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Sierra Wireless WISMO218 Modem User Manual

1. The output voltage depends on the output speaker gain set by the AT command Please refer to document 2 WISMO218 AT Commands Manual If a single ended connection is used only SPKP has to be connected The result is a maximal output power divided by 2 Pin Description Table 19 Analog Audio Interface Pin Descriptions Pin E Signal Number UO UO Type Description MICP 3 l Analog Microphone positive input MICN 4 l Analog Microphone negative input SPKP 1 O Analog Speaker positive output SPKN 2 O Analog Speaker negative output WA_DEV_W218_PTS_002 Rev 005 Page 51 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Application Microphone The following subsections define different microphone configuration examples Microphone Differential Connection Example When a differential connection of MIC is used it is necessary to add a 2 2KQ resistor from MICN to GND in order to have proper bias of the microphone 2 4V typ Internal Mc bias WISMO 21 8 100nF Figure 15 Example of MIC Input Differential Connection with LC Filter Note Audio quality can be very good without L1 L2 C2 C3 and C4 depending on the design But if there is EMI perturbation this filter can reduce the TDMA noise This filter L1 L2 C2 C3 and C4 is not mandatory If not used the capacitor must be removed and the coil rep
2. 3 10 5 5 Separated the audio track figure and the differential connection figure Labeled the differential connection figure as Figure 21 Added Figure 22 single ended audio connection 5 4 Updated the Class B temperature range from 30 to 75 to 40 to 85 5 5 3 Updated the figure to display it rotated 90 degrees counterclockwise Updated text wording checked for spelling and grammar updated links and captions throughout the document 3 2 2 Updated the value of VBATT s Ripple max 3 10 1 1 Updated table values 3 10 2 1 1 Updated table values 3 10 4 1 1 Deleted the description for Z2 3 13 3 1 Changed de assert to release re recommendation for the ON OFF signal 3 14 Updated reference to section 3 13 3 1 4 1 4 Updated Caution text 3 10 1 Updated the DC equivalent circuit 3 10 1 1 Updated the table values and notes section 3 10 4 1 1 and 3 10 4 1 2 Updated figures from 2 85V to 2 4V 3 13 3 1 Updated figure and included the Treaay table just beneath the figure 3 17 3 Updated figure and updated descriptive text below the figure 3 13 3 1 Updated the figure to include ramp up time of VBAT Updated the Pin Description table Table 7 of the Main Serial Link UART August 12 2009 subsection of section 3 Interfaces Added List of Figures and List of Tables Updated Figure 31 Added Trampup Values in the Power on sequence table Added Figu
3. 0 1V 2 7V Vou CMOS 2 4V lou 4mA Absolute maximum ratings WA DEV W218 PTS 002 Rev 005 Page 34 of 109 a Product Technical Specification amp roduct Technical Specification SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE SPI Bus for Debug Trace ONLY The WISMO218 provides one SPI bus through the castellation pin Pin Description Table 6 SPI Bus Pin Descriptions Signal Daa UO UO Type Reset State Description SPI CLK 15 O 2V8 Pull down SPI Serial Clock SPI IO 13 UO 2V8 Pull down SPI Serial input output SPI O 14 O 2V8 Pull down SPI Serial input SPI CS 17 O 2V8 Pull up SPI Enable SPI IRQ 25 l 2V8 Pull down SPI Interrupt By default the WISMO218 SPI interface is only used for monitoring trace for debug purposes An SPI to UART2 conversion circuit is required to convert the SPI trace to UART 2 Also the SPI IRQ pin 25 is required for interrupt Again note that the SPI interface of the WISMO218 is not open for application use other than debug trace SPI Waveforms TSERCOC SPI CLK SPIHO Figure 4 SPI Timing Diagrams WA DEV W 218 PTS 002 Rev 005 Page 35 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE C161S750 TP101 CT106 CTS2 g 24 RTS 0P Q ers P CT105 RTS2 g
4. Connected Mode Current Waveform Current A U 1 A Ups 806 553m Current Waveform 669 182m 531 810m 394 439m 257 068m 119 697m 0 00s 2 00ms 3 99ms 99ms 7 99ms 9 98ms 11 98ms Transfer Mode Class 10 Current Waveform Current A 1 324 0 00307s 1 473 Current Waveform res pr v m 451 436m 4 Id 2 e L R B 4 Tr l ont Sess ce secessu et Wr 0 00s 2 00ms 3 99ms 99ms 7 99ms 9 98ms 11 98ms WA_DEV_W218_PTS_002 Rev 005 Page 31 of 109 SIERRA WIRELESS Product Technical Specification amp Customer Design Guidelines HEART OF THE WIRELESS MACHINE Idle Mode Page 2 Current Waveform 0 133A 0 458s Current Waveform 101 577m 1 L 55 858m g d gt H Be E E E ah eo g Q og 2 8 5 5 a E g 8 SS 12 471m 6 00s 5 00s 4 00s 3 00s 2 00s 1 00s 0 00s Idle Mode Page 9 Current Waveform Curent A 126 399m Current Waveform 33932m 4 10 816m MAN GR 80 166m 4 57 040m 4 12 301m 6 00s 5 00s 4 00s 3 00s 2 00s 1 00s 0 00s Page 32 of 109 Rev 005 WA_DEV_W218_PTS_002 a SIERRA WIRELESS HEART
5. HEART OF THE WIRELESS MACHINE Super Capacitor Super Capacitor WISM0218 BAT RTC fW B EX EECEOEL4748 p PANASONIC Figure 33 RTC Supplied by a Gold Capacitor Estimated range with 0 47 Farad Gold Cap 25 minutes minimum Note The Gold Capacitor maximum voltage is 3 9V Non Rechargeable Battery Non rechargeable battery cell WISMO218 BAT RTC EX CR2016 F VARTA GND gE FN Bl N Figure 34 RTC Supplied by a Non Rechargeable Battery The diode D1 is mandatory to prevent the non rechargeable battery from being damaged Estimated range with 85 mAh battery 800 hours minimum WA_DEV_W218_PTS_002 Rev 005 Page 74 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Rechargeable Battery Cell Rechargeable battery cell WISMO218 BAT RTC Figure 35 RTC Supplied by a Rechargeable Battery Cell Rechargeable battery cell Sanyo ML614 Estimated range with fully charged 3 4mAh rechargeable battery at least 7 days Caution Before battery cell assembly ensure that cell voltage is lower than 3 0V to avoid damaging the WISMO218 WA DEV W 218 PTS 002 Rev 005 Page 75 of 109 _ Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE TX_CTRL Signal for TX Burst Indication Features The TX_CTRL signal is a 2 8V indication sig
6. RESET T Power Key SW Normal Status of the EE leal B sw Module 185ms gm 135ms 6ms WISMO_READY fed WISMO is ready Tready Figure 31 Power ON Sequence no PIN code activated WA_DEV_W218_PTS_002 Rev 005 Page 68 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE EE EM NN NN Eme is y The ON OFF signal level is detected about 250ms after VBATT is available Note that this timing might be temperature dependant The voltage of this signal has to be pulled LOW for at least 685ms for powering ON Within this 685ms the WISMO READY signal will initially reset to HIGH for about 135ms and then resume to LOW During the power ON sequence an internal reset is automatically performed for 38ms typically During this phase any external reset should be avoided Once the WISMO218 is properly powered ON the WISMO READY pin will set to HIGH level to acknowledge the successful powering ON of the WISMO218 before it is ready to operate The ON OFF signal can be left at LOW level until power off Please note that temperature conditions may affect the timing for powering up The recommended way to release the ON OFF signal is to detect the WISMO READY signal within 685ms of powering ON while the level pulse of the ON OFF signal is set to LOW and wait until the WISMO READY signal goes HIGH again Power OFF The WISMO218 can be powered off by either s
7. 1800MHz Gam 18 TX power 0dBm The standalone power supply may be set from 3 2V to 4 8V The power supply VBATT used for measurement may be set from 3 2V to 4 8V according to the WISMO218 VBATT specifications WA_DEV_W218_PTS_002 Rev 005 Page 88 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Template This template may be used for consumption measurement for all modes and configurations available Three VBATT voltages are measured 3 2V 3 6V and 4 8V and the minimum maximum RF transmission power configurations are also set and measured Table 42 WISMO218 Power Consumption WISMO218 Power Consumption lmn Inom Imax Operating mode Parameters average average average k VBATT 4 8V VBATT 3 6V VBATT 3 2V Pea Imax Idle Mode Paging 2 Rx burst occurrence 0 5s EEE a EE mA 900 MHz PCL19 TX power 5dBm Connected Mode PCLO TX power 30dBm 1800MHz PCL15 TX power OdBm Gam 3 TX power 33dBm 900 MHz mA mA Transfer Mode l 8 ARX ATX Gam 3 TX power 30dBm 1800 MHz Gam 18 TX power 0dBm Gam 3 TX power 33dBm 900 MHz Gam 17 TX power 5dBm I 10 3Rx 2Tx Gam 3 TX power 30dBm 1800 MHz Gam 18 TX power OdBm Transfer Mode Gam 17 TX power 5dBm TT WA_DEV_W218_PTS_002 Rev 005 Page 89 of 109 7FE Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELE
8. SE 5E LE BE 6E OF T tl 9 sp v El l r tr Sh oF 000 y 31V2S WAIN Jus Figure 47 WISMO218 Dimensions Rev 005 WA DEV W218 PTS 002 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Recommended PCB Landing Pattern Refer to document 4 Customer Process Guideline for WISMO Series WA_DEV_W218_PTS_002 Rev 005 Page 100 of 109 i Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE 6 Peripheral Devices References General Purpose Connector The general purpose connector is a 46 pin castellation connector with a 1 5mm pitch For recommendations of PCB decal on the application board please refer to document 4 Customer Process Guideline for WISMO Series SIM Card Reader Listed below are the recommended SIM Card Readers to use with the WISMO218 e ITT CANNON CCMOS series see http www ittcannon com e AMPHENOL C707 series see http www amphenol com e JAE see http www jae co jp e top index html Drawer type e MOLEX 99228 0002 connector MOLEX 91236 0002 holder see http www molex com Note As the WISMO218 has no SIM detect feature the CC4 and CC8 pin should be left open Microphone Microphones can be obtained from the following recommended suppliers e HOSIDEN e PANASONIC e PEIKER Speaker Speakers can be obtained from the following recom
9. a _ a SIERRA WIRELESS HEART OF THE WIRELESS MACHINE Product Technical Specification amp Customer Design Guidelines Abbreviation IF IMEI IO LCD LED LNA LSB MAX MIC MIN MMS MO MS MT NF NMEA NOM NTC PA Pa PBCCH PC PCB PCL PCM PDA PFM PLL PSM PWM RF RFI RHCP RI RMS RST RTC RTCM Definition Intermediate Frequency International Mobile Equipment Identification Input Output Liquid Crystal Display Light Emitting Diode Low Noise Amplifier Less Significant Bit MAXimum MICrophone MINimum Multimedia Message Service Mobile Originated Mobile Station Mobile Terminated Not Applicable Noise Factor National Marine Electronics Association NOMinal Negative Temperature Coefficient Power Amplifier Pascal for speaker sound pressure measurements Packet Broadcast Control CHannel Personal Computer Printed Circuit Board Power Control Level Pulse Code Modulation Personal Digital Assistant Power Frequency Modulation Phase Lock Loop Phase Shift Modulation Pulse Width Modulation Random Access Memory Radio Frequency Radio Frequency Interference Right Hand Circular Polarization Ring Indicator Root Mean Square ReSeT Real Time Clock Radio Technical Commission for Maritime services WA_DEV_W218_PTS_002 Rev 005 Page 18 of 109 ss Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS M
10. A description of the operating modes and the procedure used to change the operating mode are given in the appendix of document 2 WISMO218 AT Commands Manual An overview of the WISMO218 operating modes is given below e OFF Mode e Alarm Mode e Idle Mode e Connected Mode e Transfer Mode class 8 4Rx 1Tx in GPRS mode e Transfer Mode class 10 3Rx 2Tx in GPRS mode WA DEV W 218 PTS 002 Rev 005 Page 87 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Equipment Configuration The communication tester is set according to the WISMO218 operating mode Paging during idle modes TX burst power RF band and GSM DCS GPRS may be selected on the communication tester Listed in the table below is the network analyzer configuration according to operating mode Table 41 Operating Mode Information Operating Mode Communication Tester Configuration OFF Mode N A Alarm Mode N A Paging 9 Rx burst occurrence 2s Idle Mode Paging 2 Rx burst occurrence 0 5s PCL5 TX power 33dBm 900 MHz PCL19 TX power 5dBm Connected Mode PCLO TX power 30dBm 1800MHz PCL15 TX power OdBm Gam 3 TX power 33dBm 900 MHz Transfer Mode class 8 Gam 17 TX power 5dBm 4Rx 1Tx Gam 3 TX power 30dBm 1800MHz Gam 18 TX power 0dBm GPRS Gam 3 TX power 33dBm 900 MHz Transfer Mode class 10 Gam 17 TX power 5dBm 3Rx 2Tx Gam 3 TX power 30dBm
11. BSS interface Data Link DL layer specification Release 1999 Digital cellular telecommunications system Phase 2 Technical Specification Group Core Networks Mobile radio interface layer 3 Supplementary services specification General aspects Release 1998 WA DEV W 218 PTS 002 Rev 005 Page 104 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Specification Reference Title Technical Specification Group Core Network Digital cellular telecommunications system Phase 2 Point to Point PP Short Message Service SMS support on mobile radio interface Release 1998 Technical Specification Group GSM EDGE Radio Access Network Radio transmission and reception Release 5 Technical Specification Group GSM EDGE Radio Access Network Radio subsystem link control Release 5 Technical Specification Group GSM EDGE Radio Access Network Radio subsystem synchronization Release 5 3GPP TS 04 11 V7 1 0 2000 09 3GPP TS 45 005 v5 5 0 2002 08 3GPP TS 45 008 V5 8 0 2002 08 3GPP TS 45 010 V5 1 0 2002 08 Technical Specification Group Services and System Aspects eer LAL vee KL Alak a Full rate speech Transcoding Release 5 Technical Specification Group Services and System Aspects 3GPP TS 46 011 V5 0 0 2002 06 Full rate speech Substitution and muting of lost frames for full rate speech channels Release 5 Technical
12. amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Figure 33 RTC Supplied by a Gold Capacitor Ml nennen 14 Figure 34 RTC Supplied by a Non Rechargeable Battenm Au 14 Figure 35 RTC Supplied by a Rechargeable Battery Cell 15 Figure 386 TX CTRL State During TX Bursl REENEN 16 Figure 37 Example of TX Status lmplementatiOn llllllllll kk kk 77 Figure 38 Reset TIMING EE 78 Figure 39 Example of RESET Pin Connection with Push Button Configuration 19 Figure 40 Example of RESET Pin Connection with Transistor Configuration 19 Figure 41 Example of an RF 500 Ime kk kk kak kk nnn nnne nnns 81 Figure 42 Typical hardware configuration nennen nennen nennen nennen 84 Figure 43 WISMO 18 Pin Conftouratlon nnne 90 Figure 44 PCB Structure Example for the Application Board 94 Fig re 45 Environmental Classes sette tttm eerte rre ee rere ee kewe kake Pee d kaka e 96 Figure 46 Castellation Pin Dimension and Location kh lllllllllll keke 98 Figure 47 WISMO 218 Dimensions nennen nennen nnne nnne nnne nnne nnne nnne nnne nne nnn 99 WA DEV W218 PTS 002 Rev 005 Page 13 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE List of Tables Table 1 Input Power Supply Vollage nnne nnn nnn 26 Table 2 Power Supply Pin Descriptions essen nnnm nnn
