TR-900 GSM/GPRS Module Product Technical Specifications Date : 30 May 2011 Document Version : 1.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 Document History Revision Date Document History 1.0 20 Dec 2010 Preliminary Release 1.1 30 May 2011 Commercial Release Updated on contents and electrical characteristics Updated information on power consumption Updated TR-900 mechanical drawing All specifications are correct at the time of release. iWOW Connections owns the proprietary rights to the information contained herein this document.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 GENERAL NOTE This document aims to support the application and engineering efforts of iWOW’s customers. This document is intended for testing, evaluation, integration, and information purposes only. iWOW makes every effort to ensure that the quality of the information. However, the content of this documentation is provided on an “as is” basis and may contain deficiencies or inadequacies.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 TABLE OF CONTENTS 1 INTRODUCTION ............................................................................................................................ 1 1.1 Reference Documents ................................................................................................................... 1 1.2 Abbreviations ...............................................................................................................
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.10.2 4.11 4.11.1 4.12 4.12.1 4.13 4.13.1 4.14 SIM Card Holder / SIM Chip ..................................................................................................... 24 Serial Link (UART) Interfaces ........................................................................................................ 24 Modem port - UART_TX, UART_RX, UART_CTS, UART_RTS, RI, DCD, DTR, DSR ............................ 24 Application ....
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 1 Introduction This document describes the hardware interface, including interface specifications, electrical and mechanical details, of the TR-900 module that connects to the cellular device application. 1.1 S/N Reference Documents Document 1 TR-900 AT Commands Guide 2 TR-900 Development Starter Kit User Guide 1.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 1.3 Safety Precautions For your own safety, please follow the safety precautions listed below during all phases of the operation, usage, service or repair of any cellular terminal or mobile incorporating the TR-900 Module.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 Manufacturers of cellular terminal or mobile equipment incorporating the TR-900 are required to test their final products to ensure compliance to these EMC tests/requirements: ESD Radiated Spurious Emissions Conducted Emissions, if applicable Further tests if applicable The module was not assessed against the essential requirement ‘health’.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 If the final product after integration is intended for portable use, a new application and FCC is required. It is mandatory to meet the SAR requirements for portable device. Note: TR-900 operation is subject to the following two conditions: (1) this device may not cause harmful interference (2) this device must accept any interference, including interference that may cause undesired operation.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 2 Technical Specifications 2.1 General Specifications Feature Network Type Description Quad-Band GSM/GPRS Frequency Bands Quad Band: GSM850 / EGSM900 / DCS1800 / PCS1900 Output Power GSM 850 / EGSM 900 : Class 4 (2W) DCS1800 / PCS1900: Class 1 (1W) Compliant to GSM 07.05 and GSM 07.07 recommendations iWOW Proprietary AT Commands Dimensions: 38mm x 31mm x 3.5mm Weight: 6.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 2.5 Interface Specifications Feature 60-pin Description Board-to-Board Connector Others Power Supply Back-up Battery Keypad 1 Serial Link UART USB 2.0 1.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 3 Functional Architecture Figure 1 shows a block diagram of TR-900 module and illustrate the major functional components. Figure 2: TR-900 Functional Architecture Block Diagram All specifications are correct at the time of release. iWOW Connections owns the proprietary rights to the information contained herein this document. It may not be edited, copied or circulated without prior written agreement by iWOW Connections Pte Ltd.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4 INTERFACES This section describes the available interfaces and their characteristics. All Pin Voltage are supplying at nominal 1.8V unless specified otherwise. 4.1 General-Purpose Connector (GPC) The General-Purpose Connector (GPC) is provided to interface to the TR-900 module. The GPC is a 60-pin 0.5mm-pitch board-to-board socket from Astron with a part reference of 6091060-252-R.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.1.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 Pin Signal Name Signal I/O Description SPI data: Master out/Slave in O = SPI serial data master-out I = SPI serial data slave-in SPI serial clock General Purpose IO SIM Reset Power supply for 1.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.2 Power Supply and Ground – VBAT, GND The power supply design is one of the key design areas for a GSM terminal due to the burst characteristics of GSM transmission. The supply must be able to deliver very high current peaks in a very short time during a GSM transmit burst, typically up to 2A. During these bursts, it is recommended that the voltage drop does not exceed 400mV.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.3 Operating Modes Operation Type Mode Description Normal Operation GSM IDLE The module is registered to the network. Power consumption depends on the interval of the network paging. GSM CONNECTED The module has established a call connection with the network. Power consumption depends on the network settings and coverage GPRS IDLE The module is attached to the GPRS network.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.3.1 Power Specs Operating Mode Conditions Average Burst Unit Power Down VBATT = 3.6V 54 - µA Minimum Function VBATT = 3.6V 1.2 - mA Airplane Mode VBATT = 3.6V 1.3 - mA GSM/GPRS Idle DRX = 2 21 - mA DRX = 9 20 - mA DRX = 2 3.1 - mA DRX = 9 1.