M22 Datasheet

©2004 BenQ Corp.Confidential Property1 M22GSM / GPRS Wireless Module DATASHEET Rev. 0.2 AUG/05/ 2004not be disclosed to others parties in whole or in parts The documents contain information on a product, which is under development and is issued for cus-tomer evaluation purposes only.BENQ may make changes to product specifications at any time, without notice .BenQ Corp.Networking & Communications BG18 JiHu Road, Nei-Hu, Taipei 114, Taiwan, R.O.C. Tel: +886-2-2799-8800 Fax: +886-2-2799-8332 ©2004 BenQ Corp.Confidential Property2 HISTORYVersion Date NotesVER: 0.1 12-DEC-2003FIRST RELEASEVER: 0.205-AUG-2004 ADD HUMIDITY©2004 BenQ Corp.Confidential Property31. INTRODUCTION .............................................................................................................5 1.1. DESCRIPTION..........................................................................................................5 1.2.APPLICATION DEVICE (5)2. FEATURES ......................................................................................................................6 2.1. G ENERAL C HARACTERISTICS ......................................................................................6 2.2. V OICE /D ATA S ERVICE .................................................................................................8 T ELE S ERVICE .........................................................................................................................8 S HORT M ESSAGE S ERVICE ......................................................................................................8 FAX S ERVICE ..........................................................................................................................8 C IRCUIT S WITCH .....................................................................................................................8 P ACKET S WITCH 2.3. S UPPLEMENTARY S ERVICE N UMBER IDENTIFICATION C ALL O FFERING C ALL C OMPLETION M ULTI -P ARTY C ALL -BARRING 2.4. RF F M AXIMUM P ARAMETRIC P S ENSITIVITY R ADIO F REQUENCY ...............................................................................................................10 3. HARDWARE DESCRIPTION ......................................................................................11 3.1. INTERFACE............................................................................................................11 3.2. F UNCTIONAL D IAGRAM .............................................................................................12 3.3. P IN D ESCRIPTION ......................................................................................................13 D ESCRIPTION T ABLE .............................................................................................................13 UART/RS232.......................................................................................................................13 UART 2................................................................................................................................14 BU........................................................................................................................................14 GPIO....................................................................................................................................14 LED D RIVER ........................................................................................................................14 SIM F UNCTION .....................................................................................................................14 VBAT.. (15)©2004 BenQ Corp.Confidential Property4 A UDIO F UNCTION ..................................................................................................................15 BGND..................................................................................................................................15 I NTERRUPT ............................................................................................................................15 P OWER ON............................................................................................................................16 A NTENNA ..............................................................................................................................16 3.4. M22 T ERMINAL D EFINITION .....................................................................................16 3.5. E LECTRICAL C HARACTERISTICS ................................................................................17 O PERATING V OLTAGE /C URRENT C HARACTERISTICS .............................................................19 A UDIO U PLINK C HARACTERISTICS ........................................................................................19 A UDIO D OWNLINK C HARACTERISTICS ..................................................................................19 G LOBAL C HARACTERISTICS ..................................................................................................19 