13. 93 PCB Specification for Application Board esses eene eee nnne nnns 94 Environmental SpecifiCatiOrni 12 rec ira ceres coco can cunc oan s usc can roa c oaa acus e Rap Eas ERa DER iSER a nER AAR ERA ASARES 95 Function Status Classification sess eene nennen nennen nennen KAKA KARA 95 CL SA E 95 CESS IB E bee A ke bi ne bet be C wan tU 95 Mechanical Specifications 11 cree kk RERA crier cioe scu ARAKERARE QARA ERATA ARANEA AARAA WERA RSEN RSEN ABER REA 97 Physical Characteristis s deer eren a rx ke a kwa a a L KN e ea k w a ak w k uh aka wa Re EK 97 WISMO218 DIMENSIONS eege iyis taata reru oe kek tuere naa te kay ua ke kaka tee ede e bu ke ev kra ea e ba Para e n 98 Recommended PCB Landing Pattern c cccccccscccsscccsssscsssccsseeccsresceesscseessseessereseseeseseessseesegs 100 6 PERIPHERAL DEVICES REFERENCES ssssssssssssssssssssssssssesssssesssssesssseessases 101 General Purpose Connectot 1er erre neruos nus cuan suae uar un a Eun Cms RENANE ANNEANNE RSEN amis 101 SIM Card Reade 101 MII OPN ONG ies set k na di di exer k x aye kek ek eyan da elek da n KK Kaya k keka xaka a axek C 101 Speaker tiri coi cria tea tran n LEES LEY kak ka ERES karik ERAS ERES ELS ck kK ERES kor k K EREEREER 101 PAPO Ma
14. DY a N x trek rrr dr 64 Applica D m sual sek sana nara dara k ara guhayaya ces cava coud xaye K RA saya xena paye a kaye d ne ay K k kane Ken dae K ba kena kena K nak 65 Calculations of the Low Filter nnne nennen eene nnns 66 WA DEV W218 PTS 002 Rev 005 Page 8 of 109 _ Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Recommended characteristics for the buzzer nee 66 ON OFF Signal REM 67 RN Sc ena e e _ hrpr rmmm 67 alba yyy 67 ADDIICATION 68 PO WOT el fei 68 Geer 69 WISMO READY TE E 71 Feat tes tenian np oi ea E e envi Dev ee e Ee La Ra reda o Fed eure Dee ege talents 11 Pin Description E xele k nan 11 VCC _2V8 OUT nenene 72 FQ AU LES essa esis iid e re dee erar n HE ek RC EE PU e e ERR EXER ET EAR a Xe RETE ELE Nga ESdeEE REL YE SEEN ERES ERR ARRA 12 Pin Description tei eae ie gg g y ag 12 Welal Sc Te E 72 BAT RTC Backup Battery i irondas anan xisli xi kaka kana RAL EKA RD AE HEWAE R KE R KA EE KAE KEWA Run a Hun ARA u KER LER KATE KAR 73 R SNN DD M gm 73 Pin DESCHIPTION u cis iya n eyar n roy n
15. OF THE WIRELESS MACHINE Functional Description The global architecture of the WISMO218 is shown below Analog Interfaces Radio GSM GPRS AUDIO Digital Interfaces UART Control amp Power SPI C GPIOs power supplys SIM BUZZER reset PWMs RTC Address Control Figure 1 Functional Architecture RF Functionalities The Radio Frequency RF range complies with the Phase II EGSM 900 DCS 1800 recommendation The frequency range for the transmit band and receive band are listed in the table below NEN Transmit Band Tx Receive Band Rx E GSM 900 880 to 915 MHz 925 to 960 MHz DCS 1800 1710 to 1785 MHz 1805 to 1880 MHz The RF part of the WISMO218 is based on a specific dual band chip which includes e a Digital low IF receiver WA_DEV_W218_PTS_002 Rev 005 Page 22 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE e a dual band LNAs Low Noise Amplifier e an Offset PLL Phase Locked Loop transmitter e a Frequency synthesizer e a Digitally controlled crystal oscillator DCXO e aTx Rx FEM Front End Module for dual band GSM GPRS Baseband Functionalities The Baseband is composed of an ARM9 a DSP and an analog element with audio signals UO signals and ADC The core power supply is 1 2V and the digital power su
16. OF THE WIRELESS MACHINE Recommendations for Less Consumption Product Technical Specification amp Customer Design Guidelines For better power consumption in particular for the quiescent current it is recommended to drive the GPIOs as shown in the table below GPIO2 is dedicated for WISMO READY and is not open as GPIO purpose for customer use GPIOA is dedicated for TX burst indication and is not open as GPIO purpose for customer use Table 4 Consumption Software Driver Recommendations Signal Dae uo VO Type Reset State SW Driver Recommended Output GPIO1 24 I O 2V8 Pull up GPIO3 16 I O 2V8 Pull up pos je ola e When GPIO5 is used as a general purpose output it is necessary to have an external pull up resistor connecting to a 2 8V source Resistance value depends on the current drain required by the application side WA_DEV_W218_PTS_002 Rev 005 Page 33 of 109 a SIERRA WIRELESS HEART OF THE WIRELESS MACHINE Electrical Information for Digital LO Product Technical Specification amp The I Os concerned are all interfaces such as GPIOs SPIs etc Customer Design Guidelines Table 5 Electrical Characteristics of Digital I O 2 8 Volts Type 2V8 Parameter I O type Minim Typ Maxim Condition Internal 2 8V power supply VCC 2V8 2 7V 2 8V 2 95V Vit CMOS 0 4V 0 4V VCC_2V8 Vu CMOS 2 4V 0 4V Input Output pin VoL CMOS
17. Reference Sensitivity 109 dBm typ e DCS1800 Reference Sensitivity 109 dBm typ e Selectivity 200 KHz 49 dBc e Selectivity 400 kHz gt 41 dBc e Linear dynamic range 63 dB e Co channel rejection gt 9 dBc The main parameters for the Transmitter are e Maximum output power EGSM 33 dBm 2 dB at ambient temperature e Maximum output power GSM1800 30 dBm 2 dB at ambient temperature e Minimum output power EGSM 5 dBm 5 dB at ambient temperature e Minimum output power GSM1800 0 dBm 5 dB at ambient temperature Antenna Specifications The antenna must fulfill the requirements listed in the table below The optimum operating frequency depends on the application A dual Band antenna will work in these frequency bands and should have the following characteristics WA_DEV_W218_PTS_002 Rev 005 Page 80 of 109 Castellation pin for ANT A Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Table 39 Antenna Specifications WISMO218 Characteristic E GSM 900 DCS 1800 1710 to 1785 MHz 1805 to 1880 MHz 880 to 915 MHz 925 to 960 MHz TX Frequency RX Frequency Impedance 50Q Typical radiated gain OdBi in one direction at least Caution Sierra Wireless strongly recommends working with an antenna manufacturer either to develop an antenna adapted to the applicatio
18. Specification Group Services and System Aspects 3GPP TS 46 012 V5 0 0 2002 06 Full rate speech Comfort noise aspect for full rate speech traffic channels Release 5 Technical Specification Group Services and System Aspects 3GPP TS 46 031 V5 0 0 2002 06 Full rate speech Discontinuous Transmission DTX for full rate speech traffic channels Release 5 Technical Specification Group Services and System Aspects 3GPP TS 46 032 V5 0 0 2002 06 Full rate speech Voice Activity Detector VAD for full rate speech traffic channels Release 5 Digital cellular telecommunications system Phase 2 TS 100 913V8 0 0 1999 08 General on Terminal Adaptation Functions TAF for Mobile Stations MS GSM 07 01 version 8 0 0 Release 1999 Digital cellular telecommunications system Phase 2 General requirements on interworking between the Public Land Mobile GSM 09 07 V8 0 0 1999 08 Network PLMN and the Integrated Services Digital Network ISDN or Public Switched Telephone Network PSTN GSM 09 07 version 8 0 0 Release 1999 Technical Specification Group GSM EDGE Radio Access Network Digital cellular telecommunications system Phase 2 Mobile Station MS conformance specification Part 1 Conformance specification Release 5 3GPP TS 51 010 1 v5 0 0 2002 09 Technical Specification Group Terminals Specification of the Subscriber Identity Module Mobile Equipment SIM ME interface Release 5 Digital cellular tele
19. added as shown below VBATT WISMO218 GND GND Figure 28 Example of Buzzer Implementation Where e R1 must be chosen in order to limit the current at Irzeax max of 100mA and must be adjusted in function of the frequency and the duty cycle used e D1 BAV70T 7 or BAS16 for example e T1 FDN335N for example e R2 00 e R3 1MQ e A low filter is recommended at low frequencies WA_DEV_W218_PTS_002 Rev 005 Page 65 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Calculations of the Low Filter Req is the total resistor in line C is the capacitive charge on T1 and the ground The cut off frequency Fc must be higher than FBUZZ OUT Due to the conception of this signal the frequency modulation of the BUZZER signal is 64 FBUZZ OUT Fc must be at least 64 FRUZZ OUT Fc 1 2 IL Req C Recommended characteristics for the buzzer e Electro magnetic type e Impedance 7 to 30Q e Sensitivity 90 dB SPL min 10 cm e Current 60 to 90mA The BUZZER output can also be used to drive a LED as shown in the figure below BUZZER Figure 29 Example of LED Driven by the BUZZER Output The value of R607 can be harmonized depending on the LED D605 characteristics The recommended digital transistor to use for T601 is the DTC144EE from ROHM WA_DEV_W218_PTS_002 Rev 005 Page 66 of 109 Product Technical Specification amp SIERRA W
20. aea tace een a E e 49 sicci UD so scacsisxansateuadencse cade nsemndzncanendtidiandeicadeniailepacndaassaesdeiatavadetteaintstaead eisdentanteendenss 50 Speakers Outputs Power E 50 PiniDescriptiOnssxi ese tex teret obggggm goooO W0 51 ADDIICAtiON TTT 52 Olli elei e E TETTE OE DELL LLENOS 52 Recommended Components s sssssssssssssrssrrsrisnrnntinntnnttnntnnttAnNEnNEAANEANEANNEARNENNEASNENNEANEEARNENEEASEEENENEE EEEE 53 Recommended Components si lain daniao an zun m iaaa dikana Hal ke ri dad dan dan kn v a d Ea ek Ha K ER Bu d nek nc we a R BER 55 Speaker SPKP and SbPRN E 56 Design Recommendation llllllllll kk nennen nennen nennen nennen nennen nnns 56 ET EE 56 Recommended Microphone Characheristtcs enne enne nennen 51 Recommended Speaker Characteristics cccccccscccsssccsscccsseccscscsscscsescseescseescesescesssesssessseessseessgees 51 Recommended Filtering Components essen eene nnne nennen nennen nen nnns 51 Audio Track and PCB Layout Recommendation sssessseeeeneennennnnennn nennen nennen 59 Pulse Width Modulators PWPYMMIs 1eeeeenn nee nnnn nnn nmnu nnn nnnnn nua WARA A AWAR 62 lcm Ed 62 Pin Description E 62 elle e i xo E ee eee OE EEE OE oer 62 B ZZER O Tee 64 TL U T eased 64 lu B e al elel
21. button 1 RESET GND Figure 39 Example of RESET Pin Connection with Push Button Configuration RESET Reset command T1 Rohm DTC144EE GND Figure 40 Example of RESET Pin Connection with Transistor Configuration An open collector or open drain transistor can be used to drive the RESET pin If an open collector is chosen the recommended digital transistor to use for T1 is the DTC144EE from ROHM Table 38 Reset Commands Reset Command RESET Operating Mode DEE Note It is recommended to add a varistor AVL5M02200 on the RESET pin in order to enhance the ESD immunity WA_DEV_W218_PTS_002 Rev 005 Page 79 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE RF Interface The impedance is 50Q nominal and the DC resistance is 0Q RF Connection The RF input output of the WISMO218 is through one of the castellation pins Pin 21 A 50Q stripline can be used to connect to standard RF connectors such as SMA UFL etc for antenna connection Note The antenna cable and connector should be chosen in order to minimize loss in the frequency bands used for GSM900MHz and 1800MHz Note 0 5dB can be considered as a maximum value for loss between the WISMO218 and an external connector RF Performances RF performances are compliant with the ETSI recommendation GSM 05 05 The main parameters for the Receiver are e E GSM900
22. c1103 TXD2 2 CT103 TXD2 CT105 RTS2 CT105 RTS2 NC J200 4 DER boz rozasa GND Figure 6 Example of RS 232 Level Shifter Implementation for UART2 The following table lists the recommended components to use in implementing a UART transceiver circuitry Component Description Details Manufacturer U200 LTC2804IGN 1 LINEAR TECHNOLOGY L200 LQH2M CN100KO02L MURATA J200 096615276119 SUBD9F HARTING R202 NC R204 100KQ C200 1uF C201 220nF C207 1uF C208 1uF Note It is recommended to make SPI signals accessible for diagnostics by reserving some test points for example WA DEV W 218 PTS 002 Rev 005 Page 37 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Main Serial Link UART A flexible 8 wire serial interface is available on the WISMO218 that complies with the V24 protocol signaling but not with the V28 electrical interface due to its 2 8 Volt interface Features The supported baud rates of the UART are 1200 2400 4800 9600 19200 38400 57600 and 115200 Kbits with autobauding The signals used by the UART are as follows e TX data CT103 TXD e RX data CT104 RXD e Request To Send CT105 RTS e Clear To Send CT106 CTS e Data Terminal Ready CT108 DTR e Data Set Ready CT107 DSR e Data Carrier Detect CT109 DCD e Ring Indicator CT125 RI Pin Description
23. either have a single ended or a differential connection However it is strongly recommended to use a differential connection in order to reject common mode noise and TDMA noise Moreover in single ended mode half 2 of the power is lost When using a single ended connection be sure to have a very good ground plane very good filtering as well as shielding in order to avoid any disturbance on the audio path Table 17 Speaker Details REECH Z SPKP SPKN 16 or 32 Differential mode Speakers Outputs Power The maximal specifications given below are available with the maximum power output configuration values set by an AT command The typical values are recommended WA_DEV_W218_PTS_002 Rev 005 Page 50 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE SPK Outputs The SPK interface allows for both differential and single ended speaker connections WISMO21S SPKN SPKP Figure 14 Equivalent Circuit for SPK Table 18 Electrical Characteristics of SPK Parameters Min Typ Max Unit Biasing voltage SPKP and SPKN 1 4 V RL 8Q AT VGR 6 single ended 1 Vpp Output swing RL 8Q AT VGR 6 differential z E 2 Vpp voltage RL 16Q or 320 AT VGR 6 single ended 1 1 Vpp RL 16Q or 32Q AT VGR 76 differential 2 2 Vpp RL Load resistance 6 8 Q IOUT Output current peak value RL 8Q 90 mA POUT RL 80 AT VGR 10 65 mW
24. ets VP RI GPIO 23 TP102 CT104 RXD2 g AC 0P cp aPros 22 TP103 CT103 TXD2 g 3F UP DTR GPIO5 21 TP104 3v DSR GPIO4 20 TP105 BATAR GPIO3 l 8 TP106 2104 rok EET j jj i GND GPIO2 17 TP107 SPLCS m n am GPIOL Ke J TPloe D spo g 81 1 aProo ls g 3v SPLIO 11 SO NC SPI CLK SCLK SCL VDD H 13 V88 8D 3v vas ba R105 GND 4 RESET C107 R106 14 IRQ M x ham CIK S co t2 SPLIRO m a os EBE B GND GND Figure 5 Example of an SPI to UART2 Interface Conversion Implementation The following table lists the recommended components to use in implementing the SPI to UART2 interface Component Description Details Manufacturer U103 SC1618750IPW NXP Semiconductors X101 3 6864MHz 86SMX surface mount crystal 971 3131 Farnell R104 R105 10KQ R106 1KQ C105 22pF C106 33pF C107 100nF After converting the SPI signal to a UART signal a UART transceiver circuitry is needed to communicate this UART signal to DTE WA DEV W 218 PTS 002 Rev 005 Page 36 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE 3v L200 10UH LQH2MCN100KO02L SW CAP S LTC2804IGN 1 aS SSOPL6_4 SX6 E0 635 oa i E dH SS a n ON OFF ii NC J200 6 CTl04 RXD2 piti g g er196 crso CT104 RXD2 NC J200 1 3 CT106 CTS2 NC J200 9 g
