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EETE NOVEMBER 2012

DESIGN & PRODUCTS WIRELESS COMMUNICATIONS Miniature GPS receiver uses 3D embedded Credit card size software defined radio technology to be market’s smallest demonstrator for wireless data Measuring only 4.7x4.7mm, the Jupiter SE880 GPS receiver CML Microcircuits has released a small demonstration plat- module from Telit Wireless Solutions is a SiRFstarIV-based form for a complete software defined radio (SDR) for wireless solution with a sensitivity of -148dB. A fully functioning receiver data applications. The DE9941 is a credit card sized dem- design requires only a 32 KHz external crystal for the time-base onstration board for a complete and a TCXO, along with antenna, power and data connections. linear modulation-based software Telit Wireless Solutions defined radio (SDR) for wire- www.telit.com less data. It is designed to be small and low-cost with minimal components/values. The small form factor is made possible by CML’s highly integrated RF and Baseband product offerings: the CMX998, CMX994 and CMX7164. The CMX998 is a Cartesian Loop Transmitter IC providing optimum PA linearisation for non-constant enve- lope/linear systems. The CMX994 is the ultimate direct con- version receiver, providing direct conversion from RF down to I/Q baseband. The CMX7164 multi-mode Wireless Data Modem IC, based on FirmASIC technology, offers multiple modulation schemes that can be uploaded into the device via function image. The DE9941 can be used to demonstrate transmit and receive performance with 4/16/64 QAM linear modulation and constant-envelope modulation schemes such as 2/4-level FSK and GMSK, which are also available on the CMX7164 Multi-mode Wireless Data Modem. Togeth- er with CML’s PE0002 interface board, a full transceiver can be demonstrated using a Function Image and control scripts. CML Microcircuits www.cmlmicro.com “In less than 5 days from running the tool, we improved the performance of our graphic rendering engine by 3x!”  Two-way 169 MHz wireless M-Bus meter - Terry West, Serious Integrated, Inc. reading module Radiocrafts has announced the new expanded feature set for its 169 MHz Wireless M-Bus module for long range automatic meter reading. The RC1700HP-MBUS4 module includes all features necessary for secure two-way communication between meter and concen- trator. The module contains a Wireless M-Bus stack, Understand, Troubleshoot and Optimize supporting all physical lay- ers, MAC layers and frame World-leading trace visualization formats, transport and security layers. All critical timing for two- for a new level of insight way communication is handled by the module, along with very in FreeRTOS-based software! low power features for extended battery lifetime. It is fully compliant with the new prEN 13757-4:2011, operat- Highly efficient software recording. ing in the new harmonized frequency band for meter reading in No extra trace hardware is needed. Europe. The typical range is 1.5 km in urban areas and 20-40 km in open terrain with quarter-wave antennas. When used at Download Free Edition the meter side, the unit provides very low current consumption and premium version evalution. in all operating modes; sleep mode, transmit mode and receive Request a personal free web demo. mode. The module handles reception time windows automati- cally, and will automatically enter sleep mode for lowest pos- www.percepio.com sible power consumption. When used at the concentrator side, the device can handle 256 meters storing individual encryp- tion keys internally, and several thousand meters by using an external host controller for expanded key memory. The module detects and checks ELL and APL encryption automatically. Radiocrafts www.radiocrafts.com 44 Electronic Engineering Times Europe November 2012 www.electronics-eetimes.com


EETE NOVEMBER 2012
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