3.6. E NVIRONMENTAL ......................................................................................................20 3.7. P HYSICAL P ACKAGE ..................................................................................................21 4. SOFTWARE CHARACTERISTICS 4.1. I NTRODUCTION 4.2. S OFTWARE A RCHITECTURE 4.3.S OFTWARE A©2004 BenQ Corp.Confidential Property5 1. INTRODUCTION1.1. DESCRIPTION OverviewThe document describes all the functions, features, and interfaces of the GSM/GPRS Tri band Module M22 from BenQ. The M22 GSM/GPRS module can provide wireless communication solution for any product that has requirement of voice communication and data transmission through state of the art cellular technology.With the BENQ M22 GSM/GPRS module, devices are enhanced in both functionality and us-ability based on state of the art wireless technology.1.2. APPLICATION DEVICEThis module is designed to satisfy manufacturers, which also have a physical dimension con-this module are: l Wireless PSTN l Mobile Trunk l Car Phone/Telemetric l l l©2004 BenQ Corp.Confidential Property6 2. Features2.1. General Characteristics lBAND: EGSM 900/DCS 1800/PCS 1900 MHZTXRXEGSM 880~915 MHz 925~960MHz DCS 1710~1785MHz 1805~1880MHz PCS1850~1910MHz1930~1990MHzl GSM/GPRS: Phase 2+ Compliancei. GPRS Class 4: Max 3 downlink, 1 uplink, max 4 slot ii.GPRS Class B: Simultaneous l attach l activation l monitorl no simultaneous traffic. i.Coding Scheme:l CS1 - 9.05 kbps l CS2 - 13.4 kbps l l l l Form factori. ii.l PowerOperation Voltage: 3.2V – 4.2V l Power Consumption:Speech Mode: 230 mA (min), 260 mA (max)Standby Mode: < 6 mA (paging rate 2),< 3 mA (paging rate 9) at GSM 900Mhz GPRS : 250 mA (max) l Hardware Output:44 Pins female connector interface. l UART/RS232RS232 transmit interfacel UART 2Software Debugl BUBuzzer Output l GPIOGeneral Purpose I/Ol Power On Power On Pin l LED DriverLED Driver, Paging©2004 BenQ Corp.Confidential Property7 l SIM SIM Function l VBAT Battery Voltage Input l AudioEarphone/MIC/Hand freel Keypad Interrupt Keypad Interruptl BGND GND l ANT Antennal Software Interface: GSM Rec. 27.07 l General l Call Control l Network Service l ME Control and Status l ME Errors l TIA IS-101GSM Rec. 27.05l SMS related services l l l lITU-T Rec. V25ter l General TA Controll Call Control and Command Response l Data CompressionITU-T Rec. T.32 l Action Command l DCE Response l Service CommandNote: For software AT commands, please refer to the M22 AT Command List.©2004 BenQ Corp.Confidential Property8 2.2. Voice/Data Service Tele Servicel Speech Service With EFR (Enhance Full Rate)/FR (Full Rate)/HR (Half Rate) Codec. l Emergency Call lDTMF Tone GenerationShort Message Servicel SMS with MT (Mobile Terminate)/PP, MO (Mobile Originated)/PP l Delivery Report lCell BroadcastFAX Servicel Direction: MOC (Mobile originated call) & MTC (Mobile terminated call) l Fax GSM TS 3.45 fax transparent mode l TS 61, 62l l l lCircuit Switchl l l l lPacket Switchl GPRS Class B devicel Multi-Slot Transmission up to Class 4, 1 uplink slot, 3 downlink slot l Coding Scheme CS1 – CS4 Supported©2004 BenQ Corp.Confidential Property9 2.3. Supplementary Service Number identificationl Calling line identification presentation (CLIP) l Calling line identification restriction (CLIR) l Connected line identification presentation (CoLP) l Connected line identification restriction (CoLR)Call Offeringl Call forwarding unconditional (CFU)l Call forwarding on mobile subscriber busy (CFB) l Call forwarding on no reply (CFNRy)l Call forwarding on mobile subscriber not reachable (CFNRc)Call Completionl Call waiting (CW) lCall hold (HOLD)Multi-PartylMPTY Supported Call-barring 1. 2. 3. 4. 5.2.4. RF FunctionalitiesMaximum TX PowerThe performance of the transmitter meets test requirement GSM 11.10 Chapter 13.Band Max MinEGSM33 dBm ¡Ó2dBm 5 dBm ¡Ó5dBmDCS 30 dBm ¡Ó2dBm 0 dBm ¡Ó5dBmPCS 30 dBm ¡Ó2dBm 0 dBm ¡Ó5dBmParametric PerformanceTests carried out at -20ºC, 25ºC and 60ºC for each voltage 3.6V, 3.8V and 4.0V. The Measure Peak Phase, RMS Phase, frequency error, power level, and static sensitivity meets GSM 11.10 specifica-tionsBand Peak Phase Error RMS Phase ErrorEGSM<20¢X<5¢XDCS <20¢X<5¢XPCS <20¢X<5¢XSensitivity©2004 BenQ Corp. Confidential Property10©2004 BenQ Corp. Confidential Property 113. Hardware Description3.1. INTERFACEThe function description of the M22 module is illustrated as the following table. The pins of the M22 module support functions like UART, GPIO, AUDIO, SIM …etc. These features can meet cus-tomer design requirement for Car Phone. 