25. the antenna retracted However your GSM terminal operates more efficiently with the antenna fully extended Do not hold the antenna when the terminal is IN USE Holding the antenna affects call quality and may cause the modem to operate at a higher power level than needed Antenna Care and Replacement Do not use the GSM terminal with a damaged antenna If a damaged antenna comes into contact with the skin a minor burn may result Replace a damaged antenna immediately Consult your manual to WA DEV W 218 PTS 002 Rev 005 Page 107 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE see if you may change the antenna yourself If so use only a manufacturer approved antenna Otherwise have your antenna repaired by a qualified technician Use only the supplied or approved antenna Unauthorized antennas modifications or attachments could damage the terminal and may contravene local RF emission regulations or invalidate type approval General Safety Driving Check the laws and the regulations regarding the use of cellular devices in the area where you have to drive as you always have to comply with them When using your GSM terminal while driving please e give full attention to driving e pull off the road and park before making or answering a call if driving conditions so require Electronic Devices Most electronic equipment for example in hospital
26. the following figure WA DEV W 218 PTS 002 Rev 005 Page 60 of 109 _ _ Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE WISMO218 Figure 24 Single Ended Audio Connection Caution t is a must to avoid digital tracks crossing under and over the audio tracks Even when MICP is singled ended it is highly recommended to have the MIC ground and the LC filter ground to act as an audio analog ground during the PCB layout This audio ground together with the MICP signal should act as the differential line pair And this audio ground should only be connected to the WISMO218 module ground as close as possible to the castellation GND pin of WISMO218 It is the same case for SPKP and SPKN Also the audio interface is ESD sensitive It is a must to add ESD protection to the interface once it is externally accessible Recommended ESD protection ESDA6VIL from ST WA_DEV_W218_PTS_002 Rev 005 Page 61 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Pulse Width Modulators PWMs The WISMO218 contains two Pulse Width Modulators PWMs They can be used in conjunction with an external transistor for driving a vibrator or a backlight LED Features Each PWM uses two 7 bit unsigned binary numbers one for the output period and one for the pulse width or the duty cycle The relative tim
27. yeke y ke x da Kek wele yeke y ke Kay keke yeke A Key xek k ye k Kek w n n ani 38 5 wire serial interface hardware design 39 4 wire serial interface hardware design 39 2 wire serial interface hardware design 39 rel eb WE 40 V24 CMOS possible design cccscsccsscscsccsesccseeecceccseescseesceeseeesceeescesesceeeseaesseaesseeeseaeeseauessusesesssatess 41 SIM Interfaces 44 Dr rrbrrrr mmm gg r xopo o o g g Lmwyg 44 Pin Description teet bakla b ba ek sard ea ke eke kek en ln eke kulk ea ek k n be ba r dek e ke a le kul keka k 45 ewle e Dy reer Tree Eee RE eC eer eer ee ee EK EK v ES 46 SIM socket ConNecti Di cd cn cinar rak ni OA VA ee Eegen Ee Es E 46 General Purpose Input Output csccssssssseeseeseesseeseeseesseseeeseeseeseesseeseeseesensseeseesesonssneseeseneensenenes 47 Salle deen WE 47 Analog to Digital Converter i iccciccccciecscststccscsssdsasestscscesstedenscstscstecscdsacesteesiecsieasssestoasiecssecssaesteesie0ss 48 liuc 48 Pini Deseriptior iioii iti EI REY bg g g2gmwJ J 48 Analog Audio Interface oorr retener nantur nonna KRA K k k ERAN RAA seed vous sees KUR A sees KRA KERR 49 Microphone Features nennen kk nennen enne nennen nennen KA KARA KAK ARK enn 49 Electrical CharacteniStics iiiter extre NEIN ERE MO TAN DI K TEN R N Hen VE KE UR XE VR DE CR a cas Ee
28. 218 remains fully functional across the specified temperature range Some GSM parameters may occasionally deviate from the ETSI specified requirements and this deviation does not affect the ability of the WISMO218 to connect to the cellular network and be fully functional as it does within the Class A range The detailed climatic and mechanics standard environmental constraints applicable to the WISMO218 are listed in the table below WA_DEV_W218_PTS_002 Rev 005 Page 95 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE mon ENVIRONNEMENTAL CLASSES TYPE OF TEST STANDARDS STORAGE TRANSPORTATION OPERATING PORT USE Class 1 2 Class 2 3 Class 7 3 Cold IEC 68 2 1 25 C 72h 40 C 72h 20 C GSM900 16h Ab test 10 C GSM1800 1900 16h Dry heat IEC 68 2 2 70 C 72h 70 C 72h Bb test Change of temperature IEC 68 2 14 40 30 C 5 cycles 20 30 C GSM900 3 cycles Na Nb test t1 3h 10 30 C GSM1800 1900 3 cycles t1 3h Damp heat IEC 68 2 30 30 C 2 cycles 40 C 2 cycles 40 C 2 cycles cyclic Db test 90 100 RH 90 100 RH 90 100 RH variant 1 variant 1 variant 1 Damp heat IEC 68 2 56 Cb test Sinusoidal vibration IEC 68 2 6 5mm s Fc test j 2m s2 3 x 5 sweep cycles 5 20Hz 0 96 m2 s3 10 12Hz 0 96 m2 s3 Random vibration IEC 68 3 36 20 500Hz 3 dB oct 12 150Hz 3 dB oct wide band Fdb test 3 x 10 m
29. 26 Table 3 WISMO 18 Operating MOd eS cotes ve reve reve a k ver k ka rris 28 Table 4 Consumption Software Driver RecommendationS eene 33 Table 5 Electrical Characteristics of Digital UO 34 Table 6 SPI Bus Pin Descriptions ooi rera nE roa xa ra ka keke k n PUE Kek keka k na xa 35 Table 7 Main Serial Link Pin Descriptions J ii lk ui dakzkkak eks kak kanika kake ak kake kaka kalak k kaka nnne 38 Table 8 Recommended Components kk enne kk kk kk kak ARA KAK KA A enn 40 Table 9 Electrical Characteristics of SIM Interface 45 Table 10 SIM Interface Pin Description nnne nnne nnne nnns 45 Table 11 Recommended e elle TE EC 46 Table 12 Pin Description of the SIM Socket A 46 Table 13 GPIO Pin Descriptions creer eh neret prt eo nete mer porre ma ade te rea gne e vpn 41 Table 14 Electrical Characteristics of ADLER 48 Table 15 Analog to Digital Converter Pin Description enne nnns 48 Table 16 Electrical Characteristics of MIC i i itcr i senan l n k sa rti bec n rr b a kada u aue 49 Table 17 Speaker Details d ye e l ne eit rane ek ue XE EXE EXE EYE o kik ERE XX EE FEN NER E vek vee NER FE FE V e FERE 50 Table 18 Electrical Characteristics Of SP AANEREN 51 Table 19 Analog Audio Interface Pin Descrtpttons 51 Table 20 Murata Examples essen nnnn enne enne nne 59 Table 21 PWM Electrical Characteristics ENEE 62 Table 22 PWM Pin Desctiptions uui riti i E HH X ETE ER EH EH
30. ACHINE Abbreviation Definition RTS Request To Send RX Receive SCL Serial CLock SDA Serial DAta SIM Subscriber Identification Module SMD Surface Mounted Device Design SMS Short Message Service SPI Serial Peripheral Interface SPL Sound Pressure Level SPK SPeaKer SW SoftWare PSRAM Pseudo Static RAM TBC To Be Confirmed TDMA Time Division Multiple Access TP Test Point TU Typical Urban fading profile TUHigh Typical Urban High speed fading profile TVS Transient Voltage Suppressor TX Transmit TYP TYPical UART Universal Asynchronous Receiver Transmitter UBX p blox proprietary protocol NE DOIT PAS APPARAITRE USB Universal Serial Bus USSD Unstructured Supplementary Services Data VSWR Voltage Standing Wave Ratio WAP Wireless Application Protocol WA DEV W218 PTS 002 Rev 005 Page 19 of 109 i Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE 2 General Description General Information The WISMO218 Wireless Standard MOdem is a self contained EGSM GPRS 900 1800 dual band module that was specifically designed for M2M systems deployed in Europe and Asia Overall Dimensions e Length 25 0 mm e Width 25 0 mm e Thickness 2 8 mm excluding label thickness e Weight 3 8 g Environment and Mechanics e Green policy Restriction of Hazardous Substances in Electrical and Electronic Equipment RoHS compliant e Complete shielding The WISMO218 is comp
31. ADDO Via lO TS ERE 16 2 GENERAL DESCRIPTION rennen nnnm annua aane AA KAWAR AA 20 G n ral Informatio seks cess aac TN 20 Overall DiMeENSiONS say sl yalan nola eaea r ne zale ba res paso eo va eka we neke b w WI ako w Wel OT bO WE NA ba AW NA 20 Environment and Mechantcs eene enne nennen nnn nennen een nnn innen nn 20 GSM GPRS TE 20 auer 20 SIM WAC aca ses cates cess Sec sha Wasa vss Do s enbs esse cut Davy ashi bee enue Devdaceu sets env nrRmnmoDDDDDDamml 21 Conriectiom Interfaces inei eie ka dik k k xala y k K dee 21 Functional DescHptiOIuusossocogxk nda Gol Kx DU GUAE DOG EON CN EXKER OK A ER EN EQUAL 22 RF Furnctionalitie Si y n rayan an kak 22 Geen cct EN 23 E NIE 24 General Interta Ces T 24 jn s 25 Power Supply Description 25 Electrical CharacteristiC8 222i entire pe RES naa da P ERCRT EE EXER da MR RARE EA aa TRE ha ERR ERR RARE Gis 26 Pin Description cete eoe xel kaye beka ke kel baka eel de bu cu La BUR ka Kul Ra Ba c E n E 26 ll iret ertet nter rens ny exero ere a Pus revisa E Te BE ndo EXE EEE T 26 Recommended Comiponents 1er at tutore rine hoi rerba ira ra ch ak Raa Can ERKE Pas Ka K eaevace C DEKAK E e SEG Kek 21 Power Consumption eese sse ssim tnit tenter AWA KAK KAK AW AWA ARA KAK AWA AA IIo 28 Various Op
32. EART OF THE WIRELESS MACHINE The table below shows some examples with different Murata components Table 20 Murata Examples Package 0402 Filtered band GSM900 GSM 850 900 DCS PCS Value 100nH 56pF 15pF Types Inductor Capacitor Capacitor Position Serial Shunt Shunt Manufacturer Murata Murata Murata Rated 150mA 50V 50V Reference QG15HSR10J02 or crunssscinscouzor CRESCE Package 0603 Filtered band GSM900 GSM 850 900 DCS PCS Value 100nH 47pF 10pF Types Inductor Capacitor Capacitor Position Serial Shunt Shunt Manufacturer Murata Murata Murata Rated 300mA 50V 50V Reference pennen SET GRMISESCTHISO AO e Audio Track and PCB Layout Recommendation To avoid TDMA noise it is recommended to surround the audio tracks with ground as shown in the following figure WA_DEV_W218_PTS_002 Rev 005 Page 59 of 109 _ _ Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Differential Audio line Q 15mm ma Figure 22 Audio Track Design For differential connections it is necessary to add a 2 2KQ resistor from MICN to GND to have a proper bias of the microphone Refer to the following figure WISMO218 Differential Audio line is always in parallel Figure 23 Differential Audio Connection For single ended connections the negative pole of the microphone MICN should be connected to GND Refer to
33. ED D605 characteristics WA_DEV_W218_PTS_002 Rev 005 Page 77 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Reset The WISMO218 has an input RESET pin This is a hardware reset and should only be used for emergency reset Feature The RESET signal has a 100KQ internal pull up resistor to VCC 2V8 VBATT 250ms min ONI OFF Ta RESET Figure 38 Reset Timing Table 36 Electrical Characteristics of the Signals Parameter Minimum Typ Maximum Unit Input Impedance R 100K 3 Q Input Impedance C 10nF F RESET Cancellation time Ta 38 me at power up only Vu 1 57 V Vit 0 1 2 V Vin 1 96 2 8 V S Internal pull up resistance i Vu Hysterisis Voltage Sequence after an external reset event RESET To activate the emergency reset sequence the RESET signal has to be set to LOW level manually for example by a push button Pin Description Table 37 Reset Pin Descriptions RESET 100K Pull up WISMO218 Reset WA_DEV_W218_PTS_002 Rev 005 Page 78 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Application If the emergency reset is used it has to be driven by an open collector or an open drain output due to the internal pull up resistor embedded into the WISMO218 as shown in the figure below Push
34. IRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE ON OFF Signal The ON OFF pin is used to switch ON or switch OFF the WISMO218 ON OFF signal is internally connected to the permanent 3 0V supply regulator inside the WISMO218 via a pull up resistor Once there is VBATT supply to the WISMO218 this 3 0V supply regulator will be enabled and so the ON OFF signal is by default at HIGH level A LOW level signal has to be provided on the ON OFF pin to switch ON the WISMO218 Caution All external signals must be inactive when the WISMO218 is OFF to avoid any damage when starting and to allow the WISMO2168 to start and stop correctly Avoid using application MCU GPIO to directly control the ON OFF signal of the WISMO218 instead control this signal via an open collector switching transistor Features Table 25 Electrical Characteristics of the ON OFF Signal Pin Description Table 26 ON OFF Signal Pin Descriptions WA DEV W 218 PTS 002 Rev 005 Page 67 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Application Switch 1 2 rm ON OFF oc GND to WISMO ON OFF signal from application MCU GPIO T control 1 Rohm DTC144EE GND Figure 30 Example of the ON OFF Pin Connection Either By a Switch or Via an Open Collector Transistor Power ON VBAT A 250ms min Tr p rampup amp 85ms Z ON OFF YY
35. LEDs e Act as a voltage reference for ADC interface AUX ADCO WA DEV W 218 PTS 002 Rev 005 Page 72 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE BAT RTC Backup Battery The WISMO 218 provides an input output to connect a Real Time Clock power supply Features This pin is used as a back up power supply for the internal Real Time Clock The RTC is supported by the WISMO218 when VBATT is available but a back up power supply is needed to save date and hour when VBATT is switched off If the R IC is not used this pin can be left open If VBATT is available the back up battery can be charged by the internal 3 0V power supply regulator via a 2KO resistor implemented inside the WISMO218 Table 31 Electrical Characteristics of the Signal Parameter Minimum Typ Maximum Unit Input voltage 3 0 V Input current consumption 2 5 HA Output voltage 2 82 3 0 3 18 V Max charging current VBATT 3 6V 0 6 mA j Provided by an RTC back up battery when the WISMO218 is off and VBATT OV Pin Description Table 32 BAT RTC Pin Descriptions Application The Back up Power Supply can be provided by any of the following e A super capacitor e Anon rechargeable battery e A rechargeable battery cell WA_DEV_W218_PTS_002 Rev 005 Page 73 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines
