time s t clk PCM_CLK cycle time ns t clkh PCM_CLK high time ns t clkl PCM_CLK low time ns PCM_SYNC offset time to PCM_CLK falling 122 n...

Page 56: ...ormation of PCM Application Note 4 Antenna interface The RF interface has an impedance of 50 To suit the physical design of individual applications SIM5218E offers two alternatives z Recommended appro...

Page 57: ...FR4 Antenna pad Gold plated pad NOTE Please do keep enough space for every two antennas 4 2 Module RF output power Table 30 SIM5218E conducted RF output power Frequency Max Min GSM850 33dBm 2db 5dBm 5...

Page 58: ...MHz 880 915MHz DCS1800 1805 1880MHz 1710 1785MHz PCS1900 1930 1990MHz 1850 1910MHz WCDMA 2100 2110 2170MHz 1920 1980MHz WCDMA1900 1930 1990MHz 1850 1910MHz WCDMA 900 925 960MHz 880 915 MHz 5 Electrica...

Page 59: ...ge Temperatures outside the range 20 C 70 C might slightly deviate from ETSI specifications Storage temperature 40 85 Note we recommend adding heat sink on module shielding case while SIM5218E work on...

Page 60: ...0 Sleep DRX 2 3 0mA Sleep DRX 5 1 8mA Sleep DRX 9 1 4mA GSM900 Sleep DRX 2 3 0mA Sleep DRX 5 1 86mA Sleep DRX 9 1 4mA DCS1800 Sleep DRX 2 3 1mA Sleep DRX 5 1 7mA Sleep DRX 9 1 4mA PCS1900 Sleep DRX 2...

Page 61: ...A DATA mode EDGE 3Rx 2 Tx CLASS 12 GSM 850 power level 5 350mA Typical 320mA GSM 900 power level 5 350mA Typical 320mA DCS1800 power level 0 230mA Typical 200mA PCS1900 power level 0 230mA Typical 200...

Page 62: ...measurement table the results are got from our EVB board test Table 37 The ESD performance measurement table Temperature 25 Humidity 45 Part Contact discharge Air discharge VBAT GND 4KV 10KV UART USB...

Page 63: ...use Other conductor material can be used as well 4 Solder SIM5218E to ground through 4 out feet of bottom shield There are 4 out feet of SIM5218E bottom shield One can solder them to bare cooper on ho...

Page 64: ...tom shield to host board 6 Mechanics This chapter describes the mechanical dimensions of SIM5218E 6 1 Mechanical dimensions of SIM5218E Following are SIM5218E top view side view and bottom view These...

Page 65: ...IM5218E onto the application platform Use the connector AXK870145WG and four mounting pads to fix the SIM5218E onto the customer platform Figure 40 PIN sequence of SIM5218E When one mounts SIM5218E on...

Page 66: ...These high density SMT connectors are designed for parallel PCB to PCB applications They are ideal for using in VCRs notebook PCs cordless telephones mobile phones audio visual and other telecommunic...

Page 67: ...used in pin side host board side 6 4 RF connector and adapter cable The RF connector in module side is Murata Company RF Connectors MM9329 2700 it makes a pair with Murata Company RF cable MXTK88TK20...

Page 68: ...gn Figure 44 RF connector MM9329 2700 Figure 45 RF adapter cable MXTK88TK2000 For more information about the connector please visit http www murata com 6 5 View of the SIM5218E SIM5218E_ Hardware Desi...

Page 69: ...T 4 GND GND 67 GND GND 5 GND GND 66 GND GND 6 UART_TXD NC 65 GPIO0 PCM_DIN NC 7 UART_CTS NC 64 UART_RXD NC See Note 8 UART_DCD NC 63 UART_RTS NC 9 USB_VBUS NC 62 UART_DTR NC 10 GPIO1 NC 61 UART_RI NC...

Page 70: ...NC See Note 26 EAR_N NC 45 POWER_ON NC 27 HPR NC 44 MIC_N 0 1u cap to ground 28 HPL NC 43 MIC_P 0 1u cap to ground 29 RESET NC 42 HP_MICP NC 30 GPIO2 PCM_SYNC NC 41 HKADC NC 31 GPIO3 PCM_CLK NC 40 VR...

Page 71: ...rdware Design_V1 06 2012 09 21 70 Contact us Shanghai SIMCom Wireless Solutions Ltd Add SIM Technology Building No 633 Jinzhong Road Changning Disdrict Shanghai P R China 200335 Tel 86 21 3235 3300 Fa...

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