Telit Wireless Solutions 1vv0300773a manual GSM Antenna PCB line Guidelines, 50 ohm

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GE863-PRO3Hardware User Guide

1vv0300773a Rev. 0 - 24/01/08

This line of transmission shall fulfil the following requirements:

ANTENNA LINE ON PCB REQUIREMENTS

Impedance

50 ohm

Max Attenuation

0,3 dB

No coupling with other signals allowed

Cold End (Ground Plane) of antenna shall be equipotential to the GE863-PRO3ground pins

Furthermore if the device is developed for the US market and/or Canada market, it shall comply to the FCC and/or IC approval requirements:

This device is to be used only for mobile and fixed application. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. End-Users must be provided with transmitter operation conditions for satisfying RF exposure compliance. OEM integrators must ensure that the end user has no manual instructions to remove or install the GE863-PRO3module. Antennas used for this OEM module must not exceed 3dBi gain for mobile and fixed operating configurations.

6.2 GSM Antenna - PCB line Guidelines

•Ensure that the antenna line impedance is 50 ohm;

•Keep the antenna line on the PCB as short as possible, since the antenna line loss shall be less than 0,3 dB;

•Antenna line must have uniform characteristics, constant cross section, avoid meanders and abrupt curves;

•Keep, if possible, one layer of the PCB used only for the Ground plane;

•Surround (on the sides, over and under) the antenna line on PCB with Ground, avoid having other signal tracks facing directly the antenna line track;

•The ground around the antenna line on PCB has to be strictly connected to the Ground Plane by placing vias once per 2mm at least;

•Place EM noisy devices as far as possible from GE863-PRO3antenna line;

•Keep the antenna line far away from the GE863-PRO3power supply lines;

•If you have EM noisy devices around the PCB hosting the GE863-PRO3, such as fast switching ICs, take care of the shielding of the antenna line by burying it inside the layers of PCB and surround it with Ground planes, or shield it with a metal frame cover.

•If you don't have EM noisy devices around the PCB of GE863-PRO3 , by using a strip-line on the superficial copper layer for the antenna line, the line attenuation will be lower than a buried one;

Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved

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Contents GE863-PRO3Hardware User Guide Contents GE863-PRO 3 Hardware User Guide This document is relating to the following products Disclaimer Overview Telit GE863-PRO3module overall dimension are GE863-PRO3Mechanical DimensionsLength 41,4 mm Width 31,4 mm Thickness 3,6 mm GE863-PRO3module connections C11 Simrst C12 Simio D1 Charge D2 VAUX1 DTE GPIO7 / Rftxdisable GSMC2 Vbatt C3 Vrtc D10 GND D11 Simvcc D12 Simclk E1 GND E2 PwrmonPB9 Nrst Reset ARMPB8 ON/OFF*-APPB1 PB0PB2 PB7XOUT32 HdmbXIN32 PA3VBATT2 Reserved GNDBalls Layout ARM Port IO multiplexing ARM PIO Controller a multiplexingARM PIO Controller B multiplexing ARM PIO Controller C multiplexing Hardware Commands Turning on the GE863-PRO3GSM/GPRS Engine10k +1,8/52Turning OFF the GE863-PRO3GSM/GPRS Engine Hardware Unconditional Reboot of GSM/GPRS EngineHardware shutdown Turning ON/OFF the GE863-PRO3ARM ON/OFF*-AP # GND AT+CFUN=1 Power SupplyGSM Power Supply Requirements AT+CFUN=4ARM Power Supply Requirements Vrtc Backup supplySuggested circuit is General Design RulesElectrical design Guidelines 817A19A Seiko1.1 + 5V input Source Power Supply Design Guidelines 1.2 + 12V input Source Power Supply Design Guidelines Battery Source Power Supply Design Guidelines Battery Charge control Circuitry Design Guidelines GE863-PRO3Hardware User Guide Thermal Design Guidelines Power Supply PCB layout Guidelines Antenna GSM Antenna RequirementsGSM Antenna PCB line Guidelines 50 ohmGSM Antenna installation Guidelines Electro Magnetic Interference GuidelinesAbsolute Maximum Ratings -Not Functional Parameter Min Max Logic level specificationsOperating Range Interface levels Cmos Level Min Max Cmos 1.8V-A Current characteristics Level Typical GSM Gpio Current characteristics Level TypicalCmos 3.1V Current characteristics Level Typical Operating Range Interface levels Cmos Vrtc Level Min MaxPhone reset Signal FunctionSignal Min Max Serial Ports Modem Serial Port Modem Serial Port 2 DebugSignals of the GE863-PRO3GSM/GPRS engine serial port are RS232 level translation An example of level translation circuitry of this kind is GE863-PRO3Hardware User Guide Audio Section Overview Input Lines Microphone Short descriptionInput Lines Characteristics Micmt 1st differential microphone pathOutput Lines Speaker Output Lines Characteristics Earmt Differential Line-out Drivers PathEvaluation Kit for Telit GE863- PRO3 Modules 10 GSM/GPRS General Purpose I/O ON/OFFUsing the RF Transmission Control GPIO7 Using a Gpio Pad as InputUsing a Gpio Pad as Output 10.4Using the Rftxmon Output GPIO3Using the Alarm Output Using the Buzzer Output GPIO4LED status 10.7Indication of network service availabilityDevice Status Operating Range VAUX1 power supply 10.9VAUX1 power outputRTC Bypass out Stencil Mounting the GE863-PRO3on the Application Board11.1General PCB pad DesignSolder paste 11.1.4 GE863-PRO3Solder Reflow Following is the recommended solder reflow profile3C/second max Packing System Section A-AModules orientation on tray Moisture Sensibility Conformity Assessment Issues Safety Recommandations Document Change Log Revision Date Changes

1vv0300773a specifications

Telit Wireless Solutions 1VV0300773A is an advanced cellular module specifically designed for a wide range of IoT applications. This module is part of Telit’s extensive portfolio, which is renowned for its reliability and innovation in the wireless communication space. The 1VV0300773A module stands out due to its compact design and robust performance, making it an ideal choice for developers looking to integrate cellular connectivity into their projects.

One of the main features of the 1VV0300773A is its support for multiple communication protocols, which enhances its versatility. The module is designed to support various LTE CAT M1 and NB-IoT networks. These technologies are critical for low-power wide-area network (LPWAN) applications, allowing devices to stay connected over long distances while consuming minimal energy. This is particularly beneficial for battery-operated devices in sectors like smart agriculture, smart cities, and industrial IoT.

The module is equipped with a powerful ARM Cortex-M3 processor, which enables efficient data processing and facilitates complex computations required for many IoT applications. Additionally, it features a comprehensive set of interfaces, including UART, GPIO, and I2C, enabling easy integration with various sensors and peripherals. This modularity ensures that developers can customize their applications based on specific business needs.

Security is another crucial aspect of the 1VV0300773A module. Telit incorporates advanced security features including secure boot, data encryption, and a secure element, ensuring that data transmitted over cellular networks is protected against unauthorized access. This commitment to security is vital in today’s increasingly connected world, where data privacy is a top concern.

Furthermore, the 1VV0300773A module supports extensive over-the-air firmware updates, allowing manufacturers to deploy updates and enhancements seamlessly. This capability extends the lifecycle of devices in the field and ensures that they can adapt to new requirements and security standards over time.

In summary, Telit Wireless Solutions 1VV0300773A offers a blend of advanced features, robust technologies, and essential characteristics tailored for the rapidly evolving IoT landscape. Its combination of multi-network support, secure communication, and efficient processing makes it a standout choice for developers and enterprises looking to enhance their connectivity solutions.
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