36. LESS MACHINE WISMO_READY Indication This signal indicates the ready status of the WISMO218 after powering on Please note that there is an initial positive pulse of less than 200ms during power ON For details please refer to the power ON diagram in the Power ON sub section Once the WISMO218 is properly powered ON the WISMO READY pin will set to HIGH level to acknowledge the successful powering ON of the WISMO 18 before it is ready to operate On the other hand the level will go LOW before powering off Features Table 27 Electrical Characteristics of the Signal Pin Description Table 28 WISMO READY Indication Pin Descriptions WISMO READY 7 JO 2V8 WISMO21 ready indication WA DEV W 218 PTS 002 Rev 005 Page 71 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE VCC 2V8 output The VCC_2V8 output can only be used for pull up resistor s and as a reference supply This voltage supply is available when the WISMO218 is switched on Features Table 29 Electrical Characteristics of the Signals Parameter Minimum Typ Maximum Unit Output voltage VCC 2V8 Full power mode Output Current Sleep mode 3 mA Pin Description Table 30 VCC 2V6 Pin Descriptions Application This digital power supplies are mainly used to e Pull up signals such as I O e Supply the digital transistors driving
37. Product Technical Specification amp Customer Design Guidelines WISMO218 Wireless Standard MOdem WA_DEV_W218_PTS_002 005 December 17 2009 ss SIERRA WIRELESS HEART OF THE WIRELESS MACHINE Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Important Notice Due to the nature of wireless communications transmission and reception of data can never be guaranteed Data may be delayed corrupted i e have errors or be totally lost Although significant delays or losses of data are rare when wireless devices such as the Sierra Wireless modem are used in a normal manner with a well constructed network the Sierra Wireless modem should not be used in situations where failure to transmit or receive data could result in damage of any kind to the user or any other party including but not limited to personal injury death or loss of property Sierra Wireless accepts no responsibility for damages of any kind resulting from delays or errors in data transmitted or received using the Sierra Wireless modem or for failure of the Sierra Wireless modem to transmit or receive such data Safety and Hazards Do not operate the Sierra Wireless modem in areas where blasting is in progress where explosive atmospheres may be present near medical equipment near life support equipment or any equipment which may be susceptible to any form of radio interference In such areas t
38. SS MACHINE 5 Technical Specifications Castellation Connector Pin Configuration CT104 RXD CT105 RTS CTI03 TXD ON OFF VCC 2V8 PWMO PWM1 SPKP BUZZER SPKN NC MICP NC MICN GND AUX_ADCO VBAT BAT RTC VBAT WISMO_READY GND SIM VCC NC SIM CLK GND SIM IO SPI IRQ SIM RST GPIO1 ke CH OH e Q Sn EH ke CH lU T lI oO DE o zZ zz z amp 9 amp JL 5 lt SG ce Lee c5 v a DP wn die Figure 43 WISMO218 Pin Configuration WA DEV W 218 PTS 002 Rev 005 Page 90 of 109 Tt SIERRA WIRELESS HEART OF THE WIRELESS MACHINE Castellation Pin Pin Out Description Product Technical Specification amp Customer Design Guidelines 2 Signal Description UO Bu Signal Description UO 1 SPKP Speaker output positive Analog 24 GPIO1 2 8V GPIO uo 32 ohms Speaker output 2 8V SPI interrupt 2 SERN negative 32 ohms Analog 25 SPHRQ request input 3 MICP Microphone input Analog 26 GND Ground Ground positive 4 MICN Microphone input Analog 27 NC Not connected negative 5 AUX ADCO Analog to digital 28 GND Ground Ground converter 6 BAT RTC ee Wd 29 VBATT Power supply ackup 7 WISMO READY 2 8VWISMO Ready O 30 VBATT Power supply 8 SIM VCC SIM power supply O 31 GND Ground Ground 9 SIM CLK SIM clock O 32 NC Not connected 10 SIM IO SIM data UO 33 NC Not connected 11 SIM RST SIM reset o 34 BUZZER 2 8V Buz
39. T PSSLEEP command please refer to document 2 WISMO218 AT Commands Manual Note that the power consumption level will vary depending on the operating mode used WA DEV W 218 PTS 002 Rev 005 Page 28 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Power Consumption The power consumption level will vary depending on the operating mode and it is for this reason that the following consumption values are given for each mode and RF band The following consumption values were obtained by performing measurements on WISMO218 samples at a temperature of 25 C Note All of the following information given assumes a 502 RF output Note Power consumption performance is software related The results listed below are based on the software version LO2 00gg WISMO218 WISMO218 Power consumption IN Inom Imax Operating mode Parameters average average overage Idle Mode Paging 2 Rx burst occurrence 0 5s Paging 9 Rx burst occurrence 2s 900 WESSEN Connected Mode n 1800MHz pasom n f o f e feon carmen a am me wnn on 900 MHz a Am uro e m ow sox e 1800 MHz omom ae ae m eal on 900 MHz Mode ia 1800 MHz ceva wm wwe vw zox ma_ Current consumption in OFF mode is measured with BAT RTC being left open hai Idle Mode consumption depends on the SIM card used Some SIM cards respond faster than others in which case
40. T107 DSR from both the WISMO218 side and from the DTE side e For detailed configuration please refer to Figure 9 Example of V24 CMOS Serial Link Implementation for 4 wire UART 2 wire serial interface hardware design e This case is possible for a connected external chip but it is not recommended e The flow control mechanism has to be managed from the customer side e Signal CT103 TXD CT104 RXD e The signal CT108 DTR can be looped back to CT107 DSR from both the WISMO218 side and from the DTE side e The signals CT105 RTS CT106 CTS are not used please configure using the AT command AT IFC 0 0 see document 2 WISMO218 AT Commands Manual e The signal CT105 RTS can be looped back to CT106 CTS from both the WISMO218 side and from the DTE side e For detailed configuration please refer to Figure 8 Example of V24 CMOS Serial Link Implementation for 2 wire UART Note The loop back connection of CT108 DTR to CT107 DSR is not allowed when the case AT PSSLEEP 0 is used for which sleep mode entry is CT108 DTR level dependent Refer to Note 1 of the Power Consumption section In order to go to sleep mode properly under such configuration AT PSSLEEP 1 should be used instead For details please refer to document 2 WISMO218 AT Commands Manual According to PC DTE view WA DEV W 218 PTS 002 Rev 005 Page 39 of 109 a SIERRA WIRELESS HEART OF THE WIRELESS MACHINE Product Technical Specif
41. Table 7 Main Serial Link Pin Descriptions Signal Pin Number UO 20 ee Description CT103 TXD 38 l 2V8 1 Transmit serial data CT104 RXD 40 O 2V8 1 Receive serial data CT105 RTS 39 l 2V8 0 Request To Send CT106 CTS 41 O 2V8 0 Clear To Send CT107 DSR 42 O 2V8 1 Data Set Ready CT108 DTR 44 l 2V8 1 Data Terminal Ready CT109 DCD 43 O 2V8 1 Data Carrier Detect CT125 RI 45 O 2V8 1 Ring Indicator GND GND Ground According to PC DTE view The rising time and falling time of the reception signals mainly CT103 TXD have to be less than 300ns Tip The WISMO218 is designed to operate using all the serial interface signals In particular it is recommended to use CT105 RTS and CT106 CTS for hardware flow control in order to avoid data corruption during transmissions WA DEV W 218 PTS 002 Rev 005 Page 38 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE 5 wire serial interface hardware design e Signal CT103 TXD CT104 RXD CT105 RTS CT106 CTS e The signal CT108 DTR must be managed following the V24 protocol signaling if we want to use idle mode e For detailed configuration please refer to Figure 10 Example of V24 CMOS Serial Link Implementation for 5 wire UART 4 wire serial interface hardware design e Signal CT103 TXD CT104 RXD CT105 RTS CT106 CTS e The signal CT108 DTR can be looped back to C
42. bable CLK CLocK CMOS Complementary Metal Oxide Semiconductor WA DEV W 218 PTS 002 Rev 005 Page 16 of 109 a _ a SIERRA WIRELESS HEART OF THE WIRELESS MACHINE Product Technical Specification amp Customer Design Guidelines Abbreviation CODEC CPU CS CSD CTS DAC DAI dB DC DCD DCE DCS DR DSR DTE DTR EFR E GSM EMC EMI EMS ESD ETSI FIFO FTA GND GPI GPC GPIO GPO GPRS GPS GPSI GSM HR Hi Z IDE Definition COder DECoder Central Processing Unit Coding Scheme Circuit Switched Data Clear To Send Digital to Analog Converter Digital Audio Interface Decibel Direct Current Data Carrier Detect Data Communication Equipment Digital Cellular System Dynamic Range Data Set Ready Data Terminal Equipment Data Terminal Ready Enhanced Full Rate Extended GSM ElectroMagnetic Compatibility ElectroMagnetic Interference Enhanced Message Service ENable ElectroStatic Discharges European Telecommunications Standards Institute First In First Out Full Rate Full Type Approval GrouND General Purpose Input General Purpose Connector General Purpose Input Output General Purpose Output General Packet Radio Service Global Positioning System General Purpose Serial Interface Global System for Mobile communications Half Rate High impedance Z Integrated Circuit Integrated Development Environment WA DEV W218 PTS 002 Rev 005 Page 17 of 109
43. communications system Phase 2 3GPP TS 51 011 V5 0 0 2001 12 ETS 300 641 1998 03 Specification of the 3 Volt Subscriber Identity Module Mobile Equipment SIM ME interface GSM 11 12 version 4 3 1 GCF CC V3 7 1 2002 08 Global Certification Forum Certification criteria The WISMO218 can only be used for mobile and fixed applications The antenna s used for the transmitter must be installed at a minimum distance of 20cm from all persons and must not be co located or operated with any other antenna or transmitter Users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance WA_DEV_W218_PTS_002 Rev 005 Page 105 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Note that when installed in portable devices the RF exposure condition requires a separate mandatory equipment authorization for the final device WA_DEV_W218_PTS_002 Rev 005 Page 106 of 109 CHI Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Safety Recommendations for Information Only For the efficient and safe operation of your GSM application based on the WISMO218 please read the following information carefully RF Safety General Your GSM terminal is based on the GSM standard for cellular
44. ction between DSR and DTR PCB Specification for Application Board In order to save costs for simple applications a cheap PCB structure can be used for the application board of the WISMO218 A 4 layer through hole type PCB structure can be used f 1 Top Layer Components including WISMO218 gt 2 2 Inner Layer 2 Bus and Power Supply o al ATI Inner Layer 3 Audio clocks sensitive signals o 7 S JA Ka AA Bottom Layer Ground and Test Points Figure 44 PCB Structure Example for the Application Board Note Due to the limited layers of 4 layer PCBs sensitive signals like audio SIM and clocks cannot be protected by 2 adjacent ground layers As a result during PCB layout care must be taken for these sensitive signals by avoiding coupling to noisy baseband through adjacent layers WA_DEV_W218_PTS_002 Rev 005 Page 94 of 109 _ _ Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Environmental Specifications The WISMO218 is compliant with the following operating classes The table below lists the ideal temperature range of the environment Operating Class A 25 C to 75 C Operating Class B 40 C to 85 C Function Status Classification Class A The WISMO218 remains fully functional meeting GSM performance criteria in accordance with ETSI requirements across the specified temperature range Class B The WISMO
45. d Call ccc 101 GSM Antenna PNM rrhrrpp m m nhr l _ _ r_b rh _ _ mmnmnmnnnm 102 i NOISES AND DESIGN edita Fei n ka bala cnet Kava daka da karayan aka aka ba ba ban Wana Ba ka aa lal 103 EMC ReECOMMECNAAatIONS 21 cccessniciscsscsssesesncessnceessncnsencszcacsesszeasnocssencnessacssnscssansssascersnscssasesnsessanenezes 103 lo JE ul 103 E qoo 6p rc 104 Standards and Recommendations reir eieeeeieeeene en ann kaka kk kk nA AKA AKA AA KAWA KAWA KAWA AA 104 Safety Recommendations for Information Only ssscssssssssssssssseecssseessseesssenesseensnesssoess 107 MELLE edd e Seeerei edd Reeder 107 General 107 Exposure to RE Energy uer eir reete eere ERE ala eee ek ea eee 107 Efficient Terminal Operation 107 Antenna Care and Replacement sese een nnne nn 107 EIERE 108 Balla EE pec ter eee ee 108 Electronic Devices HH HHHH HENG 108 Vehicle Electronic Equipe LEE 108 Medical Electronic Equ DIT TET aka kk keka kak kk kk nnne enne 108 yA Vile MEAE 108 Il G seca yn En 109 WA_DEV_W218_PTS_002 Rev 005 Page 10 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Bl Sting A T AS sc ya 109 Potentially Explosive Aimospheres eene enne nnne nennen nennen nnn 109 WA DEV W218 PTS 002 R
46. d does not represent a commitment on the part of Sierra Wireless SIERRA WIRELESS AND ITS AFFILIATES SPECIFICALLY DISCLAIM LIABILITY FOR ANY AND ALL DIRECT INDIRECT SPECIAL GENERAL INCIDENTAL CONSEQUENTIAL PUNITIVE OR EXEMPLARY DAMAGES INCLUDING BUT NOT LIMITED TO LOSS OF PROFITS OR REVENUE OR ANTICIPATED PROFITS OR REVENUE ARISING OUT OF THE USE OR INABILITY TO USE ANY SIERRA WIRELESS PRODUCT EVEN IF SIERRA WIRELESS AND OR ITS AFFILIATES HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES OR THEY ARE FORESEEABLE OR FOR CLAIMS BY ANY THIRD PARTY Notwithstanding the foregoing in no event shall Sierra Wireless and or its affiliates aggregate liability arising under or in connection with the Sierra Wireless product regardless of the number of events occurrences or claims giving rise to liability be in excess of the price paid by the purchaser for the Sierra Wireless product Copyright 2009 Sierra Wireless All rights reserved Trademarks AirCard and Heart of the Wireless Machine are filed or registered trademarks of Sierra Wireless Watcher is a trademark of Sierra Wireless registered in the European Community Sierra Wireless the Sierra Wireless logo the red wave design and the red tipped antenna are trademarks of Sierra Wireless e A n wywaewe cor inSIM YOU MAKE IT WE MAKE IT WIRELESS WAVECOMS WISMO Wireless Microprocessor Wireless CPU Open AT are filed or registered trademarks o
47. dware Presentation Note The WISMO218 Development Kit can be replaced by Development Kit WMP100 once a suitable socket up board is available The WISMO218 is only powered by VBATT The WISMO218 Development Kit board is powered by the standalone power supply at VBAT It is for this reason that the link between VBATT and VBAT J605 must be opened by removing the solder at the top of the board in the SUPPLY area Note the following information regarding both power supplies e VBATT is powered by the current measuring power supply 66321B e VBAT is powered by the standalone power supply AX502 through TP602 Also take note of the following additional configuration settings e The R600 resistor and the D603 and D604 diodes around the BAT TEMP connector must be removed e The UART2 link is not used therefore J201 J202 J203 J204 must be opened by removing the solder e The FLASH LED must be not used so J602 must be opened by removing the solder e The USB link is not used therefore J301 J302 J303 J304 J305 must be opened by removing the solder e The audio is not used therefore J702 J703 J704 J705 J605 must be opened by removing the solder e There is no SIM detect feature on the WISMO21S therefore J403 must be opened by removing the soldered e Charging is not used therefore R602 must be removed e C600 and R607 must be removed to avoid unexpected current consumption e The switch BOOT arou
48. e cna c REKE RA KAK EKA Ku AARE K uk KA A KEK RA KURK RA RAMER 83 Beet uiii e rd RH E ERR RH xak k ya xeya y ke xende xd d na xew k ye x ne k ye yek k leke k ya xendek 83 WISMO218 Development IiL uxco cce ciet rive vec vette reve e Wana key ve ve ela rika kek ve v kata wi ver Sar ka wak 85 Socket Up Board Sed M llllll nnnm enn KAK ARA KAK nnn 86 SIM Cards Used iunii eec ER eee E ERR ER CREER CR REOR EXE laisse dis ERE RR endian ee 86 Software Configurations ionis ioni otiosi annia AR RA KER KRA ARA KUR RRA REMA KER KURR KRA KER AKAR A NERA KER 87 WISMO218 Conftouratlon kaka kk kak kk kk kak AKA KAK KAK KAK KAK AA A AA AA 87 WA_DEV_W218_PTS_002 Rev 005 Page 9 of 109 _ D Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Equipment Configuration eseseeseeeeeeeeenenenennnen nennen nnne kan kal ax nennen nennen nennen 88 Template RRARR 89 5 TECHNICAL SPECIFICATION i i ni nisana ens rk yana ka nana ba kaka nana kana na kan nada 90 Castellation Connector Pin Configuration eese eese senes eene nn nennen nnn nnn nnn 90 iege XY 91 Pin Out Description nennen nennen nennen nennen kk A RAA KA A KRN AA WAA AA 91 Recommended Connection When Not Used
49. e s below WA_DEV_W218_PTS_002 Rev 005 Page 40 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE V24 CMOS possible design ON OFF Customer application DTE WISMO218 CT103 TXD DCE CT104 RXD CT105 RTS CT106 CTS CT107 DSR CT108 DTR CT109 DCD CT125 RI Figure 8 Example of V24 CMOS Serial Link Implementation for 2 wire UART ON OFF Customer application DTE WISMO218 CT103 TXD DCE CT106 CTS CT107 DSR CT108 DTR CT109 DCD CT125 RI Figure 9 Example of V24 CMOS Serial Link Implementation for 4 wire UART WA DEV W 218 PTS 002 Rev 005 Page 41 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE ON OFF Customer application DTE DCE CT104 RXD CT105 RTS CT106 CTS CT107 DSR CT108 DTR CT109 DCD CT125 RI Figure 10 Example of V24 CMOS Serial Link Implementation for 5 wire UART The designs shown in Figure 8 Figure 9 and Figure 10 are basic designs Both the DCD and RI can be left open when not used However a more flexible design to access this serial link with all modem signals is shown below WISMO218 37 ONZORE DCE Customer application 2 8Volt DTE 2x 10K CT109 DCD CT125 RI CT103 TXD CT104 RXD CT105 RTS CT106 CTS CT107 DSR CT108 DTR GND F
50. eference Li S svsssssesccsectuezceavsrevcsnesteysvevevesssnaayer lt veceieestavsveveveectersvevevetevneaveverereuens 85 Table 41 Operating Mode Information 88 Table 42 WISMO218 Power Consumption nennen enne 89 WA DEV W218 PTS 002 Rev 005 Page 15 of 109 t Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE 1 References Reference Documents Several documents are referenced throughout this specification For more details please consult the listed reference documents The Sierra Wireless documents referenced herein are provided in the Sierra Wireless documentation package however the general reference documents which are not Sierra Wireless owned are not provided in the documentation package Sierra Wireless Reference Documentation 1 WISMO218 Hardware Presentation Reference WA_DEV_W218 PTS 001 2 WISMO218 AT Commands Manual Reference WA_DEV_W218 UGD_003 B WISMO218 Development Kit User Guide Reference WA_DEV_W218 UGD_004 4 Customer Process Guideline for WISMO Series Reference WA DEV WISMO PTS 001 List of Abbreviations Abbreviation Definition AC Alternative Current ADC Analog to Digital Converter A D Analog to Digital conversion AF Audio Frequency AGC Automatic Gain Control AT ATtention prefix for modem commands AUX AUXiliary CAN Controller Area Network CB Cell Broadcast CBS Cell Broadcast Service CE CEP Circular Error Pro
51. em Aspects Radio Service GPRS Service description Stage 2 Release 1998 Technical Specification Group GSM EDGE Radio Access Network Technical Specification Group Terminals Technical Specification Group Terminals Technical realization of Cell Digital cellular telecommunications system Phase 2 Technical Specification Group GSM EDGE Radio Access Network Technical Specification Group Core Network Mobile radio interface layer 3 specification Release 1998 Title Technical Specification Group GSM EDGE Radio Access Network Radio Digital cellular telecommunications system Phase 2 Mobile Stations MS features GSM 02 07 version 8 0 0 Release 1999 General Packet Radio Service GPRS Service description Stage 1 GSM 02 60 version 8 1 0 Release 1999 Digital cellular telecommunications system Phase 2 General Packet Technical Specification Group GERAN Digital cellular telecommunications system Phase 2 General Packet Radio Service GPRS Overall description of the GPRS radio interface Stage 2 Release 5 Functions related to Mobile Station MS in idle mode and group receive mode Release 1999 Technical realization of the Short Message Service SMS Release 1998 Broadcast Service CBS Release 1998 Transmission planning aspects of the speech service in the GSM Public Land Mobile Network PLMN system GSM 03 50 version 8 1 1 Release 1999 Mobile Station Base Station System MS
52. en l k keka w key k Vala nA ko A oi A Sa kek SA a aA DR kata dik kala kah a lA VERA 73 Application n nek n Pey aya ade Oita cadets ER ada Ex Ex dyads Kok cstv dads r dwa Ba We D Y d ree d Ay aay 73 S per ee Ee e 74 Non Rechargeable Batter 74 Rechargeable Battery Cell 15 TX CTRL Signal for TX Burst Indication eese eene trennen tnter tnis 16 BN n SS E te HH Erie pee sate EYE FERE EN HHHH YR REX EATUR CY TE HHH 16 Pin DescriptiOn a itx e rx x ex xx ek er titi etn tintin at TI ApDliCatiOn EAEE A E E TI PROS os oes cca RAE W An K ku ka Aa 1A V K ROK a REZE W KER MM 78 GE 78 Sequence after an external reset event RESET sse eene nennen nnn 78 Pin DesctiptiOri u uci eec gg gg YR Vx ME ENREKX REN HE XAR E TRE KY RR HE KA RR R TUER 22 2o 2 18 ADDIICATION PA AMAN r o wamgxgxxoggg og 79 RE Winter ace ERE 80 RE COmMOCUON cits DD c r r e e e e e H HHHH E EESE EE ASERS 80 RFE Performance isszecivescesestezerecttnssrovedevecuenetaresedadacavavesatreelaysvevibosaeeestoteveviteeatessdeisastbiovereneietagseetes 80 Antenna Specifications creisteis nitanna aaeain ananake kada nanain aia 80 4 CONSUMPTION MEASUREMENT PROCEDUR E cscsssescssseessseresseessseees 83 Hardware Configuration 1111 coiere cue cca c cna c ctc sa
53. ended low capacitance diode array to use is the DALC208SC6 from ST Microelectronics The SIM uses four 4 signals namely e SIM VCC SIM power supply e SIM RST reset e SIM CLK clock e SIM IO I O port The SIM interface controls a 3V 1V8 SIM This interface is fully compliant with the GSM 11 11 recommendations concerning SIM functions WA_DEV_W218_PTS_002 Rev 005 Page 44 of 109 Sa ss SIERRA WIRELESS HEART OF THE WIRELESS MACHINE Product Technical Specification amp Customer Design Guidelines Table 9 Electrical Characteristics of SIM Interface Parameter Conditions Minim Typ Maxim Unit SIM IO Viu liu 200A 0 7xVSIM V SIM IO Vit li 1mA B 0 4 V x Meis AKA Source current 200A 0 9xVSIM V Von SIM IO Vou Source current 200A 0 8xVSIM V SIM RST SIM IO SIM ek Guren CLK 200A 0 4 V VoL inanis SIM VCC 2 9V 2 75 2 9 3 0 V SIM VCC Output Voltage SIM VCC 1 8V 1 65 1 8 1 95 V full power mode 20 mA SIM VCC current Sleep mode with 32kHz system 3 mA clock enabled SIM CLK Rise Fall Time loaded with SUpF and ESD 25 50 ns protection diode SIM RST Rise Fall Time Loaded with S0pF and ESD 45 l ns protection diode Loaded with 30pF and ESD SIM IO Rise Fall Time protection diode 0 2 1 us SIM CLK Frequency Loaded with 30pF 3 25 MHz Pin Description Table 10 SIM Interface Pin Description Pin Reset he re Multiplexed Signal Number UO UO Type Sta
54. erating MOodeS iire citi ex tere sex ux Eu ve ka ee Pu DR XN EE XX FELINE YR YN EX EE YE PER k ake EX weka 28 Power CONSUMPTION ucceacs ioca ertet ttt set yy dinle evt koka n kala estt Van Aha LA AA kata nv ek Ana 29 Consumption Waveform Samples lll kk kk nnne nnne nnn enne 30 Connected Mode Current Wavetorm nennen nnne nnne nnns 31 Transfer Mode Class 10 Current Waveform hk l nennen nnne nnne nennen nnn 31 Idle Mode Page 2 Current Waveform esssseeeeeeeeennneennnennnnennn nennen nennen nennen nen nnns 32 Idle Mode Page 9 Current Waveform essen enne nnn nnn nennen nennen nen nnn 32 Recommendations for Less Consumption essen nnne nnns 33 Electrical Information for Digital 1 O eeeeeeeeee eene enne nennen nnne nnns 34 WA DEV W218 PTS 002 Rev 005 Page 7 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE SPI Bus for Debug Trace ONLY ccsscsssssscsscessesseesseessnessneseeeseneseeesenesenesenesseeseneseeesenesenesenesenenaes 35 Pin Description secte neuen erue et eene ee eet vex vea vere aeu eue xweke e ke ak ed Dd 35 Si len EE 35 Main Serial Link VART g i kiika sanika saraya kaka n ka a dka kad wanaya karan kr uan Ara D k d Kurd ku a ke d K s Xu r ud VERA ER 38 RE 38 Piri eseriptior ucc eei k n K y
55. ers in the eye with the antenna for example Children could damage the modem or make calls that increase your modem bills Blasting Areas To avoid interfering with blasting operations turn your unit OFF when in a blasting area or in areas posted turn off two way radio Construction crews often use remote control RF devices to set off explosives Potentially Explosive Atmospheres Turn your terminal OFF when in any area with a potentially explosive atmosphere It is rare but your application or its accessories could generate sparks Sparks in such areas could cause an explosion or fire resulting in bodily injuries or even death Areas with a potentially explosive atmosphere are often but not always clearly marked They include fuelling areas such as petrol stations below decks on boats fuel or chemical transfer or storage facilities and areas where the air contains chemicals or particles such as grain dust or metal powders Do not transport or store flammable gas liquid or explosives in the compartment of your vehicle which contains your terminal or accessories Before using your terminal in a vehicle powered by liquefied petroleum gas such as propane or butane ensure that the vehicle complies with the relevant fire and safety regulations of the country in which the vehicle is to be used WA_DEV_W218_PTS_002 Rev 005 Page 109 of 109 a us SIERRA WIRELESS HEART OF THE WIRELESS MACHINE
56. ev 005 Page 11 of 109 a a SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Product Technical Specification amp List of Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Transistor Figure 31 Figure 32 Functional Architecture uie terrre rnnt nnne tr tn nk be Bu kn 22 Power Supply During Burst Emlsslon nennen nnn 25 Reject Filter DIAagF al ecciesie e er kera nak nel n ke e sect Wen W VE WAA e A ke bA WA kela cak kak dik ake 26 SPI Timing Diagrams nennen nennen ak nnne nnne nnne nnne nnne nnne nnne nnne nnn 35 Example of an SPI to UART2 Interface Conversion Implementation 36 Example of RS 232 Level Shifter Implementation for UART2 esesssssesererenn 31 Example of RS 232 Level Shifter Implementation for UART eee 40 Example of V24 CMOS Serial Link Implementation for 2 wire UART 41 Example of V24 CMOS Serial Link Implementation for 4 wire UART 41 Example of V24 CMOS Serial Link Implementation for 5 wire UART 42 Example of Full Modem V24 CMOS Serial Link Implementation
57. f Sierra Wireless S A in France and or in other countries Windows is a registered trademark of Microsoft Corporation QUALCOMM is a registered trademark of QUALCOMM Incorporated Used under license Other trademarks are the property of the respective owners WA DEV W218 PTS 002 Rev 005 Page 3 of 109 a ss Product Technical Specification amp SIERRA WIRELESS HEART OF THE WIRELESS MACHINE Contact Information Phone 1 604 232 1488 Customer Design Guidelines Sales Desk Hours Sierra Wireless 13811 Wireless Way SEI Richmond BC Canada V6V 3A4 Fax 1 604 231 1109 Web www sierrawireless com 8 00 AM to 5 00 PM Pacific Time sales sierrawireless com Consult our website for up to date product descriptions documentation application notes firmware upgrades troubleshooting tips and press releases www sierrawireless com Document Update History revision number and the revision date and their corresponding values Guideline for WISMO Series 3 5 1 5 5 2 Updated the section description Rev Date List of Updates 001 April 22 2009 Creation 002 April 28 2009 Addition of Power Consumption table and software note in section 3 3 2 Document Cover Footer Updated the file name from WA_DEV_W218_PTS_002 002 to WA_DEV_W218_PTS_002 003 the Throughout the document adjusted figure size to better display components 8 1 1 1 Updated the 4 reference d
58. for full UART 42 Example of SIM Socket Implementatton 46 DC and AC Equivalent Circuits of MIC 49 Equivalent Circuit Tor SPI uci ice cites et a REY ep PEN y ke K na RIXA kay y ke ka Kabe Kene MEHE 51 Example of MIC Input Differential Connection with LC Filter 52 Example of MIC Input Differential Connection without LC Filter 53 Example of MIC Input Single Ended connection with LC Filte 54 Example of MIC Input Single Ended Connection without LC Filter 55 Example of Speaker Differential Conpechomn 56 Example of Speaker Single Ended Connechon 56 lte gene LEE 57 Audio NR Te dee LE 60 Differential Audio Connection erret nint neri ean nea weka ak 60 Single Ended Audio Connection lll nennen nennen nennen nnns 61 Relative Timing for the PWM Output 62 Example of a LED Driven by the PWMO or PWM Output eem 63 BUZZER Quit titre TP S 64 Example of Buzzer Implementation MM kk kk kak kk kk 65 Example of LED Driven by the BUZZER Output 66 Example of the ON OFF Pin Connection Either By a Switch or Via an Open Collector 68 Power ON Sequence no PIN code activatedt 68 Power OFF Seq erce eure aaeain E M MIMMIAIMIAOMM anan oM ommm 10 WA_DEV_W218_PTS_002 Rev 005 Page 12 of 109 Product Technical Specification
59. fore time is up Alarm Mode e with AT CPOF having been entered from a computer that is connected to the WISMO218 e with the ON OFF signal being left open remains at HIGH level When the WISMO218 has a location update with a live network but with no GSM GPRS Iae Mogg connection while the UART interface is in sleep mode Note 1 Connected Mode The WISMO218 has GSM voice codec connection with a live network Transfer Mode The WISMO218 has GPRS data transfer connection with a live network EZ There are two different methods to enter sleep mode through the AT command setting AT PSSLEEP as described below e AT PSSLEEP 0 The entry of sleep mode is controlled by the level of DTR signal and the firmware When DTR viewed from module side is of LOW voltage level the WISMO218 will never enter sleep mode When DTR viewed from module side is of HIGH voltage level the WISMO218 will enter sleep mode To wake the WISMO218 up it is necessary to toggle the DTR viewed from module side from HIGH to LOW voltage level This method should be applied if the application needs to forbid the entry of sleep mode e AT PSSLEEP 1 For this method the entry of sleep mode is controlled just by the firmware When the WISMO218 has had no activities for a certain period of time it will enter sleep mode automatically regardless of the DTR level Any ASCII character on the UART can wake the WISMO218 up For details of the A