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.4.1 Application If needed, to provide additional buffer to sustain the RTC functionality when VBAT has been removed, a backup capacitor can be connected on VBACKUP via a series resistor of 470 ohms.. TR-900 GPC Figure 4: Example Voltage Backup connection 4.5 Battery-Charging Interface (BCI) – PCHG, ICTL, VCCS This feature controls the charging of Lithium Polymer or Lithium-ion batteries.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 Note: For charger voltage input, connect VBAT to relevant pins of charging IC Pin Description Signal Pin Number Type ICTL 57 Analog Output VCCS 58 Analog Input Description Termination Charger external transistor control Open Charging current sense Open Note: Short VCCS to VBAT to when not in use. 4.6 Analog to Digital Converter (ADC) – ADCIN1, ADCIN2 The module provides two 10-bit ADC inputs, ADCIN1 and ADCIN2.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.7 Power ON Control - PWON This input pin is used to switch the module ON. A switch-ON interruption is triggered in the module at the detection of a falling edge of this signal pin over a period of 40ms. A capacitor of value about 15nF can be placed close to the pin on the GPC to improve its ESD shielding. Note: The module should be properly switched OFF before all power supplies are removed.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.7.2 Switch-ON Condition The module has to be in the OFF state. This condition will switch-ON the module: When a falling edge, after debouncing, is detected on the PWON pin. The PWON pin is debounced by embedded hardware. The debouncing time is approximately 30ms. There are two cases when this switch-ON sequence does not happen: When the main supply is under 3.2V.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 Note: When the switch-OFF sequence is started, the sequence is completed even if a switch-ON condition occurs. In this event, data corruption may occur if flash writing is in progress. TR-900 GPC TR-900 GPC Figure 6. Example of the PWON Pin Connection Either By a Switch or Via an Open Collector Transistor 4.8 Reset Signal - RESET This reset Pin 10 provides an unconditional hardware reset input to the module.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 Parameters Min Nom Max Unit Operating Mode High level input voltage, VIH 1.17 - - V Reset Inactive Low level input voltage, VIL - - 0.63 V Reset Activated Note: The hardware reset is to be used with caution. It may cause data loss in the volatile memory. It is designed for emergency where the module fails to respond for more than 30 sec.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.9 Digital Supply Output - VIO This internally regulated digital supply output can be used to supply external peripherals like a LED circuitry. It will only be available after the module is switched-ON and as such, this pin can be used to signalize the module’s state, indicating whether it is in ON or OFF mode.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 Electrical Characteristics Parameters Conditions Min Nom Max Unit SIM 3V 2.7 2.85 2.95 V SIM 1.8V 1.65 1.8 1.95 V SIMDTC, Low level input voltage, VIL - - 0.54 V SIMDTC, High level input voltage, VIH 1.17 - - V SIMDTC, Debouncing time (SIM-card insertion) 0.5 - 8 ms SIMDTC, Debouncing time (SIM-card extraction) 0.5 - 8 ms VRSIM TR-900 GPC Figure 9. Example of a SIM Socket Implementation 4.10.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.10.2 SIM Card Holder / SIM Chip An optional SIM card holder / SIM Chip may be placed on top of the TR-900 module. Embedded SIM pads Pads for SIM Card Holder Figure 10. SIM Pad on TR-900 4.11 Serial Link (UART) Interfaces 4.11.1 Modem port - UART_TX, UART_RX, UART_CTS, UART_RTS, RI, DCD, DTR, DSR These interfaces are assigned to the module communication with the application board using AT Commands.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 Signal Pin Number I/O I/O Type Reset State Description control RI 19 Output 1V8 1 Ring Indicator DCD 26 Output 1V8 1 Data Carrier Detect DTR 35 Input 1V8 1 Data Terminal Ready DSR 18 Output 1V8 1 Data Set Ready Note: RI, DCD, DTR and DSR are not enabled in the standard module firmware. Please contact iWOW for more information.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 Data Set Ready (DSR) and RI can be implemented using GPIO 1,2 respectively by connecting the signals to a level shifter before interfacing with RS-232. Do note that DCD, DTR and DSR can be set via AT-commands AT&C, AT&D and AT&S respectively. 4.12.1 Ring Indicate - RI The Ring Indicator (RI) is used for network activity indication.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.13 USB Interface – VBUS, USB_DM, USB_DP The USB interface supports a USB 2.0 Full Speed (12 Mbits/s) and low-speed (1.5 Mbits/s) operations. It is primarily intended for flashing of firmware and for use as command and data interface. Note: Connection of a 4.7F Capacitor externally at VBUS for filtering is required.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.14 Analog Audio Interfaces – MICIN, MICIP, EARN, EARP, SPKNA, SPKPA 4.14.1 Microphone input – MICIN, MICIP The handset differential inputs MICIP and MICIN can be amplified by the differential handset microphone amplifier. The microphone reference voltage is at 2V. The audio gain of the microphone signal (MICP-MICN) is adjustable using AT command. AT$VTXG= where Level is from 0-100.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.14.2.2 Single-end Single ended connection is not the recommended approach. The following diagram shows a possible implementation. C1 need to be placed near MIC while C2 and L1 placed IC pins. The capacitance values chosen may need to be optimized based on application, for GSM related EMI, C1 can be from 11 pF to 47 pF for a 0402 size while C2 and L1 need to be tuned according to the requirement.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 Figure 14: Example of earphone implementation 4.14.4 Speaker – SPKNA, SPKPA The class D amplifier is capable of driving 700 mWrms into an 8 ohms load. Default switching frequency is 600 kHz. Pin Description Signal SPKNA Pin Number 51 Type Output Description Speaker signal (-ve) SPKPA 52 Output Speaker signal (+ve) Electrical Characteristic Parameters Output Load Resistance Min Nom Max Unit - 8 - Ω 4.14.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.15 Digital Audio Interface – MCSI_CK, MCSI_FS, MCSI_RX, MCSI_TX This Multi-Channel Socket interface (MCSI) is intended to support external digital voice interface with PCMCodec connection (such as Bluetooth).