44 Pins female connector interface3.2. Functional Diagram©2004 BenQ Corp. Confidential Property123.3. Pin DescriptionDescription TableUART/RS232The UART includes the following additional features- Hardware flow control (DSR, RTS/CTS)- Auto-baud rate with the possibility of baud-rates ranging from 1200 to 115.2K bits.Pin Name Pin Out Pull Reset Config DescriptionTXD34 1 Output/1 Transmit DataRXD33 PU Input Input Receive DataRTS 32 Output / 1 Output/1 Request to SendCTS 31 PD Input Input Clear to SendDSR30 PU Input Input Data Set ReadyIO 8/DTR 29 1 Output/1 Data Terminal Ready©2004 BenQ Corp. Confidential Property13Note: The difference between Reset and Config is in the pin definition tablePin IO 1 / IO 12 / IO 8 is dedicated to UART functions.UART 2Used for software debug.Pin Name Pin Out Pull Reset Config DescriptionTXD2 8 1 Output/1 Transmit DataRXD2 37 PU Input Input Receive DataBUWhen there is an incoming call, the Buzzer will generate a pulse.Pin Name Pin Out Pull Reset Config DescriptionBU 36 0 Output/0 Buzzer Output PinGPIOThe initial status is listed as follows:i. In the initial mode (no voltage input), this pin will be in HIGH status.ii. In standby mode it will be pulled low for 500 ms and then pulled high for 500 ms, alternately. iii. In active mode (Incoming call) it will be pulled low 125 ms and pull high 125 ms.Pin Name Pin Out Pull Reset Config DescriptionLEDA 6 Input LED DRIVER, paging IndicatorNote: 1) The maximum current is 10 mA.2) The LEDA voltage range is 0.4 V ~ VBATBBSIM FunctionThe SIM Card digital interface in ABB insures the t ranslation of logic levels between DBB and SIM Card for the transmission of 3 different signals: a clock signal, derived from a clock elaborated in DBB, to SIM Card (SIM_CLK); a reset signal, from DBB to the SIM Card (SIM_RST); and serial data from DBB to SIM Card (SIM_IO) and vice-versa.©2004 BenQ Corp. Confidential Property14©2004 BenQ Corp. Confidential Property 15 VBATThe maximum and minimum voltage will be defined in the Electrical Characteristics T able .Audio FunctionInterruptFor dual processor use, an interrupt signal from the external processor can be sent to the module when needed.Pin Name Pin OutPull Reset Config DescriptionIO10 39 Input Output/0 Module wakes up host system ROW 47PUInputInputExternal Device interrupt M22Note: Detailed interrupt sequences between the host and module is given in the M22 design guide.Pin Name Pin OutPull Reset ConfigDescription SIM_CLK 11 0 Output SIM Clock SIM_RST 13 0 Output SIM ResetSIM_IO12 0 Input /Output SIM Input / Output VRSIM (3V)23OutputRegulator SIM OutputPin Name Pin OutPull Reset Config DescriptionVBATRF 41 Input RF PA Power Voltage input VBATRF 42 Input RF PA Power Voltage input VBATRF 43 Input RF PA Power Voltage input VBATBB1InputSystem Power Voltage input©2004 BenQ Corp. Confidential Property 16Power ONThe Power On Pin needs to be pulled low for at least 120ms to operateAntenna3.4. M22 Terminal DefinitionVBATRF VBATRF VBATRF GND IO10PWON RXD2DSR IO8IO13IO11GND IO6VRSIMCTS BU RTS GND GND TXD RXDPin Name Pin OutPull Reset Config Description PWON38PUInputPower OnPin Name Pin Out Pull Reset Config DescriptionAntMMCX connectorAntenna interface (50 Ohm)3.5. Electrical Characteristics©2004 BenQ Corp. Confidential Property17©2004 BenQ Corp. Confidential Property18Operating Voltage/Current CharacteristicsParameter Description Min Typ Max UnitSupply Voltage range VBATRF 3.3 3.6 5.0 VPeak VBATRF Current 1.8 AAverage VBATRF Current 230 260 mA Average Standby mode VBATRF current Paging Rate 9 3 mAVih High-level input voltage 1.96 3.3 VVil Low-level input voltage -0.5 0.84 VVoh High-level output voltage 2.24 VVol Low-level output voltage 0.616 VSIM_CLK Output frequency 1.625 3.25 MHzVRSIM SIMSEL=1 2.7 2.85 3.0 VAudio Uplink CharacteristicsGlobal CharacteristicsParameter Conditions Min Typ Max Unit Maximum Output Swing5% distortion and 120O 3.1 3.92 Vpp EARP – EARN 5% distortion and 33O 1.2 1.5 Vpp Earphone amplifier gain 1 dB Earphone amplifier state in power down Hi-ZMaximum Output swing at AUXOP 5% distortion maximum, load = 1k O 1.6 1.96 Vpp Auxiliary amplifier gain (AUXO) -5 dB AUXO amplifier state in power down Hi-ZPower Supply Rejection 40 dB©2004 BenQ Corp. Confidential Property19©2004 BenQ Corp.Confidential Property20 3.6. EnvironmentalOperational temperature : -20 ~ +60 ¢J Functional temperature : -20 ~ +70 ¢J Storage temperature : -40 ~ +85 ¢JHumidity: 95%©2004 BenQ Corp. Confidential Property213.7. Physical PackageTop View©2004 BenQ Corp. Confidential Property22©2004 BenQ Corp.Confidential Property23 4. Software Characteristics4.1. IntroductionThe following descriptions define the BenQ M22 module software architecture. For wireless PSTN customers, BenQ provides the supporting AT Commands. For telemetric application, the following is needed: Address book, PC sync, Grouping by Ring Tones, and FAX .4.2. Software ArchitectureBenQ provides the Layer 1 driver and AT command. Based on different customer needs, different software architectures will be supported. This will be defined in the next section.Architecture:n Layer 1 Drivern Protocol Stack/AT Commandn Basic interface4.3.Due to the fact that there are both processors in BenQ’s Module and the wireless PSTN, the common interface uses the AT Command. The software architecture was showed as the following diagram. Customers can use BenQ provided AT Commands to access the GSM/GPRS network on their plat-form.L1 driver。