60. he Sierra Wireless modem MUST BE POWERED OFF The Sierra Wireless modem can transmit signals that could interfere with this equipment Do not operate the Sierra Wireless modem in any aircraft whether the aircraft is on the ground or in flight In aircraft the Sierra Wireless modem MUST BE POWERED OFF When operating the Sierra Wireless modem can transmit signals that could interfere with various onboard systems Note Some airlines may permit the use of cellular phones while the aircraft is on the ground and the door is open Sierra Wireless modems may be used at this time The driver or operator of any vehicle should not operate the Sierra Wireless modem while in control of a vehicle Doing so will detract from the driver or operator s control and operation of that vehicle In some states and provinces operating such communications devices while in control of a vehicle is an offence WA DEV W218 PTS 002 Rev 005 Page 2 of 109 _ Wii Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Limitations of Liability This manual is provided as is Sierra Wireless makes no warranties of any kind either expressed or implied including any implied warranties of merchantability fitness for a particular purpose or noninfringement The recipient of the manual shall endorse all risks arising from its use The information in this manual is subject to change without notice an
61. ht These GPIOs offer the possibility to read the pin state whatever their direction may be Pin Description GPIO2 is dedicated for WISMO READY and is not open as GPIO purpose for customer use GPIOA is dedicated for TX burst indication and is not open as GPIO purpose for customer use Table 13 GPIO Pin Descriptions Signal Pin Number UO UO Type Reset State GPIO1 24 UO 2V8 Pull up GPIO3 16 UO 2V8 Pull up GPIO5 19 VO 2V8 Pull down When GPIO5 is used as a general purpose output it is necessary to have an external pull up resistor connecting to a 2 8V source Resistance value depends on the current drain required by the application side WA_DEV_W218_PTS_002 Rev 005 Page 47 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Analog to Digital Converter One Analog to Digital Converter input is provided by the WISMO218 It is a 10 bit resolution converter ranging from either 0 to 1V or 0 to 3V depending on the general purpose input mode Features The AUX ADCO input can be used for customer applications Table 14 Electrical Characteristics of ADC Parameter Min Typ Max Unit Resolution 10 bits Sampling frequency 200 kHz 1 general purpose input Input signal range 4 general purpose input in div by 3 mode Integral non linearity INL 2 5 2 5 bit Differential non linearity DNL 1 3 b
62. ication amp Customer Design Guidelines Application The level shifter must be a V28 electrical signal compliant with 2 8V vcc_2v8 Di n m f M e Lee 28 v j we M voc wd T wr T ei l gt Vcc 2V8 il Lecur Leg P1 1 o 2 j CH ww i WISMO218 So gt Loita Ji m e bag 46 um ee lusu a ee ppp u e MM MT EOP 490 CTI04RXD CA se s KR rusa zs 4a2 CT107 DSR_ 2 Le Tier RO De T T 41 CTI06 CTS ES ise P vie RE Orien 43 CT109 DCD d 2 aan L mquiepo 45 CT125 RI L can an Li Le 38 CT103 TXD it Soe an n pS evini ran 39 CTIO5RTS TR san azar ET al CT108 DTR A sone i um H EIL K 2 DTR Figure 7 Example of RS 232 Level Shifter Implementation for UART Note that the U1 chip also protects the WISMO218 against ESD Air Discharge at 15KV Table 8 Recommended Components Component Description Details Manufacturer R1 R2 15KQ C1 C2 C3 C4 C5 1uF C6 100nF C7 6 8uF TANTAL 10V CP32136 AVX U1 ADM3307EACP ANALOG DEVICES J1 SUB D9 female R1 and R2 are necessary only during Reset state to force the CT125 RI and CT109 DCD signals to HIGH level The ADM3307EACP can be powered by the VCC_2V8 pin 46 of the WISMO218 or by an external regulator at 2 8V If the UART interface is connected directly to a host processor it is not necessary to use level shifters The interface can be connected as shown in the figur
63. igure 11 Example of Full Modem V24 CMOS Serial Link Implementation for full UART There is an internal 10KO pull up resistor on RI and DCD to set it to HIGH level during the reset state The UART interface is a 2 8V type but is 3V tolerant WA_DEV_W218_PTS_002 Rev 005 Page 42 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Tip The WISMO218 UART is designed to operate using all the serial interface signals In particular it is recommended to use CT105 RTS and CT106 CTS for hardware flow control in order to avoid data corruption during transmission WA_DEV_W218_PTS_002 Rev 005 Page 43 of 109 _ CHI Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE SIM Interface The Subscriber Identification Module can be directly connected to the WISMO218 through this dedicated interface Features The SIM interface controls both 1 8V and 3V SIM cards It is recommended to add Transient Voltage Suppressor diodes TVS on the signal connected to the SIM socket in order to prevent any Electrostatic Discharge TVS diodes with low capacitance less than 10pF have to be connected on SIM CLK and SIM IO signals to avoid any disturbance from the rising and falling edge These types of diodes are mandatory for the Full Type Approval They will be placed as close as possible to the SIM socket The recomm
64. in 3 x 30 min Figure 45 Environmental classes WA DEV W 218 PTS 002 Rev 005 Page 96 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Mechanical Specifications Physical Characteristics The WISMO218 has a nearly complete self contained shield e Overall dimensions 25 0 x 25 0 x 2 8 mm excluding label thickness e Weight 3 8g WA_DEV_W218_PTS_002 Rev 005 Page 97 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE WISMO218 Dimensions COMPONENT SIDE SHIELDING COVER 3 90mm UU00 66 E LP um 3p d 31 R0 25mm Typ 46 VIEW FROM BOTTOM SIDE E gt ex Lu ei E co iu EES L uuo wung wwgg cr 150mm Figure 46 Castellation Pin Dimension and Location WA_DEV_W218_PTS_002 Rev 005 Page 98 of 109 y Y 3 1 9 L Dj E KSE 828 43341903084 ow JE TT 53 Lt T 3e qWouviineow eo 25 SNOdS1H e Lo s ev war sorzorro vol sors gSWOODOSACN 20 eoa s mar terre arpir ana m M SNR se sei os mar EISE REN Page 99 of 109 ae SIERRA WIRELESS Product Technical Specification amp Customer Design Guidelines HEART OF THE WIRELESS MACHINE y 700 8 0 108 NM S e SNOI SN3W10 310008 812 ev lal i71 ne al 000 31925 2015 301 000 2 3128 301 WOLLOS 20 22 I2 02 6l
65. ing for the PWM output is shown in the figure below PWM pulse width PWM pulse width e 4 e b PWM period bet PWM period pg Figure 25 Relative Timing for the PWM Output Table 21 PWM Electrical Characteristics Parameter Condition Minimum Typical Maximum Unit Von High impedance load 2 7 2 85 V Load with lou 4mA 24 V Vor 0 1 V IPEAK 4 mA Frequency 25 6 1083 3 kHz Duty cycle 0 100 96 Pin Description Table 22 PWM Pin Descriptions WWW 138 0 UN Ewen ww 38 6 ve Ewvoupu Application Both the PWMO0 and PWMI signals can be used in conjunction with an external transistor for driving a vibrator or a backlight LED WA DEV W 218 PTS 002 Rev 005 Page 62 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE VBAT GND Figure 26 Example of a LED Driven by the PWMO or PWM1 Output The value of R607 can be harmonized depending on the LED D605 characteristics The recommended digital transistor to use for T601 is the DTC144EE from ROHM WA DEV W 218 PTS 002 Rev 005 Page 63 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE BUZZER Output The signal BUZZER outputs a square wave at the desired tone frequency The tone frequencies are programmable and can be re programmed on the fly to generate mo
66. io performance against TDMA Also special care on the PCB layout must be taken e When not used the filter can be removed by replacing L1 with a 0Q resistor and by disconnecting C2 as shown in the following schematic WA_DEV_W218_PTS_002 Rev 005 Page 54 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE 2 4V typ Internal Mic bias WISMO21 8 C G x xX N N 6i N i H N N N N MICP MIC C1 MICN Figure 18 Example of MIC Input Single Ended Connection without LC Filter 72 is from 200Hz to 4kHz For more characteristics refer to the Electrical Characteristics section The capacitor C1 is highly recommended to eliminate TDMA noise Note that C1 must be close to the microphone Recommended Components E 12pF to 33pF needs to be tuned ewe on the EORR WA DEV W 218 PTS 002 Rev 005 Page 55 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Speaker SPKP and SPKN SPK Differential Connection SPKP SPKN Figure 19 Example of Speaker Differential Connection SPK Single Ended Connection Typical implementation SPKP Speaker SPKN Figure 20 Example of Speaker Single Ended Connection 4 7uF lt C1 lt 47 uF Depending on speaker characteristics and output power Using a single ended connection includes losing output power 6dB as compared to a differential connecti
67. it input resistance 120 E KQ Input impedance input capacitance 10 pF Pin Description Table 15 Analog to Digital Converter Pin Description Caution The AUX ADCO pin is ESD sensitive It is a must to add ESD protection to this pin once it is externally accessible Recommended ESD protection AVL5M02200 from Amotech WA DEV W 218 PTS 002 Rev 005 Page 48 of 109 _ _ t Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Analog Audio Interface The WISMO218 supports one microphone input and one speaker output It also includes an echo cancellation feature which allows hands free function In some cases ESD protection must be added on the audio interface lines Microphone Features The microphone MIC can either have a single ended or a differential connection However it is strongly recommended to use a differential connection in order to reject common mode noise and TDMA noise When using a single ended connection be sure to have a very good ground plane very good filtering as well as shielding in order to avoid any disturbance on the audio path The gain of MIC inputs is internally adjusted and can be tuned using AT commands The MIC already includes suitable biasing for an electret microphone The electret microphone can then be connected directly on the inputs for easy connection AC coupling is also already embedded i
68. itors have to be soldered in parallel to the microphone CM Figure 21 Microphone Recommended Speaker Characteristics Type of speakers Electro magnetic 10mW Impedance 8 for hands free Impedance 320 for heads kit Sensitivity 110dB SPL min Receiver frequency response is compatible with the GSM specifications Recommended Filtering Components When designing a GSM application it is important to select the right audio filtering components The strongest noise called TDMA is mainly due to the demodulation of the G5M900 and DCS1800 signal A burst is produced every 4 615ms where the frequency of the TDMA signal is equal to 216 7Hz plus harmonics The TDMA noise can be suppressed by filtering the RF signal using the right decoupling components WA DEV W 218 PTS 002 Rev 005 Page 57 of 109 CHI Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE The types of filtering components are e RF decoupling inductors e RF decoupling capacitors A good Chip S Parameter simulator is proposed by Murata Refer to http www murata com products design_support mcsil index html for more details Using different Murata components we could see that the value the package and the current rating can have different decoupling effects WA_DEV_W218_PTS_002 Rev 005 Page 58 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines H
69. k configurations required and allows a wide range of network configurations to be set The AX502 standalone power supply is used to supply all motherboard components except the WISMO218 The goal is to separate the WISMO218 Development Kit board consumption from the WISMO218 consumption which is measured by the other power supply the 66321B current measuring power supply The current measuring power supply is also connected and controlled by the computer GPIB control not shown in the previous figure A SIM must be inserted in the WISMO218 Development Kit during all consumption measurements WA DEV W 218 PTS 002 Rev 005 Page 84 of 109 _ Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Table 40 Equipment Reference List Device Manufacturer Reference Notes lus Quad Band Communication Tester Rhode amp Schwartz CMU 200 GSM DCS GPRS Current measuring Agilent 66321B Used for VBATT for WMP alone power supply She s power Metrix AX502 Used for VBAT for boards peripherals WISMO218 Development Kit The WISMO218 Development Kit is used as a basis for the WISMO218 measurement via an adaptor board The WISMO218 Development Kit can be used to perform consumption measurement using several settings For the list and corresponding description of the settings see document 3 WISMO218 Development Kit User Guide and document 1 WISMO218 Har
70. laced by a 0 resistor as the shown in the following schematic WA DEV W 218 PTS 002 Rev 005 Page 52 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE p Internat Mic bias WISMO 21 8 Figure 16 Example of MIC Input Differential Connection without LC Filter The capacitor C1 is highly recommended to eliminate TDMA noise Note that C1 must be close to the microphone Recommended Components IO 12pF to 33pF needs to be tuned depending on the design C2 C3 C4 47pF needs to be tuned depending on the design L1 L2 100nH needs to be tuned depending on the design Microphone Single Ended Connection Example When single ended connection is used for MIC MICN is just left open WA DEV W 218 PTS 002 Rev 005 Page 53 of 109 Customer Design Guidelines HEART OF THE WIRELESS MACHINE 2 4V typ Internal Mic bias WISMO2 1 8 22K 0 Z2 22K Q z2 MIC Figure 17 Example of MIC Input Single Ended connection with LC Filter Z2 is from 200Hz to 4kHz For more characteristics refer to the Electrical Characteristics section Note that e Internal input impedance value becomes 1100Q due to the connection of the other end to ground e The single ended design is very sensitive to TDMA noise e It is recommended to add L1 and C2 footprint as an LC filter to try to eliminate TDMA noise e A very good grounding on the MIC is a must in order to ensure good aud