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 Electrical Characteristics Parameters Conditions Min Nom Max Unit High level input voltage, VIH - 1.26 - 1.89 V Low level input voltage, VIL - 0 - 0.36 V High level output voltage, VOH IO = 5mA 1.35 - - V Low level output voltage, VOL IO = 5mA - - 0.5 V - - 5 - mA Output current For hardware reference only.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.17 General Purposes Input / Output ports – GPIO_1-GPIO_17 Each GPIO port can be configured individually as input or output ports through AT Commands.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.18 Keyboard Interface – KBC0-KBC4, KBR0-KBR4 The 10-pin keyboard interface includes 5 row inputs and 5 column outputs. The 5 output lines can alternatively be used as general purpose outputs while the 5 input lines can alternatively be used as general purpose inputs. Please contact iWOW directly for more information on the extended customization to this interface.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.18.1 Implementation of a 5x5 keyboard If a key button of the keyboard matrix is pressed, the corresponding row and column lines are shorted together. To allow key press detection, all input pins (KBR) are pulled up to VCC and all output pins (KBC) are driving a low level. Any action on a button will generate an interrupt through the input pin to the microcontroller that will, as answer, scan the column lines.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.19 2-Wire Serial Interface – I2C_SDA, I2C_SCL This is a half-duplex serial port using 2-line for data transmission consisting of SDA data signal and SDL clock signal. It can transfer at speeds up to 400Kbits/s (fast-mode). Note: Supports 1.8V I2C compliant devices.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.20.1 SPI Address 0 Pin Description: Signal Pin Number Type 22 Output SPI_NCS0 Description Termination MSSPI chip select 0 output Open 4.20.2 SPI Address 1 Pin Description: Signal SPI_NCS1 Pin Number 39 Type Output Description MSSPI chip select 1 output Termination Open For hardware reference only.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 4.22.2 RF Pad for Coaxial Cable An RF pad, along with two ground pads, is provided on the topside of the module (along iWOW logo) for direct connection to an antenna or coaxial cable. Please refer to the mechanical drawing for the location and dimensions of these pads. Ground Pads RF Pad Antenna receptacle 4.22.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 5 Electrical Characteristics Parameter Description Min Nom Max Unit VBAT Battery Input Voltage 3.2 3.8 4.5 V IBBURSTB Burst peak current - - 2.0 A 1.65 1.8 1.95 V - - 200 mA 2.7 2.85 2.95 V Supply Input: Regulated Output: VBOUTB Output voltage IBOUTB Rated output current SIM Card Related: VSIM Output voltage to 3V SIM card VIL SIMDTC, Low level input voltage - - 0.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 5.1 Absolute Maximum Ratings Below list the absolute maximum ratings over operating free-air temperature: Parameter Rating Supply voltage range, VBAT -0.3 V to +5.5 V Voltage on any input -0.2 V to +2.0 V Peak output current on VIO (Note) 1.8V Peak output current on VSIM 15 mA Free-air temperature range.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 6 MECHANICAL DRAWING All specifications are correct at the time of release. iWOW Connections owns the proprietary rights to the information contained herein this document. It 4may not be edited, copied or circulated without prior written agreement by iWOW Connections Pte Ltd.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.1 7 SUPPORT/ CONTACT US For distributor clients, please contact your respective distributor FAE. For direct clients, please contact iWOW FAE (Technical Support Department) or email us at technicalsupport@iwow.com.sg. For general enquiries please contact us at: iWOW Connections Pte Ltd 1 Lorong 2 Toa Payoh, #04-01 Yellow Pages Building Singapore 319637 Office: (65) 6748 8123 Fax : (65) 6748 2668 Email: sales@iwow.com.
