TR-900 GSM/GPRS Module Product Technical Specifications Date : 20 December 2010 Document Version : 1.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 Document History Revision 1.0 Date Document History 20 Dec 2010 Preliminary Release 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. © 2011 iWOW Connections Pte Ltd.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 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 v1.0 TABLE OF CONTENTS 1 INTRODUCTION............................................................................................................................ 1 1.1 Reference Documents ................................................................................................................... 1 1.2 Abbreviations ................................................................................................................
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 4.10.1 SIM Detection .................................................................................................................... 23 4.10.2 SIM Card Holder ................................................................................................................. 23 4.11 4.11.1 4.12 4.12.1 4.13 4.13.1 4.14 Serial Link (UART) Interfaces ...............................................................................
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 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 Reference Documents S/N 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 v1.0 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 v1.0 Manufacturers of cellular terminal or mobile equipment incorporating the TR-900 are advised 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 v1.0 Users of portable devices incorporating TR-900 are required to have their final product certified and apply for their own FCC Grant related to the specific portable mobile. This is mandatory to meet the SAR requirements for portable mobiles.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 2 Technical Specifications 2.1 General Specifications Feature Description Network Type 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: 27 x 27 x 3.0mm Weight: 6.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 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 v1.0 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 v1.0 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 v1.0 4.1.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 Pin Signal Name Signal I/O Alternate Functions Description 43 SIM_RST O SIM Reset - 44 VRSIM O Power supply for 1.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 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 v1.0 4.2.1 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.. Figure 4: Example Voltage Backup connection 4.3 Operating Modes Operation Type Mode Description Normal Operation GSM IDLE The module is registered to the network.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 Operation Type Mode Description this mode. The module will go into power down mode automatically if the power supply falls below 3.2V. MINIMUM The module enter into minimum functional mode with FUNCTION AT+CFUN=0. In this mode, the module will disconnect from network and power down SIM card. AIRPLANE The module enter into airplane mode with AT+CFUN=4.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 4.4 Backup Power Supply – VBACKUP Backup capacitor can be connected to the module. It is used as a backup power supply to maintain the internal Real Time Clock (RTC). This feature is required to maintain the date and time in the module during powered-OFF to reduce power consumption.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 Figure 5: Charging Circuit Diagram Example 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 4.6 Description Termination Charger external transistor control Open Charging current sense Open 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 v1.0 Electrical Characteristics Parameters Conditions Min Nom Max Unit Resolution - - 10 - Bits Reference voltage - - 1.2 - V Differential non-linearity - -2 - 2 LSB Best Fitting -2 - 2 LSB Input Range - 0 1.2 V Switching running frequency - - 26 - MHz Clock Period, t - - 38.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 4.7.1 State Transitions The following is the state transitions for the TR-900 module. State Description Power-OFF Module is not powered by any supply, main or backup. Power-ON Charged main supply or backup supply is plugged in. Switch-OFF Module is powered and switched from ACTIVE or SLEEP state to reach the OFF or BACKUP state. Switch-ON 4.7.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 4.7.3 Switch-OFF Condition The module has to be in the ON state. This condition will switch-OFF the module: A falling edge signal is detected on the PWON pin after debouncing and the signal remains low for a minimum period of 900ms. The PWON signal must be released back to high after the module has switched-OFF. When the level of the main supply VBATT decreases below 2.8V and below the level of the backup supply.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 Pin Description Signal Pin Number Type Description RESET 10 Input(internally pulled up by External Reset Input. 20 k) For testing purpose only. 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. 4.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 Pin Description Signal Pin Number Type Description SIMIO 16 Input/ Output SIM Data SIMCLK 17 Output SIM Clock SIMRST 43 Output SIM Reset VRSIM 44 Output Power supply for 1.8V/3V SIM SIMDTC 45 Input SIM Card Detection Electrical Characteristics Parameters 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.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 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 host device using AT Commands. The UART features are: 16C750 compatibility Baud rate from 300 bits/s up to 115200 bits/s with auto-bauding support feature Note: Default factory setting baudrate is set at 115200, unless other specified.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 4.12 Application The block diagram below shows the possible UART connection. TXD /RXD PC TR-900 Figure 7: Interfacing with UART Figure 8: Level-shifter connection to RS232 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.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 4.12.1 Ring Indicate - RI The Ring Indicator (RI) is used for network activity indication. RI is defaulted at an active low signal and will toggle to indicate various activities as described below. When Voice, and Data calls are received, the RING indication is generated every 5 seconds and sent over RI Pin For unsolicited SMS indication, it will result in RI to go low for 1 second.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 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. The USB power line is 5V I/O compliant. It is primarily meant for support flashing of firmware. Note: Connection of a 4.7F Capacitor externally at VBUS for filtering is required.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 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 v1.0 Figure 10: Example of earphone implementation 4.14.3 Speaker – SPKNA, SPKPA The class D amplifier is capable of driving 700 mWrms into an 8 ohms load. Default switching frequency is 600 kHz.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 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 v1.0 Electrical Characteristics Parameters Conditions Min Nom Max Unit High level input voltage, VIH - 1.10 - 1.89 V Low level input voltage, VIL - 0- - 0.65 V High level output voltage, VOH IO = 4mA 1.26 - - V Low level output voltage, VOL IO = 4mA - - 0.45 V - - 4 - mA Output current For hardware reference only.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 Electrical Characteristics Parameters Conditions Min Nom Max Unit High level input voltage, VIH - 1.10 - 1.89 V Low level input voltage, VIL - 0 - 0.65 V High level output voltage, VOH IO = 4mA 1.26 - - V Low level output voltage, VOL IO = 4mA - - 0.45 V Rated output current, IOL / IOH - - 4 - mA 4.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 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 v1.0 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 v1.0 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 v1.0 4.21.2 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 4.21.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 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 v1.0 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 38 may not be edited, copied or circulated without prior written agreement by iWOW Connections Pte Ltd.
Confidential TR-900 Module Product Technical Specifications •02000B33 v1.0 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.