71. liant with RoHS Directive 2002 95 EC which sets limits for the use of certain restricted hazardous substances This directive states that from 1st July 2006 new electrical and electronic equipment put on the market does not contain lead mercury cadmium hexavalent chromium polybrominated biphenyls PBB or polybrominated diphenyl ethers PBDE GSM GPRS Features e 2 Watts EGSM 900 radio section running under 3 6 Volts e 1 Watt GSM1800 radio section running under 3 6 Volts e Hardware GPRS class 10 capable Interfaces e VBAT power supply e Digital section running under 2 8 Volts e 3V 1V8 SIM interface e Power supplies e Serial link UART e Analog audio e ADC WA_DEV_W218_PTS_002 Rev 005 Page 20 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE e Serial bus SPI for debug trace e PWMO 1 and PWM2 for buzzer output e GPIOs e ON OFF e TX burst indicator e Module ready indicator e Reset Firmware e Drives the WISMO218 via an AT command interface over a serial port e Full GSM GPRS Operating System stack e Real Time Clock with calendar Connection Interfaces The WISMO218 has a 46 pin castellation form factor which provides e One ANT pin for RF in out e Other pins for baseband signals WA_DEV_W218_PTS_002 Rev 005 Page 21 of 109 _ _ _ Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART
72. mended suppliers e SANYO e HOSIDEN e PRIMO e PHILIPS Antenna Cable Listed below are the recommended antenna cables to mount on the WISMO218 WA_DEV_W218_PTS_002 Rev 005 Page 101 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE e RGI178 e RG316 GSM Antenna GSM antennas and support for antenna adaptation can be obtained from manufacturers such as e ALLGON http www allgon com e HIRSCHMANN http www hirschmann com WA_DEV_W218_PTS_002 Rev 005 Page 102 of 109 m Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE 7 Noises and Design EMC Recommendations The EMC tests have to be performed as soon as possible on the application to detect any possible problems When designing a GSM terminal make sure to take note of the following items e Possible spurious emissions radiated by the application to the RF receiver in the receiver band e ESD protection is mandatory for all peripherals accessible from outside SIM serial link audio AUX ADCO etc e EMC protection on audio input output filters against 900 MHz emissions e Biasing of the microphone inputs e Length of the SIM interface lines preferably lt 10cm e Ground plane It is recommended to have a common ground plane for analog digital RF grounds e It is recommended to use a metallic case o
73. n or to adapt an existing solution to the application Both the mechanical and electrical antenna adaptations are one of the key issues in the design of the GSM terminal The RF antenna connection uses one of the castellation pins of the WISMO218 with grounded castellation pins at both sides This castellation pin must be connected to an RF 500 line in order to protect the antenna line from the noise coming from base band signals 50Q RF line WW Figure 41 Example of an RF 502 line This 50Q line is surrounded by two ground planes in order to protect this antenna line from noise The length of the line shouldn t be too long more than a few centimeters because of RF insertion loss The width of the line must be calculated in order to ensure a 50Q characteristic impedance For this same reason the RF embedded line should likewise be kept about 1cm away from any noisy baseband signal in order to ensure a good RX sensitivity level The other end of the RF 50Q line can be connected to an RF connector or a soldering pad in order to connect an antenna WA DEV W 218 PTS 002 Rev 005 Page 81 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE It is also possible to use an antenna chip or to design a PCB antenna directly on the application board The ANT pin of the WISMO218 is ESD protected for both 4KV contact and 8KV air discharge WA_DEV_W218_PTS_002 Re
74. n the WISMO218 DC Equivalent Circuit AC Equivalent Circuit MICP men FI H Z2 GND Figure 13 DC and AC Equivalent Circuits of MIC Electrical Characteristics Table 16 Electrical Characteristics of MIC Parameters Min Typ Max Unit MICP 2 4 V MICN without 2 2KQ to GND 25 7 y Internal biasing Weer DC Characteristics MICN with 2 2K to 1 2 V GND Output current mA R2 2 2 KO Se Z2 MICP AC Characteristics MICN Open 2 2 KQ WA_DEV_W218_PTS_002 Rev 005 Page 49 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Parameters Min Typ Max Unit 200 Hz lt F lt 4 kHz Z2 MICN MICP Open Z2 MICP MICN GND Z2 MICN MICP GND Impedance between MICP and MICN without 2 2KQ to GND Impedance between MICP and MICN with 3 2 2 2KQ to GND Maximum working voltage MICP MICN AT VGT 1 210 mVpp THD 1096 Maximum rating voltage MICP or MICN 0 5 4 4 The input voltage depends on the input micro gain set by the AT command Please refer to the document 2 WISMO218 AT Commands Manual Because both MICP and MICN are internally biased it is necessary to use a coupling capacitor to connect an audio signal provided by an active generator Only a passive microphone can be directly connected to the MICP input Speaker Features The speaker SPK can
75. nal for TX Burst with a 100KQ pull up resistor implemented inside the WISMO218 module Table 33 TX_CTRL Status WISMO218 State TX_CTRL Status During TX burst there will be higher current drain from the VBATT power supply which causes a voltage drop This voltage drop from VBATT is a good indication of a high current drain situation during TX burst The blinking frequency is about 216Hz The output logic low duration Tauration depends on the number of TX slots and is computed as follows Tauration Tadvance 0 577ms x number of TX slots T Tdelay TX_CTRL T duration pom gt e lt T delay Leer gt gt lt T delay VBATT Voltage drop Figure 36 TX_CTRL State During TX Burst Table 34 Electrical Characteristics of the Signal Parameter Condition Minimum Typ Maximum Unit VoH 2 6 2 95 V VoL 0 4 V T 500mA 18 us advance 1A 3 27 us WA DEV W 218 PTS 002 Rev 005 Page 76 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE REENEN KOENEN Pin Description Table 35 TX CTRL Signal Pin Descriptions Application The TX burst indication signal TX_CTRL can be used to drive a LED through a transistor It will then be a good visual indicator for any TX activities TX_CTRL GND Figure 37 Example of TX Status Implementation The value of R607 can be harmonized depending on the L
76. nd the CONFIG area must be set to the OFF position The goal of the settings listed above is to eliminate all bias current from VBATT and to supply the entire board except theWISMO218 using VBAT only WA DEV W 218 PTS 002 Rev 005 Page 85 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Socket Up Board Used There is an adaptor board which is used to adapt the WISMO218 to work on the WISMO218 Development Kit It is called the socket up board WM0801706 020 20 On this socket up board the soldering point of J203 J204 JP101 JP102 JP103 JP104 JP105 JP106 and JP107 must be opened SIM Cards Used Consumption measurement may be performed with either 3 Volt or 1 8 Volt SIM cards However all specified consumption values are for a 3 Volt SIM card Caution The SIM card s voltage is supplied by the WISMO218 s power supply Consumption measurement results may vary depending on the SIM card used WA DEV W 218 PTS 002 Rev 005 Page 86 of 109 CHI Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Software Configurations This section discusses the software configuration for the equipment s used and the WISMO218 settings WISMO 218 Configuration The WISMO218 software configuration is simply performed by selecting the operating mode to be used to perform the measurement
77. nophonic audio ringtones or alert tones The tone level can also be adjusted in 4dB steps or it can be muted Features The signal BUZZER can be used in conjunction with an external transistor MOSFET for driving a buzzer in order to give a maximum current of 100mA PEAK and an average of 40mA depending on application requirement tone level tone level tone level e E 2 EM wee pipip igg Le TL n n nr UI out __ tone half period tone half period Figure 27 BUZZER Output Table 23 BUZZER Electrical Characteristics Parameter Condition Minimum Typical Maximum Unit y High impedance load 2 7 2 85 V i Load with lon 4mA e 24 j V IPEAK x 4 mA VoL 0 1 V Frequency 200 2500 Hz Duty cycle 0 100 96 Tone level 4 dB step 24 0 dB Be mindful of the maximum frequency and the minimum maximum duty cycle There is a limitation due to the RC environment The amplitude modulation becomes less fine when the set limits are reached Pin Description Table 24 BUZZER Pin Descriptions WA_DEV_W218_PTS_002 Rev 005 Page 64 of 109 _ t Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Application The maximum peak current of the transistor MOSFET is 100mA and the maximum average current is 40mA while the peak current of the BUZZER pin should be less than 4mA A diode against transient peak voltage must be
78. ocument name to Customer Process 3 5 Changed the section title to SPI Bus for Debug Trace ONLY Changed the SPI CLK Pin number from 16 to 15 003 July 17 2009 Added an additional sentence at the end of the paragraph text 3 5 1 1 Changed the value of X101 from 3 6884MHz to 3 6864MHz 8 3 11 2 Changed the PWM1 Pin number from 27 to 35 3 12 3 Updated the section description 8 5 2 2 Changed the Recommended connection when not used column for Pin 18 TX CTRL from 2 8V TX Burst Indicator to not connected 8 5 4 Updated the description for Class B condition Deleted Figure 40 Recommended PCB landing pattern for WISMO218 WA DEV W218 PTS 002 Rev 005 Page 4 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Rev Date List of Updates 5 5 3 Added this section Made grammatical and other punctuation corrections throughout the document Updated links and references 3 8 Changed the number of General Purpose I Os from 11 to 3 3 9 2 Added a Caution box after the table 8 3 10 4 1 1 and 3 104 1 2 Removed the GND within the WISMO218 in the figures figures 15 16 17 and 18 3 10 5 5 Added additional information in the Caution box regarding the ESD sensitivity of the audio interface 5 2 2 Changed the recommended connection when not in use value from open to Ground for pin 5 AUX ADCO
79. oftware or hardware Software power off AT command AT CPOF is used to power off the WISMO218 Note If the ON OFF pin is maintained at LOW level when AT CPOF is used the module can t be switched OFF Hardware power off A LOW level pulse is applied on the ON OFF pin for 5 5sec AT CPOF will then be automatically sent to the WISMO218 Once the WISMO218 receives the AT CPOF command the WISMO218 will be deregistered from the network The WISMO READY pin will become LOW to indicate that AT commands are no longer available for the WISMO218 If the ON OFF signal is HIGH then the WISMO218 will also be switched off WA_DEV_W218_PTS_002 Rev 005 Page 69 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE VBATT hardware power off ONI OFF 55s 1 4q Lesch I software power off enter AT CPOF after ON OFF pin High ONI OFF i e enter AT CPOF __ software power off enter AT CPOF before on OFF pin High Leg ONI OFF enter AT CPOF D i Reception of PowerOff vent LongKeyPress of ON OFF PowerOff Event Software ReteasedPowerOn ie no SW running at ail VCC 2V8 l RESET 4 18ms i Fetch Ext i iii sw Figure 32 Power OFF Sequence WA_DEV_W218_PTS_002 Rev 005 Page 70 of 109 _ t E Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRE
80. on The connection between the WISMO218 pins and the speaker must be designed to keep the serial impedance lower than 1 5Q in a single ended connection SPKN can be left open in a single ended connection Design Recommendation General When both speaker and microphone are exposed to the external environment it is recommended to add ESD protection as close as possible to the speaker or microphone connected between the audio lines and a good ground When using the single ended connection of MICP ensure to have a good ground plane good filtering as well as shielding in order to avoid any disturbance on the audio path WA DEV W 218 PTS 002 Rev 005 Page 56 of 109 CHI Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE It is important to select an appropriate microphone speaker and filtering components to avoid TDMA noise Recommended Microphone Characteristics The impedance of the microphone has to be around 2KQ Sensitivity is from 40dB to 50 dB SNR gt 50 dB Frequency response is compatible with the GSM specifications To suppress TDMA noise it is highly recommended to use microphones with two internal decoupling capacitors e CMI1 56pF 0402 package for the TDMA noise coming from the demodulation of the GSM900 frequency signal e CM2 15pF 0402 package for the TDMA noise coming from the demodulation of the DCS frequency signal The capac
81. pply is 2 8V WA_DEV_W218_PTS_002 Rev 005 Page 23 of 109 _ Rm Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE 3 Interfaces General Interfaces The Wireless Standard MOdem WISMO218 has a 46 pin castellation connection which provides access to all available interfaces The available interfaces are listed in the table below Subsection Name Driven by AT Commands Serial Interface SPI No Main Serial Link Yes SIM Interface Yes General Purpose IO Yes Analog to Digital Converter No Analog Audio Interface No PWMs Yes PWM for Buzzer Output Yes ON OFF No Module Ready Indication No VBAT_RTC Backup Battery No TX Burst Indication Signal No Reset No These interfaces will have AT command support in future versions WA DEV W 218 PTS 002 Rev 005 Page 24 of 109 _ t Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Power Supply Power Supply Description The power supply is one of the key elements in the design of a GSM terminal Due to the burst emission in GSM GPRS the power supply must be able to deliver high current peaks in a short time During the peaks the ripple Urippie on the supply voltage must not exceed a certain limit see Table 1 below Listed below are the corresponding radio burst rates for the different GPRS classes in communica
82. r plastic casing with conductive paint Note The WISMO218 does not include any protection against overvoltage Power Supply The power supply is one of the key issues in the design of a GSM terminal A weak power supply design could affect the following items in particular e EMC performances e The emissions spectrum e Phase error and frequency error Caution Careful attention should be paid to the following Quality of the power supply low ripple PFM or PSM systems should be avoided a PWM converter is preferred Capacity to deliver high current peaks in a short time pulsed radio emission WA_DEV_W218_PTS_002 Rev 005 Page 103 of 109 a SIERRA WIRELESS Product Technical Specification amp Customer Design Guidelines HEART OF THE WIRELESS MACHINE 8 Appendix Standards and Recommendations GSM ETSI 3GPP and GCF recommendations for Phase II Specification Reference 3GPP TS 45 005 v5 5 0 2002 08 Release 5 GSM 02 07 V8 0 0 1999 07 GSM 02 60 V8 1 0 1999 07 GSM 03 60 V7 9 0 2002 09 3GPP TS 43 064 V5 0 0 2002 04 3GPP TS 03 22 V8 7 0 2002 08 3GPP TS 03 40 V7 5 0 2001 12 3GPP TS 03 41 V7 4 0 2000 09 ETSI EN 300 903 V8 1 1 2000 11 3GPP TS 04 06 V8 2 1 2002 05 3GPP TS 04 08 V7 18 0 2002 09 3GPP TS 04 10 V7 1 0 2001 12 transmission and reception Digital cellular telecommunications system Phase 2 Technical Specification Group Services and Syst
83. re 46 September 10 2009 Moved Recommended PCB Landing Pattern after Figure 47 WA_DEV_W218_PTS_002 Rev 005 Page 5 of 109 Sa uss SIERRA WIRELESS HEART OF THE WIRELESS MACHINE Product Technical Specification amp Customer Design Guidelines Date e 004 October 27 2009 List of Updates Updated Class A Operating Temperature Range Updated documentation reference 005 November 23 2009 ON OFF Signal Added an extra note about controlling the signal via an open collector switching transistor Updated Figure 30 to include a figure showing the signal connection via an open collector transistor Set the low level pulse length to 5 5sec Updated Figure 32 to include the 5 5s low level pulse length TX CTRL Signal for TX Burst Indication Added TX CTRL frequency and duration Updated Figure 36 to include T auation Updated Figure 37 added the transistor T601 WA DEV W218 PTS 002 Rev 005 Page 6 of 109 Sa us SIERRA WIRELESS HEART OF THE WIRELESS MACHINE Contents Product Technical Specification amp Customer Design Guidelines CONTENT per n E 7 LIST DF FIGURES uidit nib reist a inhibit uid 12 LIST OF TABLES LR e ipM i Eis MM MEM M EM 14 1 REPRE C cct K N 16 Reference Documents circi rise ark e eege eege EE 16 Sierra Wireless Reference Documentation 16 List OF
84. s and motor vehicles is shielded from RF energy However RF energy may affect some improperly shielded electronic equipment Vehicle Electronic Equipment Check your vehicle manufacturer representative to determine if any on board electronic equipment is adequately shielded from RF energy Medical Electronic Equipment Consult the manufacturer of any personal medical devices such as pacemakers hearing aids etc to determine if they are adequately shielded from external RF energy Turn your terminal OFF in health care facilities when any regulations posted in the area instruct you to do so Hospitals or health care facilities may be using RF monitoring equipment Aircraft Turn your terminal OFF before boarding any aircraft e Use it on the ground only with crew permission e Do not use it in the air To prevent possible interference with aircraft systems Federal Aviation Administration FAA regulations require you to have permission from a crew member to use your terminal while the aircraft is on the ground To prevent interference with cellular systems local RF regulations prohibit using your modem while airborne WA_DEV_W218_PTS_002 Rev 005 Page 108 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Children Do not allow children to play with your GSM terminal It is not a toy Children could hurt themselves or others by poking themselves or oth
85. te Description with SIM CLK 9 O 2V9 1V8 0 SIM Clock Not mux SIM RST 11 O 2V9 1V8 0 SIM Reset Not mux SIM IO 10 y o 2V9 1V8 Pull up SIM Data Not mux SIM VCC 8 O 2V9 1V8 SIM Power Supply Not mux WA_DEV_W218_PTS_002 Rev 005 Page 45 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Application SIM VCC WISMO218 GND Figure 12 Example of SIM Socket Implementation Table 11 Recommended Components Component Description Details Manufacturer C400 100nF D400 ESDA6V1SC6 ST D401 DALC208SC6 SGS THOMSON J400 ITT CANNON CCMO3 series CANNON See the SIM Card Reader sub section for more information SIM socket connection Table 12 Pin Description of the SIM Socket Signal Pin Number Description VCC 1 SIM VCC RST 2 SIM RST CLK 3 SIM CLK CC4 4 Not connected GND 5 GROUND VPP 6 Not connected I O 7 SIM IO CC8 8 Not connected Note CC4 and CC8 are not connected as the WISMO218 does not support SIM detect feature WA DEV W 218 PTS 002 Rev 005 Page 46 of 109 a uss SIERRA WIRELESS HEART OF THE WIRELESS MACHINE Product Technical Specification amp Customer Design Guidelines General Purpose Input Output The WISMO218 provides up to 3 General Purpose I Os They are used to control any external device such as an LCD or a Keyboard backlig
86. technology The GSM standard is spread all over the world It covers Europe Asia and some parts of America and Africa This is the most used telecommunication standard Your GSM terminal is actually a low power radio transmitter and receiver It sends out and receives radio frequency energy When you use your GSM application the cellular system which handles your calls controls both the radio frequency and the power level of your cellular modem Exposure to RF Energy There has been some public concern about possible health effects from using GSM terminals Although research on health effects from RF energy has focused on the current RF technology for many years scientists have begun research regarding newer radio technologies such as GSM After existing research had been reviewed and after compliance to all applicable safety standards had been tested it has been concluded that the product was fit for use If you are concerned about exposure to RF energy there are things you can do to minimize exposure Obviously limiting the duration of your calls will reduce your exposure to RF energy In addition you can reduce RF exposure by operating your cellular terminal efficiently by following the guidelines below Efficient Terminal Operation For your GSM terminal to operate at the lowest power level consistent with satisfactory call quality If your terminal has an extendible antenna extend it fully Some models allow you to place a call with
87. th a battery the total impedance battery protections PCB should be less than 150mQ Pin Description Table 2 Power Supply Pin Descriptions VBATT 29 30 Application The reject filter can be connected between VBATT and the supply sources if the supply source is noisy Caution f the reject filter C1 L1 C2 is an option a capacitor i e C2 is mandatory close to the VBATT flt WISMO218 Supply source Figure 3 Reject Filter Diagram WA DEV W 218 PTS 002 Rev 005 Page 26 of 109 Sa us SIERRA WIRELESS HEART OF THE WIRELESS MACHINE Recommended Components C1 C2 10uF 20 Product Technical Specification amp Customer Design Guidelines Component Manufacturer GRM21BR60J106KE19L MURATA CM21X5R106MO6AT KYOCERA JMK212BJ106MG T TAYO YUDEN C2012X5R0J106MT TDK L1 220nH 5 me ew 0805CS 221XJLC COILCRAFT 0805G221J E STETCO WA_DEV_W218_PTS_002 Rev 005 Page 27 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Power Consumption Various Operating Modes There are various kinds of operating modes for the WISMO218 as defined in the table below Table 3 WISMO218 Operating Modes Mode Description OFF Mode When VBATT power is supplied to the WISMO218 but has not yet been powered ON When alarm clock is set for the WISMO218 with ALL of the following conditions e be
88. the longer the response time is the higher the consumption is WA_DEV_W218_PTS_002 Rev 005 Page 29 of 109 t E Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE rx means that the current peak is the RF transmission burst Tx burst gx means that the current peak is the RF reception burst Rx burst in GSM mode only worst case Three VBATT values are used to measure the power consumption VBATTmin 3 2V VBATTmax 4 8V and VBATTtyp 3 6V The average current is given for the three VBATT values and the peak current given is the maximum current peak measured with the three VBATT voltages For more information about the consumption measurement procedure refer to Section 4 Consumption Measurement Procedure Consumption Waveform Samples The consumption waveforms presented below are for an EGSM900 network configuration The typical VBATT voltage is 3 6V Four significant operating mode consumption waveforms are shown in the following subsections namely e Connected Mode PCL5 Tx power 33dBm e Transfer mode GPRS class 10 gam 3 Tx power 33dBm e Idle mode Paging 2 e Idle mode Paging 9 Note that the following diagrams only show the waveform of the current but not the exact values WA_DEV_W218_PTS_002 Rev 005 Page 30 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE
89. tion mode e A GSM GPRS class 2 terminal emits 577us radio bursts every 4 615ms See Figure 2 Power Supply During Burst Emission below voccs m Y Uripp Uripp T T24 615 ms Figure 2 Power Supply During Burst Emission e A GPRS class 10 terminal emits 1154us radio bursts every 4 615ms VBATT provides for the following functions e Directly supplies the RF components with 3 6V It is essential to keep a minimum voltage ripple at this connection in order to avoid any phase error The peak current 1 4A peak in GSM GPRS mode flows with a ratio of 1 8 of the time around 577us every 4 615ms for GSM GPRS cl 2 and 1 4 of the time around 1154s every 4 615ms for GSM GPRS cl 10 with the rising time at around 10us e Internally used to provide via several regulators the supply required for the baseband signals WA_DEV_W218_PTS_002 Rev 005 Page 25 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Electrical Characteristics Table 1 Input Power Supply Voltage Vin VNoM Vmax Ityp Imax Ripple max Uripp 10kHz to 100kHz less than100mVpp VBATT 3 2 1 3 6 4 8 1 35A 1 4A greater than 100kHz less than 10mVpp 1 This value has to be guaranteed during the burst with 1 4A Peak in GSM or GPRS mode 2 Maximum operating Voltage Stationary Wave Ratio VSWR 1 5 1 When powering the WISMO218 wi
90. v 005 Page 82 of 109 tz Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE 4 Consumption Measurement Procedure This chapter describes the consumption measurement procedure used to obtain the WISMO218 consumption specification The WISMO218 consumption specification values are measured for all operating modes available on the product Consumption results are highly dependent on the hardware configuration used during measurement This chapter also describes the hardware configuration settings that must be used to obtain optimum consumption measurements Hardware Configuration The following hardware configuration includes both the measurement equipment and the WISMO218 with its socket up board on the WISMO218 development kit Equipment Four devices are used to perform consumption measurement e A communication tester e Acurrent measuring power supply e A standalone power supply e A computer to control the WISMO218 and save measurement data WA DEV W 218 PTS 002 Rev 005 Page 83 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE CMU200 OQ 4V AX502 GND UART1 link d Development WISMC 18 MISMO 18 T Figure 42 Typical hardware configuration The communication tester is a CMU 200 from Rhode amp Schwartz This tester offers all GSM GPRS networ
91. ves the recommended connection for any unused pins Pin Signal See Pin Signal Recommended Connection not Used when not Used 1 SPKP open 24 GPIO1 open 2 SPKN open 25 SPI IRQ PCB test point 3 MICP open 26 GND Ground 4 MICN open 27 NC Not connected 5 AUX_ADCO Ground 28 GND Ground 6 BAT RTC open 29 VBATT Power supply 7 WISMO READY open 30 VBATT Power supply 8 SIM VCC SIM power supply 31 GND Ground 9 SIM CLK SIM clock 32 NC Not connected 10 SIM IO SIM data 33 NC Not connected 11 SIM RST SIM reset 34 BUZZER open 12 RESET open 35 PWM1 open 13 SPHIO PCB test point 36 PWMO open 14 SPI O PCB test point 37 On OFF Power On control signal 15 SPI CLK PCB test point 38 CT103 T XD 2 8V UART1 Transmit data 16 GPIO3 open 39 CT105 RTS Connect to CT106 CTS 17 SPI CS PCB test point 40 CT104 RXD 2 8V UART1 Receive data 18 TX_CTRL not connected 41 CT106 CTS Connect to CT105 RTS 19 GPIO5 open 42 CT107 DSR Connect to CT108 DTRNote 1 20 GND Ground 43 CT109 DCD open 21 ANT Radio antenna connection 44 CT108 DTR Connect to CT107 DSR Note 1 22 GND Ground 45 CT125 RI open 23 GND Ground 46 VCC 2V8 open WA DEV W218 PTS 002 Rev 005 Page 93 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Note 1 Please refer to the recommendations specified in the Pin Description sub section regarding the conne
92. xwan naka 62 Table 23 BUZZER Electrical Characteristics nennen netten enne tin 64 Table 24 BUZZER Pin Descriptions h W k KAlll kk kk kk kk kake kk kk kak AKA kak nennen enn 64 Table 25 Electrical Characteristics of the ON OFF Signal eene 67 Table 26 ON OFF Signal Pin Descriptions kakilka k laka ekalakakana xak awka ak Ayak nnne 67 Table 27 Electrical Characteristics of the Sional kk kk kk T1 Table 28 WISMO READY Indication Pin Descriptions NEE 11 Table 29 Electrical Characteristics of the Signals 72 Table 30 VCC 2V8 unsruicc 72 Table 31 Electrical Characteristics of the Sional kek kk ke 73 Table 32 BAT RTC Pin Descriptions kaka nnne nnn ener nnn 13 Table 33 TX CURE Status ttti er n tr err nsn axe E X aX e Kwe dal M UE ein 16 WA DEV W218 PTS 002 Rev 005 Page 14 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE Table 34 Electrical Characteristics of the Sional kk 76 Table 35 TX CTRL Signal Pin Descriptions ENNEN TI Table 36 Electrical Characteristics of the Signals 18 Table 37 Reset Pin Descriptions M hMM llk llllll kk ka kake k y k kak kk enne enn enn enn 18 Table 38 Reset Commands iiec llke or d k ek s lke bak ke sec nc ere belka k ever Fe nir ca X Xe e k l y 79 Table 39 Anterina Specifications uc cx i i i RE HEC UR EE E DECR ERE EUER RR 81 Table 40 Equipment R
93. zer PWM2 o 12 RESET input reset signal l 35 PWM1 2 8V DC PWM 1 O 13 SPI IO 2 8V SPI data input uo 36 PWMO 2 8V DC PWM 0 o 14 SPI O 2 8V SPI data output O 37 On OFF Peel SSES 15 SPI CLK 2 8V SPI clock output O 38 CT103 TXD GE VARTI Transmit 1 16 GPIO3 2 8V GPIO uo 39 cT105 RTS 25V UART1 Request to send 17 SPI CS 2 8V SPI chip select o 40 CT104 RXD 2 8V UART1 Receive o output data 18 TX CTRL 2 8V TX Burst Indicator O 41 cr oe crs 28V UARTT Clearto o 19 GPIO5 2 8V GPIO uo 42 CT107 DSR eo E Dataset o 20 GND Ground Groun 43 cr ogpcp 28V VARTI Data o d carrier detect 21 ANT Radio antenna Te 44 CT108 DTR 2 8V UART1 Data connection terminal ready 22 GND Ground Groun 45 CT125 RI 2V UARTIE RING o d indicator 23 GND Ground Groun 46 voc 2yg 2 BV power supply o d from module WA_DEV_W218_PTS_002 Rev 005 Page 91 of 109 Product Technical Specification amp SIERRA WIRELESS Customer Design Guidelines HEART OF THE WIRELESS MACHINE UART signal names are according to PC view The I O direction information only concerns the nominal signal When the signal is configured in GPIO it can either be an Input or an Output WA_DEV_W218_PTS_002 Rev 005 Page 92 of 109 Sa ss SIERRA WIRELESS HEART OF THE WIRELESS MACHINE Product Technical Specification amp Recommended Connection When Not Used Customer Design Guidelines The table below gi

Sierra Wireless WISMO218 Modem User